Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104138
Hang Lv, Changlu Zhao, Miqi Wang, Tao Cui, Zhenyu Zhang, Fujun Zhang
The front powertrain of series mild hybrid electric vehicles (HEVs) often struggles to meet the vehicle’s instantaneous power demand due to insufficient dynamic response of the engine-generator set (EGS) and battery power limitations, leading to poor dynamic characteristics and fuel economy. To address this issue, a phase characteristic control strategy for the front powertrain is proposed. It establishes a four-quadrant working plane for fuel-electric dual-source power output and divides it into twelve phase domains based on power flow, encompassing all possible operating modes of series mild HEVs. Considering the lag effect of the turbocharged engine, phase domain switching strategies are proposed for transient operating conditions, and the phase trajectory laws of the front powertrain are derived. Simulations conducted to validate the strategies show that, compared to the baseline, the proposed strategies reduce acceleration time by 8.9 % and 42.6 % during acceleration from 0 to 32 km/h, and decrease equivalent fuel consumption by 5.4 % and 7.0 %, respectively. Under braking condition from 40 to 20 km/h, the phase domain switching strategy improves braking energy recovery by 41 % compared to the baseline, with the EGS exhibiting improved dynamic response after braking.
{"title":"Phase characteristic control strategy for the front powertrain of series mild HEV considering dynamic response of engine-generator set","authors":"Hang Lv, Changlu Zhao, Miqi Wang, Tao Cui, Zhenyu Zhang, Fujun Zhang","doi":"10.1016/j.seta.2024.104138","DOIUrl":"10.1016/j.seta.2024.104138","url":null,"abstract":"<div><div>The front powertrain of series mild hybrid electric vehicles (HEVs) often struggles to meet the vehicle’s instantaneous power demand due to insufficient dynamic response of the engine-generator set (EGS) and battery power limitations, leading to poor dynamic characteristics and fuel economy. To address this issue, a phase characteristic control strategy for the front powertrain is proposed. It establishes a four-quadrant working plane for fuel-electric dual-source power output and divides it into twelve phase domains based on power flow, encompassing all possible operating modes of series mild HEVs. Considering the lag effect of the turbocharged engine, phase domain switching strategies are proposed for transient operating conditions, and the phase trajectory laws of the front powertrain are derived. Simulations conducted to validate the strategies show that, compared to the baseline, the proposed strategies reduce acceleration time by 8.9 % and 42.6 % during acceleration from 0 to 32 km/h, and decrease equivalent fuel consumption by 5.4 % and 7.0 %, respectively. Under braking condition from 40 to 20 km/h, the phase domain switching strategy improves braking energy recovery by 41 % compared to the baseline, with the EGS exhibiting improved dynamic response after braking.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104138"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104122
Seyed Alireza Mousavi Rabeti , Mohammad Hasan Khoshgoftar Manesh , Amir Farhang Sotoodeh , Majid Amidpour
The global water crisis, increasing droughts, and Iran’s status as a water-stressed nation have underscored the urgent need for sustainable potable water solutions. This study introduces a comprehensive management framework for solar desalination systems aimed at delivering renewable water resources at urban, rural, and building scales. Initially, various desalination and solar technologies are thoroughly analyzed. Using Iran as a case study, the research examines climatic factors such as temperature, solar irradiation, humidity, rainfall, water demand, and water resources. Prioritization of desalination and solar technologies is determined through value engineering. Subsequently, the need for solar desalination systems across various Iranian cities is assessed based on operational feasibility and value engineering principles. A roadmap is then presented for selecting appropriate solar desalination technologies tailored to specific management requirements. Detailed technical, economic, and environmental analyses are conducted on systems such as photovoltaic-reverse osmosis (PV-RO), parabolic trough collector-multi-effect distillation (PTC-MED), parabolic trough collector-multi-stage flash (PTC-MSF), and the hybrid CPVT-MEDRO. The PV-RO system, selected as the most suitable solar desalination solution for numerous urban, rural, and construction applications, demonstrates the highest economic performance, with a payback period of just 1.5 years, making it a financially viable option. Among the photovoltaic panels evaluated for PV-RO systems, the C-Si type panel emerged as the most advantageous from both economic and environmental perspectives. Additionally, the PTC-MED and CPVT-MEDRO systems, with payback periods of 3.5 and 3 years, respectively, are identified as appealing choices for coastal cities, considering both financial and environmental factors.
{"title":"Development of a New strategy for selecting solar desalination plants based on Techno-Economic, Environmental, and climatic Issues: The case study of Iran","authors":"Seyed Alireza Mousavi Rabeti , Mohammad Hasan Khoshgoftar Manesh , Amir Farhang Sotoodeh , Majid Amidpour","doi":"10.1016/j.seta.2024.104122","DOIUrl":"10.1016/j.seta.2024.104122","url":null,"abstract":"<div><div>The global water crisis, increasing droughts, and Iran’s status as a water-stressed nation have underscored the urgent need for sustainable potable water solutions. This study introduces a comprehensive management framework for solar desalination systems aimed at delivering renewable water resources at urban, rural, and building scales. Initially, various desalination and solar technologies are thoroughly analyzed. Using Iran as a case study, the research examines climatic factors such as temperature, solar irradiation, humidity, rainfall, water demand, and water resources. Prioritization of desalination and solar technologies is determined through value engineering. Subsequently, the need for solar desalination systems across various Iranian cities is assessed based on operational feasibility and value engineering principles. A roadmap is then presented for selecting appropriate solar desalination technologies tailored to specific management requirements. Detailed technical, economic, and environmental analyses are conducted on systems such as photovoltaic-reverse osmosis (PV-RO), parabolic trough collector-multi-effect distillation (PTC-MED), parabolic trough collector-multi-stage flash (PTC-MSF), and the hybrid CPVT-MEDRO. The PV-RO system, selected as the most suitable solar desalination solution for numerous urban, rural, and construction applications, demonstrates the highest economic performance, with a payback period of just 1.5 years, making it a financially viable option. Among the photovoltaic panels evaluated for PV-RO systems, the C-Si type panel emerged as the most advantageous from both economic and environmental perspectives. Additionally, the PTC-MED and CPVT-MEDRO systems, with payback periods of 3.5 and 3 years, respectively, are identified as appealing choices for coastal cities, considering both financial and environmental factors.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104122"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104127
Wenwen Tan , Jingyi Ye , Yong Wang , Yi Zhou , Yi Xia , Qi Feng , Longjun Xu
How to treat the actual shale gas flowback wastewater (FW) is a serious challenge for the unconventional gas industry. Herein, an environmentally friendly and energy reusable green technology microbial fuel cell（MFC）is reported. Ni-P is electrodeposited on NiCo2O4/ carbon cloth (CC) electrode as the anode of MFC and used to treat actual FW to observe the power generation and degradation performance. The high conductivity and large specific surface of the composites positively improve the formation of biofilm on the electrode surface and reduce the influence of electron transfer. Moreover, the smaller charge transfer resistance of the composite electrode compared to the CC and NiCo2O4/CC lays the foundation for its excellent power production performance. As the Ni-P@NiCo2O4 anode MFC is run for 34 days, there is a maximum output voltage of 522.4 mV, and the removal of chemical demand is 61.55 %, which is better than the CC (26 d, 362.5 mV, 49.74 %). High-throughput testing shows that Desulfobacterota is the dominant electroactive bacterium and that modified electrodes can dramatically alter the enrichment of the dominant species. Therefore, this work is important for the resource utilization of FW, practical application and performance improvement of MFC.
{"title":"Nickel phosphide modified nickel cobaltate as microbial fuel cell anode to facilitate the treatment of shale gas flowback wastewater: Electricity generation performance and mechanism","authors":"Wenwen Tan , Jingyi Ye , Yong Wang , Yi Zhou , Yi Xia , Qi Feng , Longjun Xu","doi":"10.1016/j.seta.2024.104127","DOIUrl":"10.1016/j.seta.2024.104127","url":null,"abstract":"<div><div>How to treat the actual shale gas flowback wastewater (FW) is a serious challenge for the unconventional gas industry. Herein, an environmentally friendly and energy reusable green technology microbial fuel cell（MFC）is reported. Ni-P is electrodeposited on NiCo<sub>2</sub>O<sub>4</sub>/ carbon cloth (CC) electrode as the anode of MFC and used to treat actual FW to observe the power generation and degradation performance. The high conductivity and large specific surface of the composites positively improve the formation of biofilm on the electrode surface and reduce the influence of electron transfer. Moreover, the smaller charge transfer resistance of the composite electrode compared to the CC and NiCo<sub>2</sub>O<sub>4</sub>/CC lays the foundation for its excellent power production performance. As the Ni-P@NiCo<sub>2</sub>O<sub>4</sub> anode MFC is run for 34 days, there is a maximum output voltage of 522.4 mV, and the removal of chemical demand is 61.55 %, which is better than the CC (26 d, 362.5 mV, 49.74 %). High-throughput testing shows that <em>Desulfobacterota</em> is the dominant electroactive bacterium and that modified electrodes can dramatically alter the enrichment of the dominant species. Therefore, this work is important for the resource utilization of FW, practical application and performance improvement of MFC.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104127"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104126
Nitish Srivastava, Pratham Arora, Rhythm Singh, Amit C. Bhosale
The sustenance of increasing population and climate change obligation have drifted the research towards integrating renewable energy with farming practices. The present study aims to understand the synergy between energy requirements of solar pumping and N-fertilizer in Indian conditions and presenting a techno-enviro-economic benchmark for producing sustainable nitrogenous fertilizer using unused energy from solar pumping at the farm level. Five major crops and their land shares have been identified for each agro-climatic zone, followed by the estimation of irrigation and N-fertilizer requirements, and sizing of solar pumping. The analysis using the surplus energy from solar pumping and N-fertilizer requirement suggests a required yield and rate of 0.126 kg N/kWh and 0.086 kg N/h for meeting 75 percent of the total requirement. A correlation between potential reduction in CO2 emissions, carbon tax, and cost, in terms of ammonia, the crucial reagent of N-fertilizers, estimates a benchmark cost of 0.768 USD/kg NH3 at a target emission of 0.5 kg CO2 eq./kg N. Integrating solar pumping with decentralized N-fertilizer production technology at the farm level can be effectively realized to cater to the irrigation and N-fertilizer requirements using solar energy and contribute to the fields of solar energy, agriculture, and sustainable development.
{"title":"Exploring synergy between solar pumping and nitrogenous fertilizer requirement in India","authors":"Nitish Srivastava, Pratham Arora, Rhythm Singh, Amit C. Bhosale","doi":"10.1016/j.seta.2024.104126","DOIUrl":"10.1016/j.seta.2024.104126","url":null,"abstract":"<div><div>The sustenance of increasing population and climate change obligation have drifted the research towards integrating renewable energy with farming practices. The present study aims to understand the synergy between energy requirements of solar pumping and N-fertilizer in Indian conditions and presenting a techno-enviro-economic benchmark for producing sustainable nitrogenous fertilizer using unused energy from solar pumping at the farm level. Five major crops and their land shares have been identified for each agro-climatic zone, followed by the estimation of irrigation and N-fertilizer requirements, and sizing of solar pumping. The analysis using the surplus energy from solar pumping and N-fertilizer requirement suggests a required yield and rate of 0.126 kg N/kWh and 0.086 kg N/h for meeting 75 percent of the total requirement. A correlation between potential reduction in CO<sub>2</sub> emissions, carbon tax, and cost, in terms of ammonia, the crucial reagent of N-fertilizers, estimates a benchmark cost of 0.768 USD/kg NH<sub>3</sub> at a target emission of 0.5 kg CO<sub>2</sub> eq./kg N. Integrating solar pumping with decentralized N-fertilizer production technology at the farm level can be effectively realized to cater to the irrigation and N-fertilizer requirements using solar energy and contribute to the fields of solar energy, agriculture, and sustainable development.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104126"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104144
Linhao Wang , Dongqiang Lei , Yue Lv , Ruishen Guo , Ying Wu , Zhifeng Wang
In the study, a novel photodeposition one-step method for preparing Cu/TiO2 photothermal catalysis was proposed to catalyze hydrogen production from glycerol. The biomass glycerol was used as a sacrificial agent to provide electrons for Cu2+ loading during the catalyst preparation stage, and the remaining biomass glycerol was used directly as a reactant for photothermal-catalyzed hydrogen production. The catalysts were characterized using XRD, SEM, and TEM to obtain their phases and structures. The Cu/TiO2 photodeposition process evaluation method based on image analysis and processing, and its experimental platform were established. The influence of parameters such as irradiation intensity, temperature, and catalyst concentration on the loading rate of photodeposited Cu2+ was analyzed. The results demonstrated that enhancing the irradiation intensity, increasing the temperature, and decreasing the catalyst concentration can increase the loading rate of Cu. The Cu/TiO2 photothermal catalyst prepared by this method showed a hydrogen production rate 1.6 times higher than that of the deposition and precipitation method under the same reaction conditions, which proved that the catalyst had a high photothermal catalysis hydrogen production activity. The hydrogen production rate at an irradiation intensity of 250 mW/cm2 was 628.16 μmol/(g·h), which was 1.9 times that at an irradiation intensity of 100 mW/cm2. Both elevated temperature and increased irradiation intensity can significantly improve the photothermal catalysis glycerol hydrogen production activity.
{"title":"Experimental study on preparing Cu/TiO2 photothermal catalysts using photodeposition one-step method and its application in catalytic hydrogen production from glycerol","authors":"Linhao Wang , Dongqiang Lei , Yue Lv , Ruishen Guo , Ying Wu , Zhifeng Wang","doi":"10.1016/j.seta.2024.104144","DOIUrl":"10.1016/j.seta.2024.104144","url":null,"abstract":"<div><div>In the study, a novel photodeposition one-step method for preparing Cu/TiO<sub>2</sub> photothermal catalysis was proposed to catalyze hydrogen production from glycerol. The biomass glycerol was used as a sacrificial agent to provide electrons for Cu<sup>2+</sup> loading during the catalyst preparation stage, and the remaining biomass glycerol was used directly as a reactant for photothermal-catalyzed hydrogen production. The catalysts were characterized using XRD, SEM, and TEM to obtain their phases and structures. The Cu/TiO<sub>2</sub> photodeposition process evaluation method based on image analysis and processing, and its experimental platform were established. The influence of parameters such as irradiation intensity, temperature, and catalyst concentration on the loading rate of photodeposited Cu<sup>2+</sup> was analyzed. The results demonstrated that enhancing the irradiation intensity, increasing the temperature, and decreasing the catalyst concentration can increase the loading rate of Cu. The Cu/TiO<sub>2</sub> photothermal catalyst prepared by this method showed a hydrogen production rate 1.6 times higher than that of the deposition and precipitation method under the same reaction conditions, which proved that the catalyst had a high photothermal catalysis hydrogen production activity. The hydrogen production rate at an irradiation intensity of 250 mW/cm<sup>2</sup> was 628.16 μmol/(g·h), which was 1.9 times that at an irradiation intensity of 100 mW/cm<sup>2</sup>. Both elevated temperature and increased irradiation intensity can significantly improve the photothermal catalysis glycerol hydrogen production activity.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104144"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biomass, a renewable resource crucial for carbon neutrality, serves as a sustainable alternative to fossil fuels by closing the carbon loop. The biotransformation of biomass into carbon–neutral fuels for bioenergy and bioelectricity plays a key role in addressing climate change. Recent advancements in biomass bioenergy management, carbon capture, and carbon-negative emission technologies have been pivotal in reducing atmospheric CO2. However, the integration of artificial intelligence (AI) has markedly enhanced these traditional models by optimizing the biomass supply chain, selecting optimal feedstocks, and refining the operation of bioenergy plants. This review delves into the recent applications of AI in biomass bioenergy, highlighting AI-driven decision-making systems that improve computing and reasoning techniques toward carbon neutrality. Our analysis reveals a wide array of AI techniques, including genetic algorithms, swarm intelligence, artificial neural networks, fuzzy logic, and supervised machine learning, which have been deployed across the biomass bioenergy value chain. Notable outcomes suggested that AI can reduce CO2 emissions by 5% to 10%, equivalent to 2.6 to 5.3 gigatons of CO2. This review emphasizes AI’s transformative role in enhancing biomass bioenergy production, positioning it as a critical tool for sustainable energy solutions and future environmental policies to achieve carbon neutrality.
{"title":"Recent advancements in biomass to bioenergy management and carbon capture through artificial intelligence integrated technologies to achieve carbon neutrality","authors":"Shivani Chauhan , Preeti Solanki , Chayanika Putatunda , Abhishek Walia , Arvind Keprate , Arvind Kumar Bhatt , Vijay Kumar Thakur , Ravi Kant Bhatia","doi":"10.1016/j.seta.2024.104123","DOIUrl":"10.1016/j.seta.2024.104123","url":null,"abstract":"<div><div>Biomass, a renewable resource crucial for carbon neutrality, serves as a sustainable alternative to fossil fuels by closing the carbon loop. The biotransformation of biomass into carbon–neutral fuels for bioenergy and bioelectricity plays a key role in addressing climate change. Recent advancements in biomass bioenergy management, carbon capture, and carbon-negative emission technologies have been pivotal in reducing atmospheric CO<sub>2</sub>. However, the integration of artificial intelligence (AI) has markedly enhanced these traditional models by optimizing the biomass supply chain, selecting optimal feedstocks, and refining the operation of bioenergy plants. This review delves into the recent applications of AI in biomass bioenergy, highlighting AI-driven decision-making systems that improve computing and reasoning techniques toward carbon neutrality. Our analysis reveals a wide array of AI techniques, including genetic algorithms, swarm intelligence, artificial neural networks, fuzzy logic, and supervised machine learning, which have been deployed across the biomass bioenergy value chain. Notable outcomes suggested that AI can reduce CO<sub>2</sub> emissions by 5% to 10%, equivalent to 2.6 to 5.3 gigatons of CO<sub>2</sub>. This review emphasizes AI’s transformative role in enhancing biomass bioenergy production, positioning it as a critical tool for sustainable energy solutions and future environmental policies to achieve carbon neutrality.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104123"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electric mobility is an emerging technological alternative to reduce carbon emissions in the transportation sector. Leading countries in electromobility have developed comprehensive regulations for the production, infrastructure, and use of electric vehicles. This article examines the main international and Brazilian regulations and standards related to electric vehicle charging infrastructure, highlighting the specificities and gaps of each approach. The comparative analysis includes regulations such as the European Union’s Directive 2014/94/EU and Japan’s JEVS G105-1993 and China’s GB/T 18487-3 standards, in contrast to the current situation in Brazil, which lacks a more structured regulatory framework. The used methodology involves a literature review and analysis of regulatory documents, with criteria focused on standardization, pricing, installation, homologation, and tax incentives. The results show that the Brazilian regulatory scenario needs greater coherence and improvement, especially regarding technical standardization and incentive policies. It is essential that stakeholders collaborate to develop specific policies and guidelines that address the identified gaps and encourage the adoption of electric vehicles in Brazil. The study suggests the adoption of more detailed regulations and the establishment of fiscal and technical incentive mechanisms to align Brazil with international best practices and accelerate the transition to electric mobility.
{"title":"Regulations and standards for electric vehicle charging infrastructure: A comparative analysis between Brazil and leading countries in electromobility","authors":"Maileen Schwarz Simão , Ivangelo Vicente , Beatriz Batista Cardoso , Marco Aurélio Gianesini , Maurício Ibarra Dobes , Roberto Kinceler , Thiago Jeremias","doi":"10.1016/j.seta.2024.104119","DOIUrl":"10.1016/j.seta.2024.104119","url":null,"abstract":"<div><div>Electric mobility is an emerging technological alternative to reduce carbon emissions in the transportation sector. Leading countries in electromobility have developed comprehensive regulations for the production, infrastructure, and use of electric vehicles. This article examines the main international and Brazilian regulations and standards related to electric vehicle charging infrastructure, highlighting the specificities and gaps of each approach. The comparative analysis includes regulations such as the European Union’s Directive 2014/94/EU and Japan’s JEVS G105-1993 and China’s GB/T 18487-3 standards, in contrast to the current situation in Brazil, which lacks a more structured regulatory framework. The used methodology involves a literature review and analysis of regulatory documents, with criteria focused on standardization, pricing, installation, homologation, and tax incentives. The results show that the Brazilian regulatory scenario needs greater coherence and improvement, especially regarding technical standardization and incentive policies. It is essential that stakeholders collaborate to develop specific policies and guidelines that address the identified gaps and encourage the adoption of electric vehicles in Brazil. The study suggests the adoption of more detailed regulations and the establishment of fiscal and technical incentive mechanisms to align Brazil with international best practices and accelerate the transition to electric mobility.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104119"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104120
Neha Srivastava , Rajeev Singh , Basant Lal , Ashutosh Kumar Rai , Irfan Ahmad , P.K. Mishra , Hari Upadhyaya , Vijai Kumar Gupta
Plastic waste is considered one of the biggest blockages to environmental sustainability due to its wide consumption and huge production as a solid waste worldwide. Recycling and valorizing plastic waste via the thermochemical route is a promising approach. In this work, we report the preparation of activated carbon (AC) based catalyst using lab-used, microbiologically discarded petri dish plates and characterized through XRD, FT-IR, BET, SEM, and TEM techniques. Further, a comparative application of this activated AC catalyst has been studied in enzyme production through solid-state fermentation using open aerobic microbial culture (OAC) and a lab-isolated fungal culture Rhizopus oryzae NS5 (RO). Cellulase enzyme production with filter paper activity (FPA) of 28 IU/gds and 25 IU/gds FPA were noticed on day three of microbial fermentation using 0.5 mg AC catalyst in the case of OAC and RO systems, respectively. The crude cellulase enzyme obtained from OAC using 1 mg concentration in SSF reflected thermal stability at 50 °C and 60 °C, showing 42 % and 36 % of relative enzyme activity, along with 58 % of relative activity at pH 5.0 for 20 h at 50 °C. The research could have promising implications for plastic waste management and enzyme bioprocessing for a variety of industrial uses.
{"title":"Preparation of activated carbon from discarded microbial petri dish plastic waste and its application in hydrolytic enzyme bioprocessing and activation","authors":"Neha Srivastava , Rajeev Singh , Basant Lal , Ashutosh Kumar Rai , Irfan Ahmad , P.K. Mishra , Hari Upadhyaya , Vijai Kumar Gupta","doi":"10.1016/j.seta.2024.104120","DOIUrl":"10.1016/j.seta.2024.104120","url":null,"abstract":"<div><div>Plastic waste is considered one of the biggest blockages to environmental sustainability due to its wide consumption and huge production as a solid waste worldwide. Recycling and valorizing plastic waste <em>via</em> the thermochemical route is a promising approach.<!--> <!-->In this work, we report the preparation of activated carbon (AC) based catalyst using lab-used, microbiologically discarded petri dish plates and characterized through XRD, FT-IR, BET, SEM, and TEM techniques. Further, a comparative application of this activated AC catalyst has been studied in enzyme production through solid-state fermentation using open aerobic microbial culture (OAC) and a lab-isolated fungal culture Rhizopus oryzae NS5 (RO). Cellulase enzyme production with filter paper activity (FPA) of 28 IU/gds and 25 IU/gds FPA were noticed on day three of microbial fermentation using 0.5 mg AC catalyst in the case of OAC and RO systems, respectively. The crude cellulase enzyme obtained from OAC using 1 mg concentration in SSF reflected thermal stability at 50 °C and 60 °C, showing 42 % and 36 % of relative enzyme activity, along with 58 % of relative activity at pH 5.0 for 20 h at 50 °C. The research could have promising implications for plastic waste management and enzyme bioprocessing for a variety of industrial uses.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104120"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104137
N.I. Román-Roldán , A. López-Ortiz , J.F. Ituna-Yudonago , P.K. Nair , J. Rodríguez-Ramírez , S. Sandoval-Torres , Alex Martynenko
This work reviews various engineering factors influencing the efficiency of greenhouse solar dryers, focusing on drying load/volume ratio, ventilation, circulation mode, roof shape, materials, energy storage, and auxiliary heating, as reported in the last decade. The shape of the dryer roof is the most studied factor, with the even span roof being the most effective in capturing solar radiation, thus maximizing dryer efficiency. Nano Enhanced paraffin wax thermal storage systems have been shown to maintain drying temperatures and continue drying overnight. Auxiliary heating, such as single-pass flat solar collectors, helps to increase the air temperature when solar radiation is low. The maximum drying capacity of a greenhouse was found to be approximately 6 . Computational Fluid Dynamics (CFD) emerged as the most powerful tool for designing and simulating greenhouse solar dryers, allowing accurate predictions of dryer behavior by incorporating models for solar radiation, flow dynamics, buoyancy effects, and species transport, such as relative humidity. This review identifies key factors that significantly impact dryer efficiency, providing insight into optimizing greenhouse solar drying systems.
{"title":"A current review: Engineering design of greenhouse solar dryers exploring novel approaches","authors":"N.I. Román-Roldán , A. López-Ortiz , J.F. Ituna-Yudonago , P.K. Nair , J. Rodríguez-Ramírez , S. Sandoval-Torres , Alex Martynenko","doi":"10.1016/j.seta.2024.104137","DOIUrl":"10.1016/j.seta.2024.104137","url":null,"abstract":"<div><div>This work reviews various engineering factors influencing the efficiency of greenhouse solar dryers, focusing on drying load/volume ratio, ventilation, circulation mode, roof shape, materials, energy storage, and auxiliary heating, as reported in the last decade. The shape of the dryer roof is the most studied factor, with the even span roof being the most effective in capturing solar radiation, thus maximizing dryer efficiency. Nano Enhanced paraffin wax thermal storage systems have been shown to maintain drying temperatures and continue drying overnight. Auxiliary heating, such as single-pass flat solar collectors, helps to increase the air temperature when solar radiation is low. The maximum drying capacity of a greenhouse was found to be approximately 6 <span><math><mrow><mi>k</mi><mi>g</mi><mo>/</mo><msup><mrow><mi>m</mi></mrow><mrow><mn>3</mn></mrow></msup><mi>d</mi></mrow></math></span>. Computational Fluid Dynamics (CFD) emerged as the most powerful tool for designing and simulating greenhouse solar dryers, allowing accurate predictions of dryer behavior by incorporating models for solar radiation, flow dynamics, buoyancy effects, and species transport, such as relative humidity. This review identifies key factors that significantly impact dryer efficiency, providing insight into optimizing greenhouse solar drying systems.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104137"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-01DOI: 10.1016/j.seta.2024.104155
Robmilson Simões Gundim , Maria Cecíllia Ramos de Araújo Veloso , João Otávio Poletto Tomeleri , Gabriela Tami Nakashima , Gabriela Bertoni Belini , Alan Vitor Galmacci da Silva , Edilene de Cássia Dutra Nunes , Fabio Minoru Yamaji
An alternative for the disposal of solid and agricultural waste is their use for energy. But some difficulties still need to be overcome due to their characteristics, such as low density and heterogeneity. This study aimed to test the extrusion process to produce composites of Refuse-Derived Fuel (RDF) mixed with eucalyptus bark and sugarcane straw, for energy purpose. Six treatments were produced in a single screw extruder with replacement of 10, 25, and 50 % of the RDF in the biomass. The physical, chemical, and energetic characteristics of the treatments were assessed. The extrusion process helped to enhance essential factors for fuel viability. Composite material (RDF + biomass) reached a density 2.5 times greater than in natura and moisture content decreased up to 82 %. The HHV of the composites was greater than that of the biomass. There were decreases in the composite levels of harmful elements such as chlorine and calcium. Compared with the raw materials, composite properties improved and met the standards analyzed. The results indicate that extrusion process proved to be adequate for composite production. RDF mixed with biomass generates composites with potential use for fuel production. These composites allowing formulation adaptations according to material supply and application criteria.
{"title":"Extrusion allows optimizing the eucalyptus bark and sugarcane straw for energy generation with the addition of RDF (Refuse-Derived Fuel)","authors":"Robmilson Simões Gundim , Maria Cecíllia Ramos de Araújo Veloso , João Otávio Poletto Tomeleri , Gabriela Tami Nakashima , Gabriela Bertoni Belini , Alan Vitor Galmacci da Silva , Edilene de Cássia Dutra Nunes , Fabio Minoru Yamaji","doi":"10.1016/j.seta.2024.104155","DOIUrl":"10.1016/j.seta.2024.104155","url":null,"abstract":"<div><div>An alternative for the disposal of solid and agricultural waste is their use for energy. But some difficulties still need to be overcome due to their characteristics, such as low density and heterogeneity. This study aimed to test the extrusion process to produce composites of Refuse-Derived Fuel (RDF) mixed with eucalyptus bark and sugarcane straw, for energy purpose. Six treatments were produced in a single screw extruder with replacement of 10, 25, and 50 % of the RDF in the biomass. The physical, chemical, and energetic characteristics of the treatments were assessed. The extrusion process helped to enhance essential factors for fuel viability. Composite material (RDF + biomass) reached a density 2.5 times greater than in natura and moisture content decreased up to 82 %. The HHV of the composites was greater than that of the biomass. There were decreases in the composite levels of harmful elements such as chlorine and calcium. Compared with the raw materials, composite properties improved and met the standards analyzed. The results indicate that extrusion process proved to be adequate for composite production. RDF mixed with biomass generates composites with potential use for fuel production. These composites allowing formulation adaptations according to material supply and application criteria.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"73 ","pages":"Article 104155"},"PeriodicalIF":7.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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