Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2023044024
{"title":"Design and CFD Analysis of Conical Cavity Receiver for Scheffler Dish","authors":"","doi":"10.1615/interjenercleanenv.2023044024","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023044024","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67394593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2023043984
Narendra Sharma, K. K. Ghosh
{"title":"Optimization and Thermal Performance Investigation of Cylindrical Rods Filled with PCM Material using CFD Simulation Method","authors":"Narendra Sharma, K. K. Ghosh","doi":"10.1615/interjenercleanenv.2023043984","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023043984","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67394810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2023046852
Chen Qu, H. Kawamoto
{"title":"Facile production of 4-hydroxybenzoic acid from oil palm empty fruit bunch cell walls by alkali degradation at room temperature","authors":"Chen Qu, H. Kawamoto","doi":"10.1615/interjenercleanenv.2023046852","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023046852","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67396319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2023047201
O. Kon, Ismail Caner
{"title":"THE SOCIAL COST OF CARBON EVALUATION BASED ON CARBON CAPTURE AND STORAGE TECHNOLOGIES FOR POWER GENERATION PLANTS","authors":"O. Kon, Ismail Caner","doi":"10.1615/interjenercleanenv.2023047201","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023047201","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67396468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2023047626
M. Martinus, A. Haryanto, S. Triyono, M. Telaumbanua
{"title":"Natural Teak leaf vs. Polystyrene® and Paper: A comparison of the energy used to make single-use plates","authors":"M. Martinus, A. Haryanto, S. Triyono, M. Telaumbanua","doi":"10.1615/interjenercleanenv.2023047626","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023047626","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67396742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2023047769
Yuanyuan Zhang, Xiangying Cheng, Jiangting Zhao, Feng-ling Yang, F. Cheng
The simultaneous calcination and sulfation characteristics of limestone in simulative CFB flue gas atmosphere is examined using a slidable tube furnace system combined with X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) with a focus on the effect of particle size. The effect mechanism of particle size on simultaneous calcination and sulfation of limestone is further analyzed based on the effect of temperature and CO2 concentration. The qualitative and quantitative results show that calcination reaction dominates in the early simultaneous calcination and sulfation reaction of limestone and the predominant effect transforms from calcination to sulfation reaction in the late simultaneous reaction of limestone. Compared with small particle size limestone, the big particle size limestone slows the weight loss rate and weight gain rate and needs more time to achieve the lowest weight point. This is related to lower mole fraction loss rate of CaCO3 and mole fraction gain rate of CaSO4 during simultaneous calcination and sulfation of limestone with big particle size. The effect mechanism of particle size on simultaneous calcination and sulfation of limestone is mainly due to the change of reaction specific surface area, heat transfer, and mass transfer from the surface to the inside of limestone with different particle sizes.
{"title":"Effect of particle size on simultaneous calcination and sulfation of limestone","authors":"Yuanyuan Zhang, Xiangying Cheng, Jiangting Zhao, Feng-ling Yang, F. Cheng","doi":"10.1615/interjenercleanenv.2023047769","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023047769","url":null,"abstract":"The simultaneous calcination and sulfation characteristics of limestone in simulative CFB flue gas atmosphere is examined using a slidable tube furnace system combined with X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) with a focus on the effect of particle size. The effect mechanism of particle size on simultaneous calcination and sulfation of limestone is further analyzed based on the effect of temperature and CO2 concentration. The qualitative and quantitative results show that calcination reaction dominates in the early simultaneous calcination and sulfation reaction of limestone and the predominant effect transforms from calcination to sulfation reaction in the late simultaneous reaction of limestone. Compared with small particle size limestone, the big particle size limestone slows the weight loss rate and weight gain rate and needs more time to achieve the lowest weight point. This is related to lower mole fraction loss rate of CaCO3 and mole fraction gain rate of CaSO4 during simultaneous calcination and sulfation of limestone with big particle size. The effect mechanism of particle size on simultaneous calcination and sulfation of limestone is mainly due to the change of reaction specific surface area, heat transfer, and mass transfer from the surface to the inside of limestone with different particle sizes.","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67396757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2023047672
A. Pučkins, Pavels Osipovs, Sergejs D. Osipovs
{"title":"Method for the determination of tar produced from the pyrolysis of used tires","authors":"A. Pučkins, Pavels Osipovs, Sergejs D. Osipovs","doi":"10.1615/interjenercleanenv.2023047672","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023047672","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67397058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.v24.i8.140
Lei Li, V. Akkerman, Zhiwei Yang, D. Magalhães, R. Axelbaum
Designing an effective burner is vital for the development of coal combustion technologies. Because of high pressure, the volumetric fraction of the coal particles in the injected fuel in a pressurized oxy-combustion (POC) burner approaches or even exceeds the limitations allowed by the commercial computational fluid dynamics codes (e.g., Ansys Fluent). Consequently, for such high particle volumetric fractions, the interplay between the particles, the fluid flow, and the burner wall needs to be re-evaluated. The present computational work is a first step in a systematic analysis of the roles of various characteristics involved in the POC process, such as the method of particle release, its location, and the particle size. Specifically, pulverized coal is burned under an elevated pressure of 15 bar in an O2/CO2 environment. A 100 kW, a POC combustor, is modeled with Ansys Fluent using the Reynolds-averaged Navier-Stokes approach. It is revealed that for this pilot-scale, pressurized burner, the gas phase flow velocity in the near-wall region exhibits anomalies. With the major focus on POC, this work aims to eliminate/reduce the impact of high particle loading on the gas-phase flow. To scrutinize the role of particle loading in the near-wall region and eliminate the impact of this velocity on POC downstream, the particle-gas interplay in the boundary layer is investigated by means of the computational simulations incorporating the coupling between the turbulent flow and the particles. It is found that the tuning of the particle release location makes the gas-phase flow velocity in the presence of particles consistent with the pure gas flow velocity profile. The particles size is also found to have a significant impact on the particle trajectory.
{"title":"COMPUTATIONAL ANALYSIS OF THE IMPACT OF BOUNDARY CONDITIONS ON A PARTICLE-LADEN FLOW: A CASE STUDY IN A PRESSURIZED OXY-COAL COMBUSTOR","authors":"Lei Li, V. Akkerman, Zhiwei Yang, D. Magalhães, R. Axelbaum","doi":"10.1615/interjenercleanenv.v24.i8.140","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.v24.i8.140","url":null,"abstract":"Designing an effective burner is vital for the development of coal combustion technologies. Because of high pressure, the volumetric fraction of the coal particles in the injected fuel in a pressurized oxy-combustion (POC) burner approaches or even exceeds the limitations allowed by the commercial computational fluid dynamics codes (e.g., Ansys Fluent). Consequently, for such high particle volumetric fractions, the interplay between the particles, the fluid flow, and the burner wall needs to be re-evaluated. The present computational work is a first step in a systematic analysis of the roles of various characteristics involved in the POC process, such as the method of particle release, its location, and the particle size. Specifically, pulverized coal is burned under an elevated pressure of 15 bar in an O2/CO2 environment. A 100 kW, a POC combustor, is modeled with Ansys Fluent using the Reynolds-averaged Navier-Stokes approach. It is revealed that for this pilot-scale, pressurized burner, the gas phase flow velocity in the near-wall region exhibits anomalies. With the major focus on POC, this work aims to eliminate/reduce the impact of high particle loading on the gas-phase flow. To scrutinize the role of particle loading in the near-wall region and eliminate the impact of this velocity on POC downstream, the particle-gas interplay in the boundary layer is investigated by means of the computational simulations incorporating the coupling between the turbulent flow and the particles. It is found that the tuning of the particle release location makes the gas-phase flow velocity in the presence of particles consistent with the pure gas flow velocity profile. The particles size is also found to have a significant impact on the particle trajectory.","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67397815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.2022041464
Ramy Abdelmaksoud, Ting Wang
The passive sweeping jet fluidic oscillators are a promising potential candidate in heat transfer applications such as gas turbine cooling, electronic components cooling, and heat exchanger enhancement component. This review presents a detailed discussion, summary, and comparison of the heat transfer studies on the sweeping jets. Sweeping jets can be created by two different fluidic oscillators types (i.e., wall-attachment type and jet interaction type). Those passive fluidic oscillators do not need a moving part nor active control to create sweeping jets. In the wall-attachment type, the fluid enters the fluidic oscillator, fills the cavity (mixing chamber and two feedback tubes), and a power jet is formed. Due to the inherent infinitesimal disturbances in the primary flow, when the flow enters the chamber, Coanda effect pushes the flow to one side, introducing two asymmetric vortices in the mixing chamber. The asymmetric flow pattern is amplified through two feedback tubes, causing one vortex to grow bigger and pushing the jet flow to the opposite wall. This behavior of vortex-jet interaction is repeated interchangeably between the two vortices, resulting in a sweeping jet. However, for the jet interaction type, two or more primary jets enter the confined geometry (interaction or mixing chamber) and collide with each other. Counter-rotating vortices are formed inside the interaction chamber. These vortical patterns create and drive the sweeping motion. The review starts with an introduction of the fluid dynamic theory of production of sweeping jets through the passive fluidic oscillators, followed by introducing different types and designs of various fluidic oscillators and their applications in fluid mechanics and heat transfer. The review of heat transfer using sweeping jets is divided into three sections including film cooling, impingement cooling, and other heat transfer schemes in heat exchangers and thermal actuations. A brief review of heat transfer in pulsating jets created by fluidic oscillators is also included.
{"title":"RECENT ADVANCES IN HEAT TRANSFER APPLICATIONS USING SWEEPING JET FLUIDIC OSCILLATORS","authors":"Ramy Abdelmaksoud, Ting Wang","doi":"10.1615/interjenercleanenv.2022041464","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022041464","url":null,"abstract":"The passive sweeping jet fluidic oscillators are a promising potential candidate in heat transfer applications such as gas turbine cooling, electronic components cooling, and heat exchanger enhancement component. This review presents a detailed discussion, summary, and comparison of the heat transfer studies on the sweeping jets. Sweeping jets can be created by two different fluidic oscillators types (i.e., wall-attachment type and jet interaction type). Those passive fluidic oscillators do not need a moving part nor active control to create sweeping jets. In the wall-attachment type, the fluid enters the fluidic oscillator, fills the cavity (mixing chamber and two feedback tubes), and a power jet is formed. Due to the inherent infinitesimal disturbances in the primary flow, when the flow enters the chamber, Coanda effect pushes the flow to one side, introducing two asymmetric vortices in the mixing chamber. The asymmetric flow pattern is amplified through two feedback tubes, causing one vortex to grow bigger and pushing the jet flow to the opposite wall. This behavior of vortex-jet interaction is repeated interchangeably between the two vortices, resulting in a sweeping jet. However, for the jet interaction type, two or more primary jets enter the confined geometry (interaction or mixing chamber) and collide with each other. Counter-rotating vortices are formed inside the interaction chamber. These vortical patterns create and drive the sweeping motion. The review starts with an introduction of the fluid dynamic theory of production of sweeping jets through the passive fluidic oscillators, followed by introducing different types and designs of various fluidic oscillators and their applications in fluid mechanics and heat transfer. The review of heat transfer using sweeping jets is divided into three sections including film cooling, impingement cooling, and other heat transfer schemes in heat exchangers and thermal actuations. A brief review of heat transfer in pulsating jets created by fluidic oscillators is also included.","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136092636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1615/interjenercleanenv.v24.i8.170
{"title":"INDEX VOLUME 24, 2023","authors":"","doi":"10.1615/interjenercleanenv.v24.i8.170","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.v24.i8.170","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67397958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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