Pub Date : 2023-06-28DOI: 10.14716/ijtech.v14i4.5188
R. Kartika, A. H. Ritonga, L. Sulastri, Siti Nurliana, Deddy Irawan, P. Simanjuntak
. Scenedesmus sp. is a freshwater green alga that functions as an ionic biosorbent and can also be a bioindicator for water contaminated with hexavalent chromium Cr(VI) ion. This study aimed to observe the growth of Scenedesmus sp. exposed to Cr(VI) ion at various concentrations and analyze the remaining Cr(VI) ion that did not undergo biosorption by microalgae. This research was conducted on Scenedesmus sp. microalgae growth media using five bioreactors, each with a different Cr(VI) ion exposure concentration. The remaining ion in the growth media was analyzed for its concentration with an ultraviolet-visible spectrophotometer at time variations with an interval of two days. Maximum biosorption with exposure to Cr(VI) occurred at a concentration of 1.0 ppm on day 12 of 99.93%. At concentrations of 5.0 ppm and 7.0 ppm, microalgae growth was very poor, indicating the medium was toxic.
{"title":"Biosorption of Hexavalent Chromium Cr(VI) using Microalgae Scenedesmus sp as Environmental Bioindicator","authors":"R. Kartika, A. H. Ritonga, L. Sulastri, Siti Nurliana, Deddy Irawan, P. Simanjuntak","doi":"10.14716/ijtech.v14i4.5188","DOIUrl":"https://doi.org/10.14716/ijtech.v14i4.5188","url":null,"abstract":". Scenedesmus sp. is a freshwater green alga that functions as an ionic biosorbent and can also be a bioindicator for water contaminated with hexavalent chromium Cr(VI) ion. This study aimed to observe the growth of Scenedesmus sp. exposed to Cr(VI) ion at various concentrations and analyze the remaining Cr(VI) ion that did not undergo biosorption by microalgae. This research was conducted on Scenedesmus sp. microalgae growth media using five bioreactors, each with a different Cr(VI) ion exposure concentration. The remaining ion in the growth media was analyzed for its concentration with an ultraviolet-visible spectrophotometer at time variations with an interval of two days. Maximum biosorption with exposure to Cr(VI) occurred at a concentration of 1.0 ppm on day 12 of 99.93%. At concentrations of 5.0 ppm and 7.0 ppm, microalgae growth was very poor, indicating the medium was toxic.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"62 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86124922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-28DOI: 10.14716/ijtech.v14i4.5581
Dian Retno Sari Dewi, Y. Hermanto, S. Pittayachawan, Elizabeth Tait
. Product – service systems (PSS) has become a major subject of concern for many industries because of their benefits and the possibilities to reduce negative environmental impacts and address environmental sustainability concerns. Despite the benefits of PSS, little empirical research has been conducted to investigate the PSS supply chain (SC) capabilities constructs. This study offers original contributions to the valid and reliable construct and instrument development to measure the PSS SC capabilities. A systematic approach was employed to develop and validate an instrument for evaluating the PSS SC capabilities. This comprises specifying domains of constructs, generating a sample of items, conducting interrater agreement analysis, testing non-response bias, and assessing the instrument using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The validity of the proposed model was tested using structural equation modeling based on a large-scale online survey from 447 participants working for motorcycle service partners. The result shows seven distinctive PSS SC capabilities constructs, namely knowledge assessment, partner development, co-evolving, reflexive control, re-conceptualization, innovative service delivery, and sustainable product – service capability. The development of the instrument contributes a validated tool for companies to measure their PSS SC capabilities.
{"title":"Assessing the Product–Service Systems Supply Chain Capabilities: Construct and Instrument Development","authors":"Dian Retno Sari Dewi, Y. Hermanto, S. Pittayachawan, Elizabeth Tait","doi":"10.14716/ijtech.v14i4.5581","DOIUrl":"https://doi.org/10.14716/ijtech.v14i4.5581","url":null,"abstract":". Product – service systems (PSS) has become a major subject of concern for many industries because of their benefits and the possibilities to reduce negative environmental impacts and address environmental sustainability concerns. Despite the benefits of PSS, little empirical research has been conducted to investigate the PSS supply chain (SC) capabilities constructs. This study offers original contributions to the valid and reliable construct and instrument development to measure the PSS SC capabilities. A systematic approach was employed to develop and validate an instrument for evaluating the PSS SC capabilities. This comprises specifying domains of constructs, generating a sample of items, conducting interrater agreement analysis, testing non-response bias, and assessing the instrument using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The validity of the proposed model was tested using structural equation modeling based on a large-scale online survey from 447 participants working for motorcycle service partners. The result shows seven distinctive PSS SC capabilities constructs, namely knowledge assessment, partner development, co-evolving, reflexive control, re-conceptualization, innovative service delivery, and sustainable product – service capability. The development of the instrument contributes a validated tool for companies to measure their PSS SC capabilities.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"73 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82875103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-28DOI: 10.14716/ijtech.v14i4.5908
F. Trapsilawati, Fan Li, Liu Yisi
. The latest global air traffic shows a positive sign of a tremendous recovery in worldwide air traffic post-pandemic. This paper aims at providing a systematic literature review on air traffic conflict detection and resolution (CDR) in air traffic control (ATC) from ergonomics perspectives and developing a framework underlying the CDR processes to retort the bounce-back of air traffic density. A preferred reporting item for systematic reviews and meta-analyses (PRISMA) was adopted to conduct the review of prior publications in ATC CDR. Based on the 35 literatures reviewed, a framework of CDR is produced highlighting the key aspects of ATC as a sociotechnical system including humans, environment, interface/system, and task. The present study also sheds light on future research directions covering acceleration of ATC proficiency, design of ATC systems, analysis of global traffic patterns, ATC automation transparency, and task designs to enhance air traffic safety and efficiency. The take-away points from the growing body of literatures on ATC CDR are discussed further in this paper.
{"title":"Ergonomics Considerations in Air Traffic Conflict Detection and Resolution","authors":"F. Trapsilawati, Fan Li, Liu Yisi","doi":"10.14716/ijtech.v14i4.5908","DOIUrl":"https://doi.org/10.14716/ijtech.v14i4.5908","url":null,"abstract":". The latest global air traffic shows a positive sign of a tremendous recovery in worldwide air traffic post-pandemic. This paper aims at providing a systematic literature review on air traffic conflict detection and resolution (CDR) in air traffic control (ATC) from ergonomics perspectives and developing a framework underlying the CDR processes to retort the bounce-back of air traffic density. A preferred reporting item for systematic reviews and meta-analyses (PRISMA) was adopted to conduct the review of prior publications in ATC CDR. Based on the 35 literatures reviewed, a framework of CDR is produced highlighting the key aspects of ATC as a sociotechnical system including humans, environment, interface/system, and task. The present study also sheds light on future research directions covering acceleration of ATC proficiency, design of ATC systems, analysis of global traffic patterns, ATC automation transparency, and task designs to enhance air traffic safety and efficiency. The take-away points from the growing body of literatures on ATC CDR are discussed further in this paper.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"271 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77546365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-28DOI: 10.14716/ijtech.v14i4.4240
R. Riyanto, M. Jazuli, I. Sahroni, M. M. Musawwa, Nahar Cahyandaru, E. Wahyuni
. This study aims to conserve the underwater cannonball before storing it in a museum. Removing the protective crust of iron artifacts without the correct and proper method can cause rapid corrosion. To prevent damage, artifacts must be conserved in the right solution. Conservation was conducted in four stages during this research project. The first stage is the identification of weathering, and the second stage is the analysis and characterization of the corroded surface using a microscope, XRD (X-ray diffraction), XRF (X-ray fluorescence), and SEM (scanning electron microscopy). The third stage is the passivation/deactivation process, achieved using sodium hydroxide, soapy water and kaffir lime water. The fourth stage is stabilizing/coating the iron cannonball underwater heritage materials as soon as possible using microcrystalline wax to prevent further corrosion. This stage should solve the conservation problems associated with the object so that the object can last for a long time. Dry and wet-activated corrosion was characterized by applying XRD to the obtained mineral akageneite. The akageneite minerals were actively corroded and contained high concentrations of Cl atoms revealing dry and wet activated corrosion of 66.60% and 64.96%, respectively. After being conserved with several steps and NaOH, soapy water and kaffir lime water, inactive corrosion was observed. Based on the results of the analysis performed with XRF, the cannonball does not contain Cl, and the Fe content is 98.99%. The conservation method used in this research is excellent and appropriate for conserving cultural heritage materials, including underwater iron cannonballs.
{"title":"A Simple Technique for the Corrosion Inhibition of Underwater Cannonball from a Shipwreck","authors":"R. Riyanto, M. Jazuli, I. Sahroni, M. M. Musawwa, Nahar Cahyandaru, E. Wahyuni","doi":"10.14716/ijtech.v14i4.4240","DOIUrl":"https://doi.org/10.14716/ijtech.v14i4.4240","url":null,"abstract":". This study aims to conserve the underwater cannonball before storing it in a museum. Removing the protective crust of iron artifacts without the correct and proper method can cause rapid corrosion. To prevent damage, artifacts must be conserved in the right solution. Conservation was conducted in four stages during this research project. The first stage is the identification of weathering, and the second stage is the analysis and characterization of the corroded surface using a microscope, XRD (X-ray diffraction), XRF (X-ray fluorescence), and SEM (scanning electron microscopy). The third stage is the passivation/deactivation process, achieved using sodium hydroxide, soapy water and kaffir lime water. The fourth stage is stabilizing/coating the iron cannonball underwater heritage materials as soon as possible using microcrystalline wax to prevent further corrosion. This stage should solve the conservation problems associated with the object so that the object can last for a long time. Dry and wet-activated corrosion was characterized by applying XRD to the obtained mineral akageneite. The akageneite minerals were actively corroded and contained high concentrations of Cl atoms revealing dry and wet activated corrosion of 66.60% and 64.96%, respectively. After being conserved with several steps and NaOH, soapy water and kaffir lime water, inactive corrosion was observed. Based on the results of the analysis performed with XRF, the cannonball does not contain Cl, and the Fe content is 98.99%. The conservation method used in this research is excellent and appropriate for conserving cultural heritage materials, including underwater iron cannonballs.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"50 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80521969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-28DOI: 10.14716/ijtech.v14i4.5169
E. Sulistiawati, R. Rochmadi, M. Hidayat, A. Budiman
. Phycocyanin (PC) is a bioactive compound that can function as an antioxidant, anti-inflammatory, immunomodulatory, and anti-cancer agent. It can act as a potential material in preventing COVID-19 and curing those suffering from it. Spirulina platensis (SP) is one of the microalgae rich in proteins and PC. This study aimed to determine the optimum PC extraction from SP, using distilled water as solvent through freezing-thawing pre-treatment. The variables set in the investigation were water content in SP before freezing (24.7-84.9 % wet basis), soaking time (0.25, 1, 2, and 6 hours), raw materials’ storage period (1 -13 months), freezing time (1-141 days), and the (solvent/biomass) ratio (20-440 mL/g). Spirulina platensis powder was soaked, frozen, thawed, and extracted in batch operation. The residue was extracted with the same solvent. The PC concentration in the filtrate was determined by measuring its absorbance using a spectrophotometer at wavelengths 615 and 652 nm. The experiment gave the optimum yield at a water content of 81.9% (wet basis), soaking time of 6 hours, freezing time of 1 day, and a solvent-to-biomass ratio of 100 mL/g. The optimum storage period of the raw material was one month. The phycocyanin IC 50 value of 1.485 mg/L.
{"title":"Enhancement of Phycocyanin Extraction from Dry Spirulina platensis Powder by Freezing-Thawing Pre-treatment","authors":"E. Sulistiawati, R. Rochmadi, M. Hidayat, A. Budiman","doi":"10.14716/ijtech.v14i4.5169","DOIUrl":"https://doi.org/10.14716/ijtech.v14i4.5169","url":null,"abstract":". Phycocyanin (PC) is a bioactive compound that can function as an antioxidant, anti-inflammatory, immunomodulatory, and anti-cancer agent. It can act as a potential material in preventing COVID-19 and curing those suffering from it. Spirulina platensis (SP) is one of the microalgae rich in proteins and PC. This study aimed to determine the optimum PC extraction from SP, using distilled water as solvent through freezing-thawing pre-treatment. The variables set in the investigation were water content in SP before freezing (24.7-84.9 % wet basis), soaking time (0.25, 1, 2, and 6 hours), raw materials’ storage period (1 -13 months), freezing time (1-141 days), and the (solvent/biomass) ratio (20-440 mL/g). Spirulina platensis powder was soaked, frozen, thawed, and extracted in batch operation. The residue was extracted with the same solvent. The PC concentration in the filtrate was determined by measuring its absorbance using a spectrophotometer at wavelengths 615 and 652 nm. The experiment gave the optimum yield at a water content of 81.9% (wet basis), soaking time of 6 hours, freezing time of 1 day, and a solvent-to-biomass ratio of 100 mL/g. The optimum storage period of the raw material was one month. The phycocyanin IC 50 value of 1.485 mg/L.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"38 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85459622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-09DOI: 10.14716/ijtech.v14i3.5639
Charli Sitinjak, R. Ismail, R. Fajar, E. Bantu, L. Shalahuddin, Siti Yubaidah, W. F. Simanullang, V. Šimić
. The huge automotive industry in Indonesia has had a major impact on the environment and health caused by ELV. An ELV is a vehicle that has reached the end of life due to age or cannot be reused because of accidents and high repair costs. The absence of procedures and laws in Indonesia related to the driving of this vehicle resulted in the dismantling of ELV, and its management was carried out on an original and unstructured basis. As a result, emissions of gases and toxic substances are released into the environment. To reduce this problem, implementing ELV management must be done. Implementing this ELV policy requires the cooperation of all stakeholders (government, automotive industry, and the community). Therefore, this study aims to understand the laws related to ELV and its implementation in neighboring countries and explore public perceptions of ELV management in Indonesia. The study was divided into two phases. The first phase reviewed literature related to ELV laws, and the second was surveyed with questionnaires. The results obtained from this research show that public awareness and acceptance of the application of ELV are still very low. In addition, the regulations that have been applied to check the feasibility of vehicles are proven unable to cut down the number of old vehicles.
{"title":"An Analysis of End-of-Life Vehicle Management in Indonesia from the Perspectives of Regulation and Social Opinion","authors":"Charli Sitinjak, R. Ismail, R. Fajar, E. Bantu, L. Shalahuddin, Siti Yubaidah, W. F. Simanullang, V. Šimić","doi":"10.14716/ijtech.v14i3.5639","DOIUrl":"https://doi.org/10.14716/ijtech.v14i3.5639","url":null,"abstract":". The huge automotive industry in Indonesia has had a major impact on the environment and health caused by ELV. An ELV is a vehicle that has reached the end of life due to age or cannot be reused because of accidents and high repair costs. The absence of procedures and laws in Indonesia related to the driving of this vehicle resulted in the dismantling of ELV, and its management was carried out on an original and unstructured basis. As a result, emissions of gases and toxic substances are released into the environment. To reduce this problem, implementing ELV management must be done. Implementing this ELV policy requires the cooperation of all stakeholders (government, automotive industry, and the community). Therefore, this study aims to understand the laws related to ELV and its implementation in neighboring countries and explore public perceptions of ELV management in Indonesia. The study was divided into two phases. The first phase reviewed literature related to ELV laws, and the second was surveyed with questionnaires. The results obtained from this research show that public awareness and acceptance of the application of ELV are still very low. In addition, the regulations that have been applied to check the feasibility of vehicles are proven unable to cut down the number of old vehicles.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"113 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80528498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-09DOI: 10.14716/ijtech.v14i3.6000
Karol Yuliete Ravelo-Mendivelso, M. Villate-Fonseca, J. D. Hernández-Vásquez, Orlando Miguel Miranda-Samper, Pedro Jessid Pacheco-Torres, Manuel J. Campuzano
. The goal of this work is to identify the best alternatives that allow for improving the thermal efficiency of a shell and tube heat exchanger in real operating conditions. The main motivation for carrying out the research is based on the need identified, together with the oil, natural gas, and alternative energy industry, to analyze and learn about the main criteria that directly impact the thermal efficiency of a heat exchanger. The applied methodology was based on the AHP (Analytic Hierarchy Process) multicriteria method. Three relevant criteria were identified: Thermodynamic, Hydrodynamic, and Economic. Additionally, a complete analysis of 9 sub-criteria (i.e. energy and exergetic analysis of the process, analysis of the thermodynamic properties of the fluids; pressure drop, volumetric flow of hot and cold fluids; energy costs, maintenance, operation and geometry of the heat exchanger) allowed us to conclude that the best strategy to increase the thermal efficiency of a heat exchanger in real operating conditions consists of using innovative online cleaning prototypes that use abrasive spheres. This will allow the heat exchanger to be cleaned simultaneously with its operation, reducing downtime and maintenance times/costs.
{"title":"Thermal and Hydrodynamic Performance Analysis of a Shell and Tube Heat Exchanger Using the AHP Multicriteria Method","authors":"Karol Yuliete Ravelo-Mendivelso, M. Villate-Fonseca, J. D. Hernández-Vásquez, Orlando Miguel Miranda-Samper, Pedro Jessid Pacheco-Torres, Manuel J. Campuzano","doi":"10.14716/ijtech.v14i3.6000","DOIUrl":"https://doi.org/10.14716/ijtech.v14i3.6000","url":null,"abstract":". The goal of this work is to identify the best alternatives that allow for improving the thermal efficiency of a shell and tube heat exchanger in real operating conditions. The main motivation for carrying out the research is based on the need identified, together with the oil, natural gas, and alternative energy industry, to analyze and learn about the main criteria that directly impact the thermal efficiency of a heat exchanger. The applied methodology was based on the AHP (Analytic Hierarchy Process) multicriteria method. Three relevant criteria were identified: Thermodynamic, Hydrodynamic, and Economic. Additionally, a complete analysis of 9 sub-criteria (i.e. energy and exergetic analysis of the process, analysis of the thermodynamic properties of the fluids; pressure drop, volumetric flow of hot and cold fluids; energy costs, maintenance, operation and geometry of the heat exchanger) allowed us to conclude that the best strategy to increase the thermal efficiency of a heat exchanger in real operating conditions consists of using innovative online cleaning prototypes that use abrasive spheres. This will allow the heat exchanger to be cleaned simultaneously with its operation, reducing downtime and maintenance times/costs.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"20 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89810478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-09DOI: 10.14716/ijtech.v14i3.5437
E. Widodo, Furqon Sandiva Utomo Putra, D. Hartanto, N. Arvitrida, A. Bagastyo, I. Warmadewanthi, T. Soehartanto
{"title":"Analysis of Bittern Recovery Facility Using Mixed-Integer Nonlinear Programming: Centralized, Decentralized, and Hybrid Scenarios","authors":"E. Widodo, Furqon Sandiva Utomo Putra, D. Hartanto, N. Arvitrida, A. Bagastyo, I. Warmadewanthi, T. Soehartanto","doi":"10.14716/ijtech.v14i3.5437","DOIUrl":"https://doi.org/10.14716/ijtech.v14i3.5437","url":null,"abstract":"","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"48 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73579182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-09DOI: 10.14716/ijtech.v14i3.5803
D. G. Cendrawati, N. Hesty, B. Pranoto, A. Aminuddin, A. Kuncoro, A. Fudholi
. This study presents the performance of the Weather Research and Forecasting (WRF) with the 5-km horizontal grid as a tool for wind energy forecasting within and along the Indonesian coast for the next 72 hours. The modeled data is then validated using wind measurements from the meteorological mast in East Sumba at several heights. Global Forecast System (GFS) operational forecasting data with a resolution of 0.25 degrees are used as the initial and boundary conditions (IC/BC) model. The findings demonstrate that wind speed and wind power density are much higher above ground level (50 m) than at ground level (10 m) and are significantly higher towards the shore than inland. The model slightly overpredicts low-level wind speeds. The results suggest that the WRF model is feasible for forecasting Indonesia's wind flow and wind energy.
{"title":"Short-Term Wind Energy Resource Prediction Using Weather Research Forecasting Model for a Location in Indonesia","authors":"D. G. Cendrawati, N. Hesty, B. Pranoto, A. Aminuddin, A. Kuncoro, A. Fudholi","doi":"10.14716/ijtech.v14i3.5803","DOIUrl":"https://doi.org/10.14716/ijtech.v14i3.5803","url":null,"abstract":". This study presents the performance of the Weather Research and Forecasting (WRF) with the 5-km horizontal grid as a tool for wind energy forecasting within and along the Indonesian coast for the next 72 hours. The modeled data is then validated using wind measurements from the meteorological mast in East Sumba at several heights. Global Forecast System (GFS) operational forecasting data with a resolution of 0.25 degrees are used as the initial and boundary conditions (IC/BC) model. The findings demonstrate that wind speed and wind power density are much higher above ground level (50 m) than at ground level (10 m) and are significantly higher towards the shore than inland. The model slightly overpredicts low-level wind speeds. The results suggest that the WRF model is feasible for forecasting Indonesia's wind flow and wind energy.","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":"19 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80682389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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