Pub Date : 2022-01-01DOI: 10.1615/interjenercleanenv.2023045417
P. Strakey, T. Sidwell
{"title":"Design and Modeling of an 80 bar Oxy-Combustor for Direct Fired Supercritical CO2 Applications","authors":"P. Strakey, T. Sidwell","doi":"10.1615/interjenercleanenv.2023045417","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023045417","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67395200","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2023045420
M. Yip
{"title":"Effects of additively manufactured surface roughness on small diameter plenums with multiple side discharges for high temperature gas turbine blade cooling applications","authors":"M. Yip","doi":"10.1615/interjenercleanenv.2023045420","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2023045420","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67395435","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022044132
G. Saini, A. De
Darrieus rotor is a promising technology for hydrokinetic and wind energy harvesting applications. However, the Darrieus rotor suffers from the problem of poor starting performance. The present research highlights solutions to improve the poor starting performance of the Darrieus rotor by introducing the hybrid rotor. Further, a comparative performance evaluation of conventional vertical axis Darrieus and hybrid rotors has been investigated numerically. The most widely used S-series S-1046 hydrofoil has been utilized by hybrid and Darrieus rotors. Further, two semicircular blades are used for the Savonius part of the hybrid rotor. The size of the Savonius part is optimized to obtain maximum performance from the hybrid rotor. Analyzing the flow field distributions across the turbine vicinity has highlighted various possible reasons. The study results have demonstrated that the hybrid rotor yields an exceptional increment of about 159.41% in the torque coefficient under low tip speed ratio (TSR) regimes (during initial starting) compared to the Darrieus rotor. However, due to the Savonius rotor's presence, the hybrid rotor's maximum power coefficient is reduced slightly compared to the maximum operating point of the Darrieus rotor. Further, the hybrid rotor yields a wider operating range than the single maximum operating point by the Darrieus rotor. The present investigations will assist the designers in selecting the site-specific hydrokinetic technology suitable for efficient and optimum use of hydrokinetic potential.
{"title":"On the Self-Starting Comparative Performance Evaluation of Darrieus and Hybrid Hydrokinetic Rotor","authors":"G. Saini, A. De","doi":"10.1615/interjenercleanenv.2022044132","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022044132","url":null,"abstract":"Darrieus rotor is a promising technology for hydrokinetic and wind energy harvesting applications. However, the Darrieus rotor suffers from the problem of poor starting performance. The present research highlights solutions to improve the poor starting performance of the Darrieus rotor by introducing the hybrid rotor. Further, a comparative performance evaluation of conventional vertical axis Darrieus and hybrid rotors has been investigated numerically. The most widely used S-series S-1046 hydrofoil has been utilized by hybrid and Darrieus rotors. Further, two semicircular blades are used for the Savonius part of the hybrid rotor. The size of the Savonius part is optimized to obtain maximum performance from the hybrid rotor. Analyzing the flow field distributions across the turbine vicinity has highlighted various possible reasons. The study results have demonstrated that the hybrid rotor yields an exceptional increment of about 159.41% in the torque coefficient under low tip speed ratio (TSR) regimes (during initial starting) compared to the Darrieus rotor. However, due to the Savonius rotor's presence, the hybrid rotor's maximum power coefficient is reduced slightly compared to the maximum operating point of the Darrieus rotor. Further, the hybrid rotor yields a wider operating range than the single maximum operating point by the Darrieus rotor. The present investigations will assist the designers in selecting the site-specific hydrokinetic technology suitable for efficient and optimum use of hydrokinetic potential.","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67393634","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022043949
Addisu Emma, Sathyabhama Alangar, A. Yadav
{"title":"Extraction and characterization of biodiesel derived from the coffee husk, and its effect on diesel engine performance and emission characteristics","authors":"Addisu Emma, Sathyabhama Alangar, A. Yadav","doi":"10.1615/interjenercleanenv.2022043949","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022043949","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67393879","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022045186
Andrey Kuzmin, V. Pinchuk
{"title":"Environmental engineering, innovations, and management. Editorial Review","authors":"Andrey Kuzmin, V. Pinchuk","doi":"10.1615/interjenercleanenv.2022045186","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022045186","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67394539","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022038082
Rahul Singh, Sanjeev Kumar, Bhusan Gautam
{"title":"Assessment of wind power at various height using Weibull parameters at four selected locations","authors":"Rahul Singh, Sanjeev Kumar, Bhusan Gautam","doi":"10.1615/interjenercleanenv.2022038082","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022038082","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67390909","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022040746
M. Hamdan, J. Al Asfar, Heba Al-Mashaqbeh
{"title":"Energy Management in Buildings Using Phase Change Material","authors":"M. Hamdan, J. Al Asfar, Heba Al-Mashaqbeh","doi":"10.1615/interjenercleanenv.2022040746","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022040746","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67392266","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022041661
Fahd Abdelmouiz Ziari, A. Benslama, Ferkous Khaled
{"title":"NUMERICAL SOLUTION FOR A CONVECTIVE-RADIATIVE STRAIGHT LONGITUDIAL FIN WITH VARIABLE THERMAL CHARACTERISTICS AND NONLINEAR BOUNDARY CONDITIONS","authors":"Fahd Abdelmouiz Ziari, A. Benslama, Ferkous Khaled","doi":"10.1615/interjenercleanenv.2022041661","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022041661","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67392344","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022044781
G. Marchenko, A. Smikhula
In the work the possibility and principles of partial or complete replacement of natural gas as a fuel with hydrogen and its mixtures with methane (or natural gas) in new and existing boilers and furnaces with a capacity of approximately 0.3-60 MWare determined. The performed calculation showed the possibility of using one diffusion burner on natural gas, hydrogen, or their mixture in any proportion and the thermal power of the burner on methane (or natural gas) and hydrogen or their mixture at the same gas pressure is close. The use of condensing boilers is preferable due to the greater amount of thermal energy (as a percentage of heat output in firebox) that is obtained by condensing water vapor from flue gases when burning hydrogen compared to burning methane (or natural gas) is showed. Some constructions of burners and boilers for burning hydrogen and its mixtures with methane (or natural gas) are proposed. The difference in specific losses during hydrogen transportation by gas pipelines for methane (or natural gas) are determined; when pure hydrogen was supplied into gas pipelines for natural gas, its leakage per unit time (m3/s) will be near 2.8 times higher, but the amount of energy lost will be less by approximately 9.2%.
{"title":"Features of Combustion of Hydrogen and Its Mixtures with Methane (or Natural Gas) in Boilers and Furnaces","authors":"G. Marchenko, A. Smikhula","doi":"10.1615/interjenercleanenv.2022044781","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022044781","url":null,"abstract":"In the work the possibility and principles of partial or complete replacement of natural gas as a fuel with hydrogen and its mixtures with methane (or natural gas) in new and existing boilers and furnaces with a capacity of approximately 0.3-60 MWare determined. The performed calculation showed the possibility of using one diffusion burner on natural gas, hydrogen, or their mixture in any proportion and the thermal power of the burner on methane (or natural gas) and hydrogen or their mixture at the same gas pressure is close. The use of condensing boilers is preferable due to the greater amount of thermal energy (as a percentage of heat output in firebox) that is obtained by condensing water vapor from flue gases when burning hydrogen compared to burning methane (or natural gas) is showed. Some constructions of burners and boilers for burning hydrogen and its mixtures with methane (or natural gas) are proposed. The difference in specific losses during hydrogen transportation by gas pipelines for methane (or natural gas) are determined; when pure hydrogen was supplied into gas pipelines for natural gas, its leakage per unit time (m3/s) will be near 2.8 times higher, but the amount of energy lost will be less by approximately 9.2%.","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67394017","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 : 2022-01-01DOI: 10.1615/interjenercleanenv.2022045212
Abhishek Sharma, A. De, Sunil Kumar
{"title":"Assessment of Statistical and Kinetics based models for LOx-Methane Green Propellant Combustion","authors":"Abhishek Sharma, A. De, Sunil Kumar","doi":"10.1615/interjenercleanenv.2022045212","DOIUrl":"https://doi.org/10.1615/interjenercleanenv.2022045212","url":null,"abstract":"","PeriodicalId":38729,"journal":{"name":"International Journal of Energy for a Clean Environment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67394221","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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