Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications最新文献

A Predictive Equation of State to Perform an Extending Screening of Working Fluids for Power and Refrigeration Cycles 对动力和制冷循环的工作流体进行扩展筛选的状态预测方程

Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications Pub Date : 2020-04-20 DOI: 10.5772/intechopen.92173

Silvia Lasala, Andrés-Piña Martinez, J. Jaubert

引用次数: 0

A Recent Review in Performance of Organic Rankine Cycle (ORC) 有机朗肯循环(ORC)性能研究进展

Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications Pub Date : 2019-12-19 DOI: 10.5772/intechopen.89763

S. Saadon, S. Islam

引用次数: 5

Waste Heat Recovery from Fossil-Fired Power Plants by Organic Rankine Cycles 利用有机朗肯循环回收燃煤电厂的废热

Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications Pub Date : 2019-10-09 DOI: 10.5772/intechopen.89354

Qiang Liu

{"title":"Waste Heat Recovery from Fossil-Fired Power Plants by Organic Rankine Cycles","authors":"Qiang Liu","doi":"10.5772/intechopen.89354","DOIUrl":"https://doi.org/10.5772/intechopen.89354","url":null,"abstract":"More than 60% of the world ’ s electricity is still produced from fossil-fired power plants. Recovering heat from flue gas, drained water, and exhaust steam which are discharged in power plants by organic Rankine cycles (ORCs) to generate power is an efficient approach to reduce fossil fuel consumption and greenhouse gas emissions. This chapter proposes conceptual ORC systems for heat recovery of drain from continuous blowdown systems, exhaust flue gas from boilers, and exhaust steam from turbines. The waste heat source temperatures range from 30 to 200°C. Environmentally friendly and nonflammable working fluids including R134a, R1234ze, R236ea, R245fa, R1233zd, and R123 were selected as the working fluids. The parameters of ORC systems were optimized, and the thermodynamic performance was analyzed. The suitable ORC layouts for various kinds of heat sources including drained water, flue gas, and steam were discussed with selecting the proper working fluids. The gross power output of a coal-fired power plant can be increased up to 0.4% by an ORC using the waste heat from the boiler flue gas. The ORCs using turbine exhaust steam with the cooling water as low as 5°C can generate 2 – 3% more power for a power unit.","PeriodicalId":414934,"journal":{"name":"Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122311382","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}

引用次数: 8

The Development and Application of a Small-Scale Organic Rankine Cycle for Waste Heat Recovery 余热回收的小型有机朗肯循环的开发与应用

Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications Pub Date : 2019-09-23 DOI: 10.5772/intechopen.88208

T. Hung, Yongqiang Feng

{"title":"The Development and Application of a Small-Scale Organic Rankine Cycle for Waste Heat Recovery","authors":"T. Hung, Yongqiang Feng","doi":"10.5772/intechopen.88208","DOIUrl":"https://doi.org/10.5772/intechopen.88208","url":null,"abstract":"Power conversion systems based on organic Rankine cycles have been identified as a potential technology especially in converting low-grade waste heat into electricity as well as in small-scale biomass, solar, or geothermal power plants. The theoretical analysis can guide the ORC design, but cannot predict accurately the system performance. Actually, the operation characteristics of every component have a vital effect on the system performance. This chapter presents the detailed operation characteristic of a small-scale ORC. The effects of the operation parameters, the mixture working fluid and the operation strategy on system overall performance are addressed. It can be concluded that improving the system overall performance should give priority to increase the pressure drop. Whether the mixtures exhibit better thermodynamic performance than the pure working fluids depend on the operation parameters and mass fraction of mixtures. The mixture working fluids obtain a higher expander shaft power but a relatively higher BWR. The expander rotating speed for standalone operation strategy keeps rising from 2320 to 2983 rpm, whereas that of grid connect operation strategy keeps constant of 3600 rpm.","PeriodicalId":414934,"journal":{"name":"Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123784576","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}

引用次数: 0

Experimental Determination of Thermophysical Properties of Working Fluids for ORC Applications ORC应用中工质热物理性质的实验测定

Organic Rankine Cycles for Waste Heat Recovery - Analysis and Applications Pub Date : 2019-06-28 DOI: 10.5772/INTECHOPEN.87113

C. Coquelet, A. Valtz, P. Théveneau

引用次数: 6