Thermodynamic investigation of organic Rankine cycle energy recovery system and recent studies

Thermal Science

Koten Hasan¹  Boydak Ozlem¹  Yilmaz Mustafa²  Ekmekci Ismail³ 

[1] Istanbul Medeniyet University, Kuzey Kampüsü Unalan, Uskudar, Istanbul, Turkey;Marmara University, Göztepe Kampüsü Kadıköy, Istanbul, Turkey;İstanbul Ticaret University, Küçükyalı Kampüsü, Küçükyalı, Istanbul, Turkey;

关键词: Organic Rankine cycle;    energy recovery;    energy efficiency;    energy recovery system;   

DOI  :  10.2298/TSCI170720103B

来源: DOAJ

【 摘 要 】

Recently, new environment-friendly energy conversion technologies are required for using energy resources valid to power generation. Accordingly, low-grade heat sources as solar heat, geothermal energy, and waste heat, which have available temperatures ranging between 60 and 200°C, are supposed as applicants for recent new generation energy resources. As an alternative energy source, such low-grade heat sources usage generating electricity with the help of power turbine cycles was examined through this study. Such systems have existing technologies applicable at low temperatures and a compact structure at low cost, however, these systems have a low thermal efficiency of the Rankine cycles operated at low temperatures. An organic Rankine cycle is alike to a conventional steam power plant, except the working fluid, which is an organic, high molecular mass fluid with a liquid-vapor phase change, or boiling point, at a lower temperature than the water-steam phase change. The efficiency of an organic Rankine cycle is about between 10% and 20%, depending on temperature levels and availability of a valid fluid.

【 授权许可】

Unknown