 Thermodynamic analysis of Organic Rankine Cycle with EjectorXinguo Li, Cuicui Zhao and Xiaochen Hu Energy, 2012, vol. 42, issue 1, 342-349 Abstract: The low efficiency of Organic Rankine Cycle (ORC) with low-grade heat source (LGHS) has limited its use in industry. In order to increase the power output capacity and its efficiency, an Organic Rankine Cycle with Ejector (EORC) was proposed in this paper. In the EORC, an ejector and a second-stage evaporator were added to the ORC. The vapor from the second-stage evaporator worked as the primary fluid for the ejector, to suck the exhaust from the expander so as to decrease the expander backpressure and increase the pressure difference through the expander, which resulted in an increase of the power output capacity. A Double Organic Rankine Cycle (DORC) was also introduced in order to analyze and compare the EORC with the ORC and DORC in the thermal performance. The output capacity was increased by EORC and DORC compared to the ORC. The thermal performance of DORC was superior to EORC, but another expander-generator and its auxiliary equipments were required for the DORC led to increase the investment and operation management compared to the EORC. Keywords: Organic Rankine Cycle (ORC); Organic Rankine Cycle with Ejector (EORC); Double Organic Rankine Cycle (DORC); Ejector; Low-grade heat source (LGHS) (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:42:y:2012:i:1:p:342-349 DOI: 10.1016/j.energy.2012.03.047 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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