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Testing of R245fa and R1233zd(E) in a high temperature waste heat recovery application utilizing a scroll expander.

Number: pap. n. 1140

Author(s) : LAVERNIA A. C., ZIVIANI D., GAFUR N., et al.

Summary

This is the 18 slide PowerPoint presentation of Lavernia, Ziviani and Garfur's paper on the use of R245fa and R1233zd(E) in a high temperature waste heat recovery application.

An organic Rankine cycle (ORC) test setup for high-temperature waste-heat-recovery applications was constructed. The test setup was used to conduct an experimental study of a subcritical ORC architecture working with a high temperature gaseous heat source of approximately 10 kW and to evaluate the feasibility of employing an ORC to recover waste heat from small-scale internal combustion engines. The market affordability of all components including a prototype scroll expander, which contributes heavily to the cycle design, is considered. The cycle consists of a diaphragm pump, a plate heat exchanger as a regenerator, a novel micro-tube evaporator, an air-cooled condenser, and a scroll-type expander. Three expander prototypes of Oldham ring orbiting, idler shaft orbiting, and spinning scroll were evaluated for their performance within this ORC. Focus was given to constraining the high-side temperatures of R1233zd(E) due to its limited thermal stability while decreasing exergy destruction. In this work, a performance comparison between R245fa and R1233zd(E) for varying thermal inputs, expander types, and refrigerant superheating values is reported.

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  • Original title: Testing of R245fa and R1233zd(E) in a high temperature waste heat recovery application utilizing a scroll expander.
  • Record ID : 30024967
  • Languages: English
  • Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
  • Publication date: 2018/09

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