Experimental testing of a small-scale two stage Organic Rankine Cycle engine operating at low temperature

Erika Ntavou, George Kosmadakis, Dimitris Manolakos, George Papadakis and Dimitris Papantonis

Energy, 2017, vol. 141, issue C, 869-879

Abstract: This paper presents the testing results, both at partial and full load operation of a prototype two-stage, heat-to-power conversion engine based on the Organic Rankine Cycle with net capacity of 10 kWe at 130 °C. This engine has been developed to operate in a wide range of thermal load input, coming from thermal sources of variable heat supply. The intense fluctuation of the temperature and heat input dictates the use of a two-stage engine, so that the operation becomes flexible and efficient even at low thermal load. For the two-stage expansion, two scroll expanders have been connected in series with the first expander by-passed at low heat input.

Keywords: Two-stage ORC; Expansion efficiency; Heat to power conversion; Energy efficiency (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:141:y:2017:i:c:p:869-879

DOI: 10.1016/j.energy.2017.09.127

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