This paper presents new experimental results from the DIEF prototype ejector chiller, which is operating since 2011 and has undergone several refinements, as discussed elsewhere. The prototype features a modified CRMC design of the ejector and a cooling power of a 40 kWf. The working fluid, R245fa, has favourable thermodynamic properties (e.g. dry expansion and moderate pressure at generator) and allows sub-zero temperatures at evaporator. Therefore, even if the prototype was designed for 5°C evaporation temperature, a set of low temperature tests has been carried on. The results show that the CRMC ejector chiller is rather flexible with respect to off-design conditions and, once specifically optimized, could be a candidate for sub-zero applications, unfeasible for water-lithium bromide absorption chillers.

Experimental Results from R245fa Ejector Chiller / J. Mahmoudian, A. Milazzo, I. Murmanskii, A. Rocchetti. - ELETTRONICO. - (2018), pp. 0-0. (Intervento presentato al convegno 8th Heat Powered Cycles Conference tenutosi a Bayreuth nel 17-19/9/2018).

Experimental Results from R245fa Ejector Chiller

MAHMOUDIAN, JAFAR;A. Milazzo
;
MURMANSKII, ILIA;A. Rocchetti;
2018

Abstract

This paper presents new experimental results from the DIEF prototype ejector chiller, which is operating since 2011 and has undergone several refinements, as discussed elsewhere. The prototype features a modified CRMC design of the ejector and a cooling power of a 40 kWf. The working fluid, R245fa, has favourable thermodynamic properties (e.g. dry expansion and moderate pressure at generator) and allows sub-zero temperatures at evaporator. Therefore, even if the prototype was designed for 5°C evaporation temperature, a set of low temperature tests has been carried on. The results show that the CRMC ejector chiller is rather flexible with respect to off-design conditions and, once specifically optimized, could be a candidate for sub-zero applications, unfeasible for water-lithium bromide absorption chillers.
2018
Proceedings of the Heat Powered Cycles Conference 2018
8th Heat Powered Cycles Conference
Bayreuth
17-19/9/2018
J. Mahmoudian, A. Milazzo, I. Murmanskii, A. Rocchetti
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1170364
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