The recent regulations about ﬂuorinated greenhouse gases introduce a rapid phase-down of traditional, environmentally harmful refrigerants. Consequently, new working ﬂuids are continuously appearing on the market, leading to the need for testing them to analyse their performance before making an ultimate choice. In the present paper, a test rig built to carry out experimental studies on diﬀerent refrigerant in a drop-in application is described and ﬁrst results for the set-up commissioning are commented. The experimental campaign was carried out in typical water-to-water heat pump operating conditions, varying the cold water temperature at evaporator inlet from 10 °C to 20 °C, with a step of 2.5 °C, and hot water temperature at condenser inlet from 30 °C to 50 °C, with a step of 10 °C, and the compressor shaft rotational frequency from 30 Hz to 80 Hz, with a step of 10 Hz. The ﬁrst ﬁndings demonstrate that the experimental results of some key performance parameters, namely heating capacity, COP and compressor volumetric eﬃciency, agree well with open literature trends, allowing to state that the experimental facility was correctly designed and can be used to deepen the analysis on performance assessment of new refrigerants in a drop-in application.
|Titolo:||Design and commissioning of an experimental facility for performance evaluation of pure and mixed refrigerants|
|Data di pubblicazione:||2019|
|Appare nelle tipologie:||01.1 Articolo in Rivista|
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|Design and commissioning of an experimental facility for performance evaluation of pure and mixed refrigerants.pdf||Articolo principale||PDF editoriale||Accesso apertoVisualizza/Apri|