Journal of Siberian Federal University. Engineering & Technologies / An Application of CO₂ as a Refrigerant for Medium Temperature Heat Pumps

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2021 14 (6)
Authors
Karnaukh, Viktoriia V.
Contact information
Karnaukh, Viktoriia V.: Tugan-Baranovsky Donetsk National University of Economics and Trade Donetsk;
Keywords
CO₂ heat pump; exergy; exergy balance; coefficient of performance; exergy losses (destruction)
Abstract

This paper presents the energetic and exergetic analysis of a transcritical carbon dioxide based heat pump cycle for heating. Recycled water (tw=25…40 °C) of food production enterprises is taken into account as a source of low potential heat. The theoretical and real CO₂ trans-critical cycles were analysed. Parameters, which characterize cycles from energy and exergy point of view were obtained. The exergy flow diagram (Grassmann diagram) shows that all the components except the internal heat exchanger contribute significantly to the irreversibilities of the system

Pages
703–713
DOI
10.17516/1999–494X‑0344
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/144272

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