Air-source heat pump performance comparison in different real operational conditions based on advanced exergy and exergoeconomic approach
نویسندگان
چکیده
The use of air-source heat pumps (ASHP) is increasing to meet the energy needs residential buildings, and manufacturers equipment have permanently expanded range work improved efficiency in very adverse outdoor air conditions. However, time a wide different technologies, problem using ASHP, from techno-economic point view, constantly present. Exergetic exergoeconomic cost no longer provide sufficiently reliable information when it necessary reduce investment costs or in-crease energy/exergetic component/system. This paper presents comparison ASHP operational conditions based on an advanced exergy approach. analysis splits destruction for each individual component into avoidable unavoidable part order fully understand processes. stream used calculate variables associated with system component. Irreversibility compressor greatest impact reducing overall exergetic by 46.7% during underfloor heating (UFH) operation 24.53% domestic hot water (DHW) operation. Exergy loss reduces 5.72% UFH 39.74% DHW. High values both operating regimes are present flows 1, 2, 3 4 due high production relatively small levels. general recommendation set operate near-optimal capacities then 5, 11, 13.
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ژورنال
عنوان ژورنال: Thermal Science
سال: 2021
ISSN: ['0354-9836', '2334-7163']
DOI: https://doi.org/10.2298/tsci200529237v