thermosyphon solar systemA solar-assisted heat pump system (SAHPS) for hot-water production has been developed and compared for its experimental performance, under similar ambient conditions with a conventional thermosyphon solar system (CTSS) with a single direct tank. Both systems were monitored ...
To reduce frequency of unnecessary defrosting operation and effect optimum and efficient heating control at all times by changing a set temperature for starting the defrosting operation based on heat collection limit evaporating temperature mode in accordance with atmospheric temperature and hot-water ...
[translate] aTo compare how the proposed solar assisted heat pump systems compare to traditional heat pump systems the base case housing energy models were retrofitted with an ASHP and a GSHP system. 正在翻译,请等待...[translate]
Three different systems are described: solar assisted heat pump system for hot water using an unglazed evaporator collector; solar assisted heat pump for hot water and drying, where evaporator collector and air collector are used; an integrated solar heat pump system making use of solar and ...
system assisted by the solar energy is better than the conventional ground source heat pump,when the thermal load is larger than the cooling load.Besides,the solar-assisted ground source heat pump system maintains the heat balance of soil temperature field,so it is feasible in some certain cases...
In the present work, the biogas, solar and a ground source heat pump (BSGSHP) greenhouse heating system which will be modeled by ensemble model (neural network (NN), support vector machine (SVM) and K-nearest neighbors (K-NN)) has eight inputs and one output. Due to high heating costs...
A simple domestic hot water system reaches a seasonal performance factor of 4.5 and solar combi-systems seasonal performance factors up to 6. In contrast, the use of solar energy on the cold side of the heat pump achieves the best effects on the shortening of the ground heat exchanger of ...
A solar-assisted heat-pump dryer and water heater has been designed, fabricated and tested. The performance of the system has been investigated under the meteorological conditions of Singapore. The system consists of a variable-speed reciprocating compressor, collector evaporator, storage tank, air-coo...
In this work a experimental study of a solar assisted heat pump with direct expansion of the refrigerant within the solar collector, is presented. The maximum exergy efficiency, defined as the ratio of the outlet to the inlet exergy flow in every component of the heat pump cycle, is determine...
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