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Air Source Heat Pumps for Building Heating and Cooling
2023Air Source Heat Pumps (ASHPs) are part of the solution to decarbonize the residential heating sector. The coefficient of performance (COP) is a measure of the instantaneous efficiency of a heat pump. The heat energy produced by an ASHP is deemed renewable if it meets a specified sustained COP over a period of time, e.g., a seasonal performance factor ...
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The impact of climate change on air source heat pumps
Energy Conversion and Management, 2023Climate change will impact the building sector, but the related consequences are not fully known, especially at energy system level. This paper investigates the effect of a changing climate on heat pumps, worldwide recognized as one of the most promising technology to decarbonize the building sector.
Congedo, PM +3 more
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Experimental study of an improved air source heat pump
Energy Conversion and Management, 2004Abstract Although the advantage of an air source heat pump (ASHP) is self evident, all kinds of ASHPs available on the market have a deadly shortcoming that prevents their application in wider areas. They cannot run smoothly where the ambient temperature is very high in summer or extremely low in winter.
Yanjun Ding +3 more
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Measurement and investigation into air source heat pump exergy
SPIE Proceedings, 2011This study applies the second law of thermodynamics to analyze the irreversibility of air source heat pump systems. By using both T type thermocouple wires to measure the inlet and outlet temperatures of key components in the system and using pressure transmitters to measure the high and low pressure of the experiment systems, we collect data and use
Hung-Pin Cho +4 more
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Investigation of air-source heat pump using heat pipes as heat radiator
International Journal of Refrigeration, 2018Abstract In this study, a concept of air-source heat pump using heat pipes as heat radiator system (ASHPP) for room heating was proposed. The heat pipes radiator was developed to replace the heating terminal equipment used in traditional heat pump plants. A tested room with artificial load was constructed and an experimental apparatus of ASHPP system
Shuxue Xu +3 more
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An air source heat pump with an advanced cycle for heating buildings in Beijing
Energy Conversion and Management, 2011Abstract It is difficult for an air source heat pump (ASHP) system to provide enough heat for heating buildings with high working efficiency when it runs at low ambient temperature. An advanced ASHP system that, in the paper, composes a main refrigerant circle and a bypass circle would supply a lot of heat for the buildings in Beijing at same working
Ruixiang Wang +4 more
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Performance of a Solar-Assisted Air Source Heat Pump in Heating Condition
2010 Asia-Pacific Power and Energy Engineering Conference, 2010A experimental table of new solar-assisted air source heat pump (SA-ASHP) which used the non-homostasis two heat source complex heat exchanger as the core component has been constructed. Based on the national standards, three experimental conditions have been chosen, which the ambient temperature are respectively 7°C, 2°C, -7°C.
Guanghui Zhou +4 more
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Study of Heated Accumulator in Air-Source Heat Pump With Binary Mixture
Advanced Energy Systems, 1998Abstract In this paper, an experimental study is presented on the behavior of zeotropic versus azeotropic binary mixtures in heated accumulator air-source heat pump during heating mode. The experimental set up was composed of a fully instrumented air-source heat pump with a capacity of 36,000 BTUH and equipped with a heated suction ...
Samuel M. Sami, Daniel E. Desjardins
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Energy effectivity of air source heat pump
2015The paper presents the results of simulation of heat pump air-to-air. Numerical design of the main heat exchangers initially performed for a nominal re gime with heating capacity 10.5 kW: evaporator and condenser with heat exchange surface of the minimum weight of the bimetallic finned tubes with fins optimal parameters and restriction to the pressure ...
Valodzin, V. I. +2 more
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Heat Pumps for All? The Distributional Costs and Benefits of Residential Air-Source Heat Pumps
2023Eric Wilson +4 more
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