Results 31 to 40 of about 287,587 (259)
Energies, 2022 Finland has approximately 150,000 oil-heated private homes. In 2020, the Finnish government launched subsidies for private homeowner energy renovations.
Paula Sankelo +3 more
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Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater
Energies, 2018 A household dual source heat pump water heater is proposed to utilize the energy of wastewater and air heat in a bathroom. The heat pump system integrates a wastewater source heat pump (WSHP), air source heat pump (ASHP), and a preheater.
Xiang Gou +5 more
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Performance Model of General Air Source Heat Pump in a Single Frost/Defrost Cycle
Zhileng xuebao, 2015 Conventional air source heat pump and no-frost air source heat pump can be categorized as general air source heat pump. The physical characteristics and energy consumption of general air source heat pump system in a frost/defrost cycle is analyzed based ...
Li Ning +3 more
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Buildings, 2023 Heat pump technology can extract low-level heat energy from urban sewage to heat or cool buildings, which can alleviate the two major problems of energy shortage and environmental pollution to a certain extent.
Zhaoyi Zhuang +5 more
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Energy Efficiency Technologies – Air Source Heat Pump vs. Ground Source Heat Pump
Journal of Sustainable Development, 2009 Heat pump deserves the name of eco-innovation. It uses ‘free energy’ - warmth collected in the soil or in the air to provide heat ing and cooling. There are two main types of heat pumps – air source heat pump and ground source heat pump. How do they work? What are the benefits of each system? How do they compare?
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Analysis of retrofit air source heat pump performance : results from detailed simulations and comparison to field trial data [PDF]
, 2011 In the UK, gas boilers are the predominant energy source for heating in housing, due primarily to the ready availability of natural gas. The take-up of heat pumps has lagged far behind Europe and North America.
Cockroft, J., Kelly, N.J.
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New Method of Heat Compensation for Defrosting of Air Source Heat Pump System in Winter
Zhileng xuebao, 2006 Frost removing of air-source heat pump results in shortage of heat output,chilly air flow,and less comfortable interior environment in winter.In our study,a new method to solve the problem of frost-removing in air-source heat pump units was proposed ...
陈超, 欧阳军, 王秀丽, 刘铭
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Advances in Mechanical Engineering, 2016 An instantaneous-heating air source heat pump water heater with a temperature stratified water tank was put forward. The instantaneous-heating air source heat pump water heater was designed to produce hot water instantly by three modes, namely condenser ...
Mingjing Lei +3 more
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THE SCOP OF AN AIR SOURCE HEAT PUMP: COMPARISON BETWEEN ON-OFF AND INVERTER HEAT PUMP
JP Journal of Heat and Mass Transfer, 2021 The paper investigates the seasonal performance of electric air-to-water heat pump comparing an on-off heat pump with an inverter-driven variable speed compressor. Reference is made to a heat pump for domestic space heating installed in Bologna, and the bin-method proposed by UNI/TS 11300-4 is employed in order to investigate the effect of external ...
Rossi di Schio E., Ballerini V.
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Investigation of Optimal Heating and Cooling Systems in Residential Buildings [PDF]
, 2008 This article compares four heating and cooling systems. The systems are: a high efficiency furnace and electric air conditioner; a ground source heat pump; an absorption air conditioner and direct heating; and a thermally driven heat pump; the last two ...
Bolling, Angela L., Mathias, James A.
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