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Air curtain based on coupling of air source heat pump and electric heating [PDF]

open access: yesE3S Web of Conferences, 2021
Air curtain is a widely used heat insulation equipment in the market, which reduces the heat exchange efficiency of both sides by the air surface formed by jet.
Hongwen Jin, Bingqi song, Hengqin Gong
doaj   +2 more sources

Integrated crew for heating and dehumidification of air-source heat pump for tobacco curing. [PDF]

open access: yesSci Rep
Due to the low heating efficiency of heat pumps for tobacco curing caused by the low external environment in high-altitude areas, the high energy consumption and unstable heating is easy to occur. According to the heating model of flue-cured tobacco needed, the integrated crew of the air-source HP heating/dehumidification equipment was designed ...
Wang J   +7 more
europepmc   +3 more sources

Research Status of Defrosting Technology of Air Source Heat Pump [PDF]

open access: yesE3S Web of Conferences, 2021
Air source heat pump has the characteristics of high efficiency, energy saving, green and pollution-free, and has been widely used in building energy saving projects.
Kun Cheng, Bingzhan Liu, Guangpeng Li
doaj   +1 more source

THE SCOP OF AN AIR SOURCE HEAT PUMP: COMPARISON BETWEEN ON-OFF AND INVERTER HEAT PUMP

open access: yesJP 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.
openaire   +2 more sources

Evaluation of the coefficient of performance of an air source heat pump unit and an air to water heat pump

open access: yesJournal of Energy in Southern Africa, 2021
Air source heat pump (ASHP) water heaters are efficient devices for sanitary hot water heating. The coefficient of performance (COP) of the air to water heat pump (AWHP) is constantly lower than that of the corresponding ASHP unit. The study focused on determining the COP of both the ASHP unit and the AWHP.
S. Tangwe, K. Kusakana
openaire   +4 more sources

Performance of Solar Vacuum Tube Water Heater-Air Source Heat Pump System in Cold Area

open access: yesShanghai Jiaotong Daxue xuebao, 2023
To improve the stability of solar heating and reduce the high cost of air source heat pump heating, the idea of air source heat pump assisted solar stable heating was proposed.
LI Jinping, DONG Yuhui, LI Caijun, DAI Jingbo, NIU Yinan, NOVAKOVIC Vojislav
doaj   +1 more source

Air source heat pump in-situ performance

open access: yesEnergy and Buildings, 2021
Abstract Air Source Heat Pumps (ASHPs) are part of the solution to decarbonise 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 ...
Michael Chesser   +3 more
openaire   +1 more source

Comparison of PVT - heat pump systems with reference systems for the energy supply of a single-family house

open access: yesSolar Energy Advances, 2023
Photovoltaic - Thermal (PVT) collectors convert solar radiation into useful heat and electricity simultaneously, and with the same PV area, higher solar energy is harvested; hence PVT can be a key technology for the future supply of buildings.
Bharat Chhugani   +3 more
doaj   +1 more source

Evaluation and Optimization of heat Pump Combined District Heating System: A Case Study of China

open access: yesEnergies, 2022
The district heating area in China is continuously increasing, which brings an increase in district heating load. In order to solve the shortage of heating power and realize the carbon neutral target, this study proposes two retrofit schemes for district
Ling Cheng   +9 more
doaj   +1 more source

An Integrated Methodology for Scenarios Analysis of Low Carbon Technologies Uptake towards a Circular Economy: The Case of Orkney

open access: yesEnergies, 2022
This study aims to create a comprehensive, holistic approach to evaluate the environmental, energy, and economic impacts of air source heat pump deployment scenarios through: (i) a life cycle assessment of air source heat pumps in Orkney houses, (ii ...
Selman Sevindik, Catalina Spataru
doaj   +1 more source

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