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Performance comparison of liquid, vapor, and liquid–vapor injection of single-screw compressor for an air-source heat pump [PDF]

open access: goldAIP Advances
Refrigerant injection techniques are usually proposed to improve the performance and reliability of compressors when a single-screw compressor applied to an air-source heat pump works at low temperatures in winter.
Qiangyu Wen   +4 more
doaj   +2 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

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   +1 more source

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

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

Performance of heat pump system for water heating in European climate [PDF]

open access: yesE3S Web of Conferences, 2020
A performance of air-to-water and brine-to-water heat pump for domestic hot water preparation was analyzed in different climates of Europe. Air-source heat pumps are widely used energy source for domestic applications with low operation costs.
Kachalouski Yauheni, Tomáš Matuška
doaj   +1 more source

Life cycle cost analysis of different residential heat pump systems [PDF]

open access: yesE3S Web of Conferences, 2020
Nowadays, the application of air-source heat pumps for heating and cooling in residential buildings has been increased significantly. The main occasion for this is the accessibility of a heat source for these devices - the external air. Nevertheless, the
Doseva Nadezhda, Chakyrova Daniela
doaj   +1 more source

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