Simulation Study on Characteristics of Ultra-Low Temperature Heat Pump Air Conditioning System for Pure Electric Vehicles

Li, Hai Jun; Zhou, Guangyou; Li, An Gui; Li, Xu Ge; Chen, Jie; Chen, Tong

doi:10.4028/www.scientific.net/amm.580-583.2475

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…Wang [73] took the two-stage cycle technology and applied it in a rail vehicle AC. Li et al [74,75] presented a low temperature heat pump AC system for fully EVs based on the two-stage compression refrigeration cycle as shown in Figure 10. They studied the characteristics of this system by simulation and experimentation.…”

Section: Figurementioning

confidence: 99%

Progress in Heat Pump Air Conditioning Systems for Electric Vehicles—A Review

Qing-hong

2016

Energies

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Electric vehicles have become increasingly popular in recent years due to our limited natural resources. As a result, interest in climate control systems for electric vehicles is rising rapidly. According to a variety of research sources, the heat pump air conditioning system seems to be a potential climate control system for electric vehicles. In this paper, an extensive literature review has been performed on the progress in heat pump air conditioning systems for electric vehicles. First, a review of applications of alternative environmentally friendly refrigerants in electric vehicles is introduced. This is followed by a review of other advanced technologies, such as the inverter technology, innovative components and the system structure of the heat pump air conditioning system for electric vehicles. Lastly, recent developments in multiple source heat pump systems are presented. The use of these advanced technologies can provide not only sufficient refrigerating capacity for the electric vehicle, but also higher climate control system efficiency. We believe that ideal practical air conditioning for electric vehicles can be attained in the near future as the mentioned technical problems are gradually resolved.

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Section: Figurementioning

confidence: 99%

Progress in Heat Pump Air Conditioning Systems for Electric Vehicles—A Review

Qing-hong

2016

Energies

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“…5 Currently, there are still many challenges for the thermal management system, such as the difficulty of heating under low temperature conditions and the greenhouse effect of refrigerant, which hinder the rapid development of Battery electric vehicle (BEV). 6,7 Yuksel et al 8 studied the effect of regional temperature differences on BEV efficiency, range and use-phase power plant CO 2 emissions. The results show that the annual energy consumption of BEV varies by 15% due to temperature differences and the greenhouse gas produced by BEV varies by a factor of three.…”

Section: Introductionmentioning

confidence: 99%

Heating performance of heat pump air conditioning system for battery electric vehicle with different refrigerants

Li²,

Wang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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To improve the heating performance of Heat Pump Air Conditioning System (HPACS) of Battery Electric Vehicle (BEV) and reduce the greenhouse effect of refrigerants, the performances of multiple refrigerants in different modes and conditions are analyzed in this paper. Based on Worldwide Harmonized Light Vehicles Test Cycle (WLTC) dynamic conditions, the impact of heating on battery State of Charge (SOC) is analyzed in HPACS and Positive Temperature Coefficient (PTC) combined heating mode. To better evaluate the contribution of refrigerants to the greenhouse effect, Total Equivalent Warming Impact (TEWI) is used to evaluate multiple refrigerants. The results show that heating capacity increases with the increment of compressor power and air velocity. As compressor power decreases and air velocity increases, COP increases. R32 and R744 are the optimal refrigerants. When the ambient temperature is between −10°C and −15°C under WLTC conditions, the SOC reduction of R32 system is 20.8%–21.1% less than that of R134a system. When the ambient temperature is between −20 and −25°C, the SOC reduction of R744 system is 21.4%–21.6% less than that of R134a system. And the carbon dioxide emissions of R32 and R744 systems are 35.1%, 66.9%, 39.2%, and 55.5% less than that of R134a system, respectively.

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Energy-saving Optimization of Frequency-variable Heat Pump Air Conditioning System for Electric Vehicles Based on a Genetic Algorithm

Peng,

Yang,

2023

Int.J Automot. Technol.

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Simulation Study on Characteristics of Ultra-Low Temperature Heat Pump Air Conditioning System for Pure Electric Vehicles

Cited by 5 publications

References 5 publications

Progress in Heat Pump Air Conditioning Systems for Electric Vehicles—A Review

Progress in Heat Pump Air Conditioning Systems for Electric Vehicles—A Review

Heating performance of heat pump air conditioning system for battery electric vehicle with different refrigerants

Energy-saving Optimization of Frequency-variable Heat Pump Air Conditioning System for Electric Vehicles Based on a Genetic Algorithm

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