Research on the electric vehicle heat pump air conditioning system based on R290 refrigerant

Huang, Yue; Wu, Xiuchun; Jing, Jiahao

doi:10.1016/j.egyr.2022.05.112

Cited by 9 publications

(6 citation statements)

References 8 publications

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“…Conversely, CO 2 , considered a more environmentally friendly refrigerant, suffers from higher system pressure and reduced energy efficiency due to its critical pressure of 7.4 MPa and critical temperature of 31.1 • C. Consequently, R1234yf demonstrates greater potential for development. The ensuing Table 2 delineates the fundamental characteristics of refrigerants R1234yf, R134a, CO 2 , and R290 [20].…”

Section: Refrigerantmentioning

confidence: 99%

Performance Research on Heating Performance of Battery Thermal Management Coupled with the Vapor Injection Heat Pump Air Conditioning

Yuan,

Guo,

Zhang

2024

WEVJ

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Compared to the use of positive temperature coefficient (PTC) materials that consume electrical energy for low-temperature heating, heat pump air conditioners can provide more energy-efficient heating performance by absorbing and utilizing heat from the outdoor air to heat the cab in order to improve the range of electric vehicles. In addition, in order to make the battery work under safe working conditions, this paper proposes battery thermal management coupled with vapor injection heat pump air conditioning. The system is modeled and analyzed through simulation, and the impact of the compressor speed and ambient temperature changes in the battery cooling performance of the system. The results show that under different compressor RPM (Revolution Per Minute) with an ambient temperature of 5 °C, the average temperature of the battery pack remains below 30 °C, and the majority of individual cell temperatures are maintained within the range of 20 to 35 °C. At a constant compressor RPM of 4000/min under varying ambient temperatures, the average temperature of the battery pack remains below 30 °C, with the majority of individual cell temperatures staying within the range of 20 to 35 °C. And the battery cooling performance still performs well. In the low temperature of −10 °C and −20 °C, the system can still maintain a relatively stable heating capacity compared with the 2009.1W, provided by the environment temperature of 5 °C at the same RPM.

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Section: Refrigerantmentioning

confidence: 99%

Performance Research on Heating Performance of Battery Thermal Management Coupled with the Vapor Injection Heat Pump Air Conditioning

Yuan,

Guo,

Zhang

2024

WEVJ

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“…Gambar 4 juga memberi petunjuk bahwa peningkatan kecepatan putar kompresor memberi arti bahwa kecepatan aliran refrigeran akan meningkat sehingga terjadi beban kompresor yang lebih besar, hal ini senada dengan penelitian yang dilakukan oleh (Huang et al, 2022).…”

Section: Kerja Kompresiunclassified

Komparasi Kinerja AC Kendaraan dengan Menggunakan Refrigeran R-134a, dan R-290

Hindratmo,

Condro Purnomo,

Satrio Wicaksono

et al. 2023

BENR

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The development of vapor compression refrigeration systems currently depends on the issue of environmental problems related to ozone layer depletion (ODP) and global warming potential (GWP). In addition to environmental issues, low energy use is also in the spotlight of researchers. To solve the problem of refrigeration development, natural refrigeration, especially hydrocarbons, is the focus of attention. Hydrocarbons are refrigerants that have excellent properties to be natural refrigerants. This study aims to compare the performance of refrigerant R-134a with R-290. The research used a standard vapor compression refrigeration system with a TEV-type expansion valve. The system performance is seen through compression, refrigeration effect, and COP with variations in compressor rotational speed of 1000 rpm, 1500 rpm, and 2000 rpm. The results showed that the compression work, refrigeration effect, and coefficient of performance (COP) of R-290 had a more excellent value. R-290 produces the highest compression work at a 2000 rpm compressor speed of 33.34 kJ/kg for the refrigeration effect at 1000 rpm of 353.33 kJ/kg and COP at 1500 rpm 12.32.

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“…As a refrigerant used in air conditioners, R290 has certain advantages in performance compared with R22 [1][2][3][4]. Huang [5] built a performance test platform to verify the feasibility and superiority of the water-cycle electric vehicle heat pump air conditioning system based on R290 refrigerant. Compared with R134a and CO2, R290 has better and more stable heat pump system performance in cold climates.…”

Section: Introductionmentioning

confidence: 99%

Analysis of leakage and diffusion of R290 in the engine compartment of electric vehicle

Wang,

Li,

Liu

et al. 2024

Preprint

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As an alternative refrigerant of R134a, natural refrigerant R290 has gradually been studied in the automotive air conditioning system. Due to its explosive characteristics, a certain safety hazard will be caused once leaks. This article studies the leakage and distribution of R290 under different working conditions through numerical simulation. The effects of leakage pores, charge amount, and leakage positions on R290 leaked diffusion. The results show that the leakage phase can be divided into a fast leakage stage, buffer stage, and diffusion phase. The leakage of the condenser is the most dangerous situation in the engine compartment leakage. Increasing the aperture and charge will increase the combustible area and duration of R290 leakage. Compared with the leakage diameter, the charge amount is more impact on the continuous duration of the internal flammable areas in the engine compartment.

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Research on the electric vehicle heat pump air conditioning system based on R290 refrigerant

Cited by 9 publications

References 8 publications

Performance Research on Heating Performance of Battery Thermal Management Coupled with the Vapor Injection Heat Pump Air Conditioning

Performance Research on Heating Performance of Battery Thermal Management Coupled with the Vapor Injection Heat Pump Air Conditioning

Komparasi Kinerja AC Kendaraan dengan Menggunakan Refrigeran R-134a, dan R-290

Analysis of leakage and diffusion of R290 in the engine compartment of electric vehicle

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