Experimental Study and Simulation on the Performance of a Heat Pump System with Novel Low-GWP R474A for New Energy Vehicles
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20265297
- Paper/Info type
- Proceedings (Spring)
No.69-26
- Pages
- 1-7(Total 7 p)
- Date of publication
- May 2026
- Publisher
- JSAE
- Language
- English
- Event
- 2026 JSAE Annual Congress (Spring)
Detailed Information
| Author(J) | 1) Yunlong Zhang, 2) Nie Hao, 3) Negishi Yasutaka, 4) Ajioka Shohei, 5) Bunno Asuka, 6) Yamamoto Kei, 7) Jiangping Chen, 8) Binbin Yu |
|---|---|
| Author(E) | 1) Yunlong Zhang, 2) Nie Hao, 3) Negishi Yasutaka, 4) Ajioka Shohei, 5) Bunno Asuka, 6) Yamamoto Kei, 7) Jiangping Chen, 8) Binbin Yu |
| Affiliation(J) | 1) Shanghai Jiao Tong University, 2) Daikin Fluorochemicals, 3) Daikin Industries, 4) Daikin Industries, 5) Daikin Industries, 6) Daikin Fluorochemicals, 7) Shanghai Jiao Tong University, 8) Shanghai Jiao Tong University |
| Affiliation(E) | 1) Shanghai Jiao Tong University, 2) Daikin Fluorochemicals, 3) Daikin Industries, 4) Daikin Industries, 5) Daikin Industries, 6) Daikin Fluorochemicals, 7) Shanghai Jiao Tong University, 8) Shanghai Jiao Tong University |
| Abstract(E) | This study investigates the cycle performance and system behavior of a novel refrigerant, R474A in the heat pump for new energy vehicles. Results show under both cooling and heating conditions, R474A demonstrated strong performance: a COP up to 3.67 under light-load conditions, a maximum cooling capacity of 7004.5 W, and a maximum heating capacity of 6044.5 W. Comparative analysis revealed that R474A outperforms R134a and R290 in terms of cooling and heating capacity across conventional and extreme operating conditions, while maintaining a higher COP than R290. Notably, R474A overcame the operational limitations of R134a at extreme low temperatures and exhibited minimal temperature non-uniformity from glide effects, ensuring satisfactory thermal comfort. These findings highlight R474A's significant potential as a sustainable alternative refrigerant for NEV heat pump applications. |
