Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5017207 | International Journal of Refrigeration | 2017 | 8 Pages |
â¢The system performance of AHSP with blade-injected rotary compressor is investigated.â¢ASHP with the blade injection can enhance the heating capacity and COP by 23.1-28.2% and 4.5-8.1%, respectively.â¢The blade injection structure can enhance the mass flowrate in the condenser by 26.1-29.2%.
Gas injection has been a crucial technology to avoid the serious degradation of air source heat pumps in low ambient temperature. A novel injection structure on the blade for rotary compressors has been put forward in previous research to overcome the drawback of traditional injection structures. Based on a verified numerical model, the thermodynamic performance of an air source heat pump with the new gas-injected rotary compressor is investigated. The results indicate that, compared to the air source heat pump with the regular single-stage rotary compressor, the proposed injection structure can enhance heating capacity and COP of the air source heat pump by 23.1-28.2% and 4.5-8.1%, respectively.