Numerical analysis of a two-phase injection refrigeration cycle using R32

Yıl 2022, Cilt: 8 Sayı: 2, 157 - 168, 11.03.2022

Praveen Alok Debjyoti Sahu

https://doi.org/10.18186/thermal.1077857

Öz

The present paper reports the performance of a popular refrigerant R32 (Difluoromethane, CF2H2) experiencing the two phase injection process. Two phase injection process may lower the discharge temperature of a multistage compressor. In order to investigate the role and impact of two-phase injection on a compressor, a Scroll compressor is selected because scroll compressor has high tolerance for liquid refrigerant. A reputed compressor is chosen where all the operating conditions and specifications are available in public domain. The modelling and analysis of refrigeration system is carried out using a simple MATLAB code. Around 200 iterations were performed for four different condensing and evaporating temperatures. The maximum reduction in discharge temperature is found to be 44°C when compared to R410A used in the same system.

Anahtar Kelimeler

R32, Two-phase Injection, Discharge temperature, Scroll Compressor, R32, Two-phase Injection, Discharge temperature, Scroll Compressor

Kaynakça

• The article references can be accessed from the .pdf file.