Yang Minghong, Wang Baolong, Shi Wenxing, et al. Design and Control of R32 Two-phase Refrigerant Injection System Utilizing Scroll Compressor[J]. Journal of refrigeration, 2015, 36(5).
DOI:
Yang Minghong, Wang Baolong, Shi Wenxing, et al. Design and Control of R32 Two-phase Refrigerant Injection System Utilizing Scroll Compressor[J]. Journal of refrigeration, 2015, 36(5). DOI: 10.3969/j.issn.0253-4339.2015.05.001.
Design and Control of R32 Two-phase Refrigerant Injection System Utilizing Scroll Compressor
To overcome the disadvantage of high discharge temperature in R32 compressor
two-phase refrigerant injection was proposed to decrease discharge temperature as well as improve system performance in severe conditions
and an improved injection system with economizer was proposed to realize two-phase injection. Based on the validated dynamic distributed parameter model of R32 scroll compressor
the optimization of heat transfer capability of internal heat exchanger and intermediate pressure according to system performance and discharge temperature were discussed. Through the optimized design and control of the two-phase injection system
the cooling capacity was enhanced by 7.1%-11.4% and COP was improved by 2.6%-6.2%.