Wu Jiying. Formula for Refrigerating Capacity of Two-stage Compression Refrigeration Cycle Based on Piston Displacement of High Pressure Stage[J]. Journal of Refrigeration, 2006, 27(6): 39-42.
DOI:
Wu Jiying. Formula for Refrigerating Capacity of Two-stage Compression Refrigeration Cycle Based on Piston Displacement of High Pressure Stage[J]. Journal of Refrigeration, 2006, 27(6): 39-42. DOI: 10.3969/j.issn.0253-4339.2006.06.009.
Formula for Refrigerating Capacity of Two-stage Compression Refrigeration Cycle Based on Piston Displacement of High Pressure Stage
The influences of ratio of piston displacement(RPD)
volumetric efficiency
and indicated efficiency of two-stage compressors on refrigerating capacity were analyzed to find a simplified method to calculate refrigerating capacity of a two-stage compression refrigeration cycle.By some simplifications and the relation of RPD and intermediate temperature
a simplified formula for refrigerating capacity of a two-stage compression refrigeration cycle was developed based on the piston displacement of high pressure stage.The present formula was verified with practical examples.The results show that the value of refrigerating capacity calculated with the present formula agrees well with that with the original method.