Thermodynamic analysis on the performance of a variable speed scroll compressor with refrigerant injection

Semi-empirical modelling of a variable speed scroll compressor with vapour injection

“…Indeed, many studies available in the open literature have deserved attention to the simulation of vapour injection scroll compressor but, differently from the modelling of standard scroll compressor where three distinct modelling techniques (geometrical, semi-empirical and empirical modelling) are largely proposed (Byrne et al, 2014), for the vapour injection scroll compressor mainly geometrical models are mainly proposed with few exceptions as discussed below. Park et al (2002) developed a deterministic model of a variable speed scroll compressor with vapour injection working with R22. The model was validated considering only the no injection condition showing deviations of the predicted compressor capacity and electrical power lower than 10% with respect to the experimental ones.…”

Design optimization of scroll compressor applied for frictional losses evaluation

“…For those leakages, one dimensional isentropic compressible flow in a nozzle (Chen et al, 2002 andPark et al, 2002) is used to derive the leakage mass flow rate.…”

Design of experimental bench and internal pressure measurement of scroll compressor with refrigerant injection

“…The injection process can be considered as a onedimensional compressible flow in a nozzle with an isentropic assumption [4]:…”

“…Ayub et al [2] and Dutta et al [3] researched the effects of liquid injection on the discharge temperature, power consumption, and compressor efficiency by experiment and simulation. Park et al [4] presented the influence of gas injection on the discharge temperature, power and COP in an inverter scroll compressor by numerical and experimental method. Cho et al [5] did some experiments on an inverter scroll compressor with liquid injection.…”