Rationally based model for evaluating the optimal refrigerant mass charge in refrigerating machines

Performance of a domestic refrigerator under influence of varied expansion device capacity, refrigerant charge and ambient temperature

“…It is well known from experiments and theoretical studies that a vapour compression cooling machine, at steady state conditions, has its highest efficiency for a certain expansion device capacity and quantity of charge [33]. However, to the knowledge of these authors no experimental studies have been conducted and published for on/off cycling systems even though this method for capacity control is the most common in domestic refrigeration.…”

“…Several research papers have provided information about the characteristics of such cooling systems [1][2][3][4][5][6][7][8][9][10][11]. Attempts to simulate their behaviour are reported in [12][13][14][15][16]. The capillary tube expansion device is investigated at adiabatic [17][18][19][20] and diabatic [21][22][23][24][25][26] conditions.…”

Influence of Refrigerant Charge Amount and EEV Opening on the Performance of a Transcritical CO2 Heat Pump Water Heater

“…Zhang et al [9] conducted simulation works on the effects of refrigerant charge and structural parameters on the performance of a direct-expansion solar-assisted heat pump system. Vjacheslav et al [10] proposed a rationally based model to evaluate the optimal mass charge into refrigerating machines. The calculated results indicate that the system performance is strongly related to the refrigerant mass charge.…”

Mapping the energy consumption of household refrigerators by varying the refrigerant charge and the expansion restriction

“…Vjacheslav et al (2001) presented a model to estimate the optimum refrigerant charge for refrigeration systems. The authors modeled each component separately, exploring the effect of refrigerant charge on each…”