Modeling and experimental investigation of accumulators for automotive air conditioning systems

Low Charge Transport Refrigerator (Ii). Theoretical and Experimental Investigation

“…The low pressure receivers are often called accumulators. Parameters of available low pressure accumulators and their influence on system performance are investigated by Wang et al [13,14]. They experimentally and theoretically studied low pressure accumulator with an oil bleeding hole at the bottom of j-tube.…”

The effect of oil in refrigeration: Current research issues and critical review of thermodynamic aspects

“…CFC/mineral oil mixtures are prone to plating copper, but data were presented to show that copper plating is not a problem with HFC/POE lubricants unless residual CFC/mineral oil is present in the system. An illustration of system design studies is the work by Wang et al (2006b): these authors included the effect of oil in a model and in their experimental investigation of the design of an accumulator for an automotive air-conditioning system. They noticed that the effect of oil on the pressure in the accumulator pressure is negligible for oil concentrations lower than 7.5%.…”

Modelling and experimental study of automotive air-conditioning systems with consideration of two-component two-phase flow

“…In a normal automotive CCOT system with no IHX (NIHX), the oil concentration is about 5 percent, and the vapour quality o f the refrigerant at inlet o f compressor is about 80-90 percent, determined by the accumulator, according to Wang et al (2006). The The experiments o f these three systems were carried out at identical operating conditions: the refrigerant charge is 1.8 kg, the evaporator air inlet temperatures is 25°C, the condenser water temperature is 40°C, and other experimental conditions are shown in The LLSLHX system has the lowest total mass flow rate, and highest vapour mass flow rate.…”