CAE software like KULI supports the engineer in to investigate in arbitrary concepts. A possible concept is the indirect cooling of refrigerant using water instead of air as coolant medium.
In this case an A/C parallel flow cooler (ACPFC) component can used instead of the standard refrigerant-to-air condenser. Thence the refrigerant can be cooled by low temperature water. In concept phase the decent refrigerant charge for the circuit is not known. KULI enables to calculate the optimum charge for an operating point based on a desired subcooling value.Usable from release: KULI 8.0-1.04