SiBE811001EB System ConfigurationCONVENI-PACK 122.4 Economizer[Mollier chart][Indoor side]z The economizer cycle has been adopted as the improvement plan of the performance coefficient of the screwchiller or centrifugal water chiller. In adopting the high pressure liquid refrigerant called R-410A, an economizercycle is adopted to improve efficiency while lowering the discharge gas temperature.[Single Stage Refrigerating Cycle]z This is adopted with temperature control in mindwith the latent heat of evaporation by expandingpart of the high pressure refrigerant in order toreduce the refrigerant discharge gas temperature.The performance coefficient decreases with thedecline in refrigerant capacity due to the reductionof circulated refrigerant volume to the evaporator.[Economizer Cycle]z This performs subcooling of the liquid refrigerantgoing to the evaporator by expanding part of thehigh pressure refrigerant from the condenser in theintercooler with auxiliary electronic expansion valve.z The refrigerant capacity increases by thesubcooling action. As a result, the performancecoefficient is improved with respect to the existingmachine.(The performance coefficient is improved byinjecting refrigerant at intermediate pressure duringthe compression process and converting to therefrigerant effect at a lower pressure ratio.)CompressorEvaporator CondenserIntercoolerCompressorEvaporatorCondenserIntermediatesuction portInhaler/suctionport
