The cooling capacity is set by user input because the system can control the capacity by the capacity controller. The capacity controller adjusts compressor frequency to maintain the cooling capacity and it makes the below equation (7) valid. A PI controller is used as the capacity controller and it was embodied by LabView program. With the constant capacity controller, if compressor power consumption is known, present COP is easily calculated by dividing the cooling capacity by the power consumptionHeat capacity is set by user input, because the system can be controlled by controlling production. Ability to maintain control of the compressor adjusts the frequency capable of cooling and it makes the bottom of the equation. (7) is required. PI controllers are used to being able to control it with LabVIEW applications with constant power control of compressor capacity if you can easily recognize the current cop is calculated by dividing the cooling capacity, energy consumption.
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