Technician A says the Delta T method of adjusting the charge levels of the refrigerant system relies on a comparison of the inlet and outlet temperatures of the evaporator. Technician B says systems should always be checked first for refrigerant contamination. Who is correct
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Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
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Technician A says the Delta T method of adjusting the charge levels of the refrigerant system relies...
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