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JB1234
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Refrigerant-134a is to be cooled by water in a condenser. The refrigerant enters the condenser with a mass flow rate of 6 kg/min at 1 MPa and 70oC and leaves at 35oC. The cooling water enters at 300 kPa and 15oC and leaves at 25oC. Neglecting any pressure drop, determine
(a) the mass flow rate of the cooling water required.
(b) the heat transfer rate from the refrigerant to water.
a)I worked it out and my answer is .35kg/s by using the formula Q=mC(T1-T2)
but the answer is given as 0.486 kg/s
b) still didn't work with it
but the answer is given as 20.35 kJ/s
any help will be appreciated
(a) the mass flow rate of the cooling water required.
(b) the heat transfer rate from the refrigerant to water.
a)I worked it out and my answer is .35kg/s by using the formula Q=mC(T1-T2)
but the answer is given as 0.486 kg/s
b) still didn't work with it
but the answer is given as 20.35 kJ/s
any help will be appreciated
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