Calculate the work needed to operate this cycle

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Reference no: EM131156479

Problem 6.32:

Methyl chloride at 2 bar and 65 °C is to be liquefied under constant pressure to produce saturated liquid.

a) Calculate the ideal work for this process assuming the surroundings to be at 25 °C.

b) The liquefaction will be carried out using a refrigeration cycle with a coefficient of performance ω = 3.5. Calculate the work needed to operate this cycle.

c) What is the lost work for the cycle in part (b)?

The following information for methyl chloride is available: Saturation temperature at 2 bar: - 7 °C.
ΔHvap at 2 bar: 21.5 kJ/mol.CP of vapor: 38 J/mol K. Assume CH3 Cl vapor may be assumed to be ideal. Is this a good assumption?

Reference no: EM131156479

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