Required information

Problem $06\mathrm{.}108-$Flow rate, COP, power input

A commercial refrigerator with refrigerant$-134$a as the working fluid is used to keep the refrigerated space at $-35C$ by rejecting waste heat to cooling water that enters the condenser at $18C$ at a rate of $0\mathrm{.}450k\frac{g}{s}$ and leaves at $26C.$ The refrigerant enters the condenser at $1\mathrm{.}2$ MPa and $50C$ and leaves at the same pressure subcooled by $5C.$ The compressor consumes $3\mathrm{.}3$ kW of power. Use data from the tables.

Problem $06\mathrm{.}108.$d $-$ Minimum compressor power input

Determine the minimum power input to the compressor for the same refrigeration load. $($Round the final answer to three decimal places.$)$

The minimum power input to the compressor for the same refrigeration load is $$ kW$.$