R134a enters a compressor as a saturated vapor at 180 kPa with a flow rate of 0.35 m^3/min and leaves at 700 kPa and 50 degrees Celsius. There is a heat loss of 800 W. Determine the amount of power that must be supplied to the compressor for this process.
Added by Kristina M.
Step 1
Determine the state of the refrigerant at the inlet and outlet of the compressor using a refrigerant table or chart. At the inlet: - Pressure = 180 kPa - Saturated vapor state At the outlet: - Pressure = 700 kPa - Temperature = 50°C Show more…
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Refridgerant 134a enters a compressor at 180 kPa as a saturated vapour with a flow rate of 0.4 m3/min and leaves at 700 kPa. The power supplied to the refrigerant during tbe compression process is 2.5 kW. What is the temperature of the refrigerant at the exit of the compressor?
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Refrigerant-134a enters a compressor at $180 \mathrm{kPa}$ as a saturated vapor with a flow rate of $0.35 \mathrm{~m}^{3} / \mathrm{min}$ and leaves at $900 \mathrm{kPa}$. The power supplied to the refrigerant during the compression process is $2.35 \mathrm{~kW}$. What is the temperature of R-134a at the exit of the compressor?
Refrigerant-134a enters an adiabatic compressor at $-30^{\circ} \mathrm{C}$ as a saturated vapor at a rate of $0.45 \mathrm{m}^{3} / \mathrm{min}$ and leaves at $900 \mathrm{kPa}$ and $55^{\circ} \mathrm{C}$. Determine $(a)$ the power input to the compressor, $(b)$ the isentropic efficiency of the compressor, and $(c)$ the rate of exergy destruction and the second-law efficiency of the compressor. Take $T_{0}=$ $27^{\circ} \mathrm{C} .$ Answers: (a) $1.92 \mathrm{kW},$ (b) 85.3 percent, $(c) 0.261 \mathrm{kW}$
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