REF134A A Cascade refrigeration system using flash tank and intercooler is operating an evaporator with a capacity of 10

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REF134A
A Cascade refrigeration system using flash tank and intercooler
is operating an evaporator with a capacity of 10 tons at a
temperature of -30°C. The flash tank and intercooler is operated at
0.40 MPa. If the condensing temperature is 50°C, determine the COP
and the refrigerating efficiency of the system. Draw the schematic
diagram of the system and assume ideal conditions.

Ref134a A Cascade Refrigeration System Using Flash Tank And Intercooler Is Operating An Evaporator With A Capacity Of 10 1 (106.5 KiB) Viewed 28 times

100 150 200 250 300 350 400 450 500 550 20 600 20 1050 OOK R-134a (1.1.12) Reference 2000 100K) for strated liquidat O'C 350 1209 700 1150 10 8 1100 800 pe 500 kg/m 400 1000 0 0 10 8 300 6 88 200 6 1450 1400 350 4 150 4 T-40C 100 80 2 60 N 2 40 40 30 1 0.8 30 G- 888 1 0.8 0.6 20 0.6 20 PRESSURE, MPa 0.4 10 o 0.4 10 8.0 0.2 T-10°C 6.0 10889898,5 8 8 0.2 -20 4.0 100 09 3.0 0.1 0.08 0.06 -30 0.1 0.0a 2.0 po ino 1.5 0.06 40 0.04 0.04 1.0 0.80 -50 0.80 - -0.70 0.02 -1.00 -1 -060 - 1.10 - 120 -1.30 - 1.40 1.50 1.70 1.60 - 200 2.10 22 C4. DUPOEZ 0.60 0.02 0.40 0.01 100 150 200 250 0.01 600 450 500 550 300 350 400 ENTHALPY, kJ/kg Properties computed with: NIST REFPROP 70 Based on formulation of Romand (1994