7-27 Refrigerant-134a enters the coils of the evaporator of a refrigeration system as a saturated liquid-vapor mixture at a pressure of 140 kPa. The refrigerant absorbs 180 kJ of heat leaves as saturated vapor at the same pressure. Determine from the cooled space, which is maintained at -10°C, and from the cooled space, which is maintained at leaves as saturated vapor at the same pressure. Determine (a) the entropy change of the refrigerant, (b) the entropy change of the cooled space, and (c) the total entropy change | for this proces.
7-27 Refrigerant-134a enters the coils of the evaporator of a refrigeration system as a saturated liquid-vapor mixture at a pressure of 140 kPa. The refrigerant absorbs 180 kJ of heat leaves as saturated vapor at the same pressure. Determine from the cooled space, which is maintained at -10°C, and from the cooled space, which is maintained at leaves as saturated vapor at the same pressure. Determine (a) the entropy change of the refrigerant, (b) the entropy change of the cooled space, and (c) the total entropy change | for this proces.
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Transcribed Image Text:7-27 Refrigerant-134a enters the coils of the evaporator of
a refrigeration system as a saturated liquid-vapor mixture at
a pressure of 140 kPa. The refrigerant absorbs 180 kJ of heat
a refrigeration system as a saturated liquid-vapor mixture
a pressure of 140 kPa. The refrigerant absorbs 180 kJ of b
from the cooled space, which is maintained at – 10°C, and
leaves as saturated vapor at the same pressure. Determine
(a) the entropy change of the refrigerant, (b) the entropv
change of the cooled space, and (c) the total entropy change
for this process.
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Entrenu O
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