0.2 A condenser condenses 2700kg steam per hour while air leaks into It at 2.2kg/hr. The condensate and air suction spout temperatures are 32.9°C. The barometer and vacuum gauge readings are 765mmHg and 690mmHg respectively. The condenser uses 125.55M9 of cooling water per hour to condense steam with a dryness fraction of 0.86 and the air pump has a volumetric efficiency of 82.5%. Take R = 0.287kJ/kgK for air and calculate: %3D 6.2.1 the temperature rise of the cooling water (10.85°C); 6.2.2 the air pump capacity in m2/min (0.78m3³/min).
0.2 A condenser condenses 2700kg steam per hour while air leaks into It at 2.2kg/hr. The condensate and air suction spout temperatures are 32.9°C. The barometer and vacuum gauge readings are 765mmHg and 690mmHg respectively. The condenser uses 125.55M9 of cooling water per hour to condense steam with a dryness fraction of 0.86 and the air pump has a volumetric efficiency of 82.5%. Take R = 0.287kJ/kgK for air and calculate: %3D 6.2.1 the temperature rise of the cooling water (10.85°C); 6.2.2 the air pump capacity in m2/min (0.78m3³/min).
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter45: Domestic Refrigerators And Freezers
Section: Chapter Questions
Problem 20RQ: Welded ______sealed compressors are normally used in household refrigerators.
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