Physics · Refrigeration and Air Conditioning
The performance test of an air conditioning unit rated as 140.7 kW (40 TR) indicates poor cooling. The test on heat rejection to the atmosphere in its condenser shows the following: - Cooling water flow rate = 4 L/s - Water temperature = inlet 30°C and outlet 40°C - Power input to motor = 48 kW (95% efficiency) What is the actual refrigerating capacity of the unit? (Take Cw = 4.1868 kJ/kg·K)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 148.6 TR
- 252.6 TR
- 345.6 TR
- 434.7 TR✓
Correct answer
34.7 TR
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