Psychrometrics numeric: compute sensible heat factor from sensible and latent rates A process adds sensible heat = 30 kJ/s and latent heat = 20 kJ/s to moist air. Calculate the sensible heat factor (SHF) for the process. Choose the correct value.
Mechanical Engineering
Heat Transfer, Refrigeration and Air Conditioning
Difficulty: Easy
Choose an option
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A0.3
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B0.6
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C0.67
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D1.5
Answer
Correct Answer: 0.6
Explanation
Given data
- Sensible heat rate = 30 kJ/s
- Latent heat rate = 20 kJ/s
Concept/ApproachSensible heat factor: SHF = (Sensible heat) / (Total heat) = S / (S + L).
Step-by-step calculationS + L = 30 + 20 = 50 kJ/sSHF = 30 / 50 = 0.60
Final Answer0.6