Practice - Cooling/Heating Equations
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Practice Questions
Test your understanding with targeted questions
What is sensible heat? Provide a definition.
💡 Hint: Think about how heat affects temperature directly.
If a mass flow rate of air is 0.5 kg/s and the specific heat is 1005 J/(kg·K), what will be the heat transfer if the temperature changes by 5 K?
💡 Hint: Use the formula Q = m·cp·ΔT.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for sensible heat?
💡 Hint: Recall which formula deals with temperature change.
True or False: Latent heat affects only the temperature of the air.
💡 Hint: Think about moisture and temperature changes.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a mass flow rate of air as 0.25 kg/s and a latent heat of vaporization of 2,256 kJ/kg, calculate the heat transfer if the humidity ratio changes from 0.005 kg/kg to 0.01 kg/kg.
💡 Hint: Identify the change in humidity ratio and apply the latent heat equation.
An HVAC system experiences a heat gain of 40,000 BTU/hr due to internal loads. How much cooling capacity (in kW) is required if 1 BTU/hr = 0.000293 kW?
💡 Hint: Remember to convert BTUs to kW using the conversion factor.
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