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3 cards from this section. Quick, good the night before a test.
Define sensible heat and give the equation used in HVAC.
Think about how temperature change affects heat transfer.
What does latent heat represent in an air-conditioning context?
Consider how moisture affects cooling.
What is the equation used to calculate sensible heat?
Consider what factors influence temperature changes.
True or False: Latent heat involves a change in phase of a substance.
Think about materials changing states.
A room requires a 7°C increase in temperature. If the mass of air in this room is 1.2 kg and the specific heat capacity is 1.006 kJ/kg·°C, how much energy is needed to reach the desired temperature?
Substitute the values carefully into the sensible heat equation.
Consider two air streams, the first having a mass flow rate of 0.5 kg/s at a temperature of 22°C and the second 0.8 kg/s at 28°C. Calculate the resultant temperature of the mixed air stream using the mixing equation.
Ensure you apply the mixing equation accurately.
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