Answer :
Final answer:
The sensible heat portion of the duct load is calculated by subtracting the latent heat from the total heat. This is because total heat includes sensible heat and latent heat, while sensible heat only includes heat that results in a change in temperature.
Explanation:
The sensible heat portion of the duct load can be calculated as the total heat minus the latent heat. The total heat is the sum of all the heat in a system, including both sensible heat and latent heat. Sensible heat is the portion of heat that results in a change in temperature, while latent heat is the heat involved in a phase change (for example from liquid to gas or vice versa) without any change in temperature.
So to calculate the sensible heat portion, you would subtract the latent heat (the heat involved in phase change) from the total heat (the sum of all the heat in the system).
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