How is sensible heat gain determined in a heat loss calculation?

Sensible heat gain is determined using the formula Q = CFH x TD, where Q represents the sensible heat gain, CFH is the cooling flow rate in cubic feet per hour, and TD is the temperature difference between the indoor and outdoor environments. This formula effectively quantifies the heat added to or removed from a space, specifically focusing on the heat that directly affects temperature without changing moisture levels.

Using CFH as the flow rate allows for calculating the volume of air moving into or out of a space, while TD gives the specific temperature difference driving the heat transfer process. Together, these elements create a straightforward way to estimate how much energy will need to be managed (either added or removed) to maintain comfortable indoor conditions.

Other formulas listed either misrepresent the relationship between CFH and TD or introduce unnecessary coefficients that may not be relevant in basic calculations for sensible heat gain. Thus, the straightforward application of these parameters in option A is the correct approach for determining sensible heat gain in heat loss calculations.