The refrigeration load can be calculated using various methods, including the heat gain calculation method, the cooling load temperature difference (CLTD) method, and the radiant time series (RTS) method. The refrigeration load is the amount of heat that needs to be removed from a space or product to maintain a desired temperature. Accurate calculation of the refrigeration load is critical because it determines the size and capacity of the refrigeration system, which in turn affects the system’s efficiency, performance, and energy consumption. Underestimating the refrigeration load can lead to inadequate cooling, while overestimating it can result in wasted energy and increased costs.