Refrigeration load must be calculated in order to design an efficient refrigerator. Insulation will also affect the refrigeration load. To find the BTU size of the refrigeration needed for your walk-in, we have provided a sizing tool to estimate the required BTU’s your unit will use. ILANGUMARAN HEAT TRANSMISSION OVERALL COEFFICIENT OF HEAT TRANSFER — U The overall coeffcient of heat transfer, U, is defned as the rate of heat transfer through a material or compound structural member with parallel walls.
To remove the heat we need to know what the cooling load will be.
The cooling load varies throughout the day so in most cases the average cooling load is calculated and the refrigeration capacity is calculated to suit this. The above figure shows the objectives of refrigerators and heat pumps. The purpose of a refrigerator is the removal of heat, called the cooling load , from a low-temperature medium. You want to know what an estimated refrigeration load is, of the product only, of taking 10lbs per hour production rate of cookie dough, from 65F down to 15F. Using a freezing point of degrees, a specific heat of.
Product load factors were taken from the Heatcraft Engineering Manual H-ENG-1.