The refrigeration load:

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Cooling load

Cooling load on the cooling system determines the size of the refrigeration, and, consequently, its energy consumption. (This does not affect the COP or efficiency: without cooling load will not be a COP or effectiveness.)

Less load, the lower the power consumption. Load, as a rule, consists of many different components. You may be able to reduce or eliminate one or more of them. Application storage (e.g. cold store or retail Cabinet) load includes:

  • heat flow through the walls, floor and ceiling;
  • heat gains from the change of air through the doors/covers/open fronts;
  • the heat from the engines, fans, lights, and even solar radiation;
  • heat from pumps and other electrical devices in the cold store;
  • heat from people and processing equipment, such as fork-lift trucks, which comes in the shop;
perhaps the heat load of goods which is at a higher temperature than the temperature of storage. You pay for some of these heat gains in two times. For example, you pay for engine start evaporator fan, but you also pay for the cooling system to heat it puts at cooled space. Processing of applications, the majority of the heat load, as a rule, from the product, chilled or frozen, although there may be strangers heat gains. More information about reducing these heat loads are given in the GPG 279 Cut employment costs for refrigeration.


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