For summer A/C , the air conditioned space is maintained at a temperature lower than the surrounding temperature. The moisture content may also have to be maintained at a level lower than the atmospheric level. This requires that the heat which is added to the conditioned space is to be removed continuously.
Various Factors like ,
i) Heat flow, through the exterior walls, ceilings , floors, doors and windows.
ii) Heat by solar radiation.
iii) Heat received from the occupants.
iv) Heat received by infiltrated air etc., Add to the amount of heat into the room and hence , may be considered as a load. The a/c system should be capable of handling this heat load. In this context the heat load estimation assumes importance and has to accurately arrived.
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