The invention provides a construction method for an
energy consumption model of an existing building air conditioner. The construction method comprises the steps of acquiring the
energy consumption ofthe building air conditioner, the indoor and outdoor dry-
bulb temperature, the solar
radiation amount, the indoor and outdoor
relative humidity and the rated power of each heating device in a building; calculating the
energy consumption of a
building envelope according to the outdoor dry-
bulb temperature, the indoor dry-
bulb temperature and the solar
radiation amount; calculating the total energyconsumption of the internal disturbance of
fresh air according to the energy consumption of the building air conditioner and the energy consumption of the
building envelope; calculating the per-capita
fresh air volume of the energy consumption model of the building air conditioner, the number of persons and the coefficients of performance of illumination and equipment according to the
total energy consumption of the internal disturbance of the
fresh air, the indoor and outdoor dry-bulb temperature, the indoor and outdoor
relative humidity and the rated power of each heating device in the building; determining the energy consumption model of the existing building air conditioner according to the per-capita fresh
air volume, the number of the persons and the coefficients of performance of the illumination and the equipment. The invention further discloses an energy consumption prediction method for the existing building air conditioner utilizing the constructed energy consumption modelof the existing building air conditioner. The construction method and the energy consumption prediction method have the
advantage that the
air conditioning load predicted by using the model is closerto the actual
air conditioning load of a building.