Abstract

Combining with the energy consumption of air-conditioning system and the characteristics of the cooling and heating load in the hotel, the authors analyse the energy-saving property and necessity of adopting condensing heat recovery from water chillers. Taking the air-conditioning system of a star-hotel as an example, the optimization design for condensing heat recovery system from chillers on raising the temperature difference between supply and return water, the hot-water tanks in series and the water temperature stratification effectively realizes cascade and sequential utilization of hot-water, which keeps the water temperature stable and becomes more energy-saving.

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