Analysis of optimization and upgrading renovation ofa large hotel comprehensive energy system

In order to meet the requirements of various heat sources such as winter heating, domestic hot water, swimming pool hot water, laundry vapor of a five-star hotel, a variety of heat source methods suitable for each heat demand system are adopted to replace the hotel’s original vapor heat source system. Suitable heat source replacement systems include gas vapor generator vapor supply system, subsystem partition hot water supply system with volumetric gas hot water heater, multi-energy coupling combined heating system with atmospheric pressure modular gas hot water boiler plus air-source heat pump unit, swimming pool special air-source heat pump unit series direct hot water supply system, volumetric gas hot water heater heating system, etc. Each system has achieved good energy saving and cost saving effects through the operation of nearly one heating season.