High temperature efficient water-water heat pump domestic hot water system design for a hotel in Guangzhou

Presents the domestic hot water system in a Guangzhou hotel, discusses the principle of the high temperature efficient water-water heat pump system and the features of gradual temperature-raising. Expounds the optimized hot water heat storage system, and analyses the energy efficient benefits compared with the conventional domestic hot water system. Provides a reference for the design of domestic hot water system in buildings such as hotels and hospitals, which need the cooling and heating at the same time.