Design of air conditioning system and carbon emission reduction for high-efficiency refrigeration plant room of a hospital in Hainan

Based on the design of the high-efficiency refrigeration plant room of the First Affiliated Hospital of Hainan Medical University, the cold and heat source system design, the transmission and distribution system design, the calculation of the annual average design energy efficiency ratio of the refrigeration plant room system and the calculation of carbon emission are presented in detail. The four pipe air-source heat pumps are selected to provide heat source. The cold source side is connected to the refrigeration system for free cooling, so as to save the investment of the refrigeration host. This project is equipped with secondary pump system. Through refined engineering design, the annual average design energy efficiency ratio of the refrigeration plant room system reaches 5.49, and the carbon emission of the refrigeration plant room is reduced by 2 502 t/a compared to conventional systems.