Energy efficiency calculation method for central air conditioning chiller based on electric energy service management platform

Taking a chiller system in central air conditioning as the research object, according to the energy consumption theory and the basic data of chillers, presents an energy efficiency calculation method of chillers based on electric load rate. Adopts the piecewise least square method to fit the relationship between the electric load rate and the energy efficiency ratio of the chiller, and establishes the energy efficiency ratio curve of the chiller at different electric load rates. The calculation example shows that the method can more quickly and accurately reflect the actual energy efficiency characteristics of the chiller, which provides a reference for the online energy efficiency assessment and efficient operation of the chiller in the electric energy service management platform.