Calculation method of energy efficiency ratio for air conditioning water systems

Based on the building all-year hourly air conditioning load, presents a calculation method, in which mainly considered are the operation strategy of water chiller units and water pumps when the hourly load changed, the energy efficiency ratio of the water chiller unit under the part load condition. This method can be used for calculating the power consumption of the main equipment in refrigerating plant room more accurately. Based on an example project with constant flow distribution with primary pump chilled water system, states a practical application of this calculation method.