Assessment method for running energy efficiency of central air conditioning system unit

Abstract

The invention particularly relates to an assessment method for running energy efficiency of a central air conditioning system unit. The method comprises the following steps that firstly, an energy consumption monitoring system collects running parameters of at least one year of a central air conditioning system in real time, and according to the running parameters, the running energy efficiency COP1 of a water chilling unit and the running energy efficiency COP2 of a chilled water system within corresponding time are worked out; secondly, a water chilling unit energy efficiency model COP is set up, and the mathematical expression of the water chilling unit energy efficiency model COP1 is shown in the specification; thirdly, a chilled water system mathematic model is set up and is COP2; 70%of data obtained after pretreatment in the third step are used for training the mathematic models in the second step and the third step for modeling, the rest of 30% of data is used for inspecting the models, and model coefficients beta 0-beta 9 and alpha 0-alpha 4 are identified; and the running energy efficiency of the central air conditioning system unit is obtained.

Description

technical field [0001] The invention relates to a central air-conditioning energy consumption control system, in particular to a central air-conditioning system host operating energy efficiency evaluation method. Background technique [0002] With the popularization and use of central air-conditioning, the energy consumption of central air-conditioning accounts for an increasing proportion of the total energy consumption of buildings. Therefore, real-time monitoring, evaluation and prediction of the energy efficiency level of the main equipment in the central air-conditioning system computer room, especially the refrigeration host, is very necessary for the energy-saving operation of the central air-conditioning system. [0003] The existing technology application number is 201610357439.9, and the patent name is: Central Air Conditioning System Host Operation Energy Efficiency Evaluation and Prediction Method and Device, which discloses a method that can not only perform sta...

AI Technical Summary

Problems solved by technology

However, the problem is that only the chilled water side is predicted, and the cooling water side is not involved, so the error is relatively large