Reevaluation of the Gordon-Ng performance models for water-cooled chillers

Selecting a performance model is an important and essential first step in improving the operation of existing chiller systems. Of the several chiller models proposed in the literature, one promising approach is the physical model formulation proposed by Gordon and Ng (GN). The objective of this study is to perform a thorough evaluation of the internal and external predictive ability of the GN class of models and several of their variants so that any lingering uncertainty can be dispelled.