Parameter estimation and the use of catlog data with TRNSYS

General models for heat and mass transfer components have been developed for use in TRNSYS [1] thermal system simulations. These components remove some of the idealizations and detailed specifications that are required in existing TRNSYS component models. In these new component formulations, a set of parameters characterizing the performance of the component are fit using catalog data. This paper presents a technique for parameter estimation that can be used with realistic models to accurately represent equipment performance. The new models are formulated for three heat and mass transfer devices: sensible heat exchangers, chilled water cooling coils, and direct expansion cooling coils. The performance of the components using the parameter estimation routine is evaluated.