AIR FLOW PATTERN AROUND AIR-COOLED CHILLERS FOR OPTIMUM OPERATION

摘要

Airflow, heat transfer and contaminant transport in and around a chiller have been investigated using Computational fluid dynamics (CFD). A CFD model is built upon fundamental physical equations of fluid flow and energy transfer. The technique is capable of providing time dependent and as well as steady state solutions to the coupled differential equations that govern fluid flows. Its key benefits are; an ability to represent the effects of very complex geometries coupled with a means to solve complex flow problems based on a more fundamental modeling of the physics involved. However, a number of assumptions and approximations are made throughout: both in formulating and constructing a CFD tool, as well as in its application to this particular design problem. A fairly good agreement was observed between the current calculations and previous measurements.