Cooling And Heating Load Estimation - A Trane Air Conditioning Clinic(1).pdf

Air ooling and Heating Load EstimationOne of the Fundamental SeriesTRG-TRC002-ENCooling and HeatingLoad EstimationOne of the Fundamental SeriesA publication ofThe pany—Worldwide Applied Systems GroupPreface? 2000 American Standard Inc. All rights reservedTRG-TRC002-ENiiThe pany believes that it is incumbent on manufacturers to serve the industry by regularly disseminating information gathered through laboratory research, testing programs, and field Trane Air Conditioning Clinic series is one means of knowledge sharing. It is intended to acquaint a nontechnical audience with various fundamental aspects of heating, ventilating, and air conditioning. We have taken special care to make the clinic as mercial and straightforward as possible. Illustrations of Trane products only appear in cases where they help convey the message contained in the panying particular clinic introduces the reader to cooling and heating load estimation. It is intended to introduce the concepts of estimating building cooling and heating loads and is limited to introducing ponents that make up the load on a building, the variables that affect each of ponents, and simple methods used to estimate these ponents. It is not intended to teach all the details or puterized techniques of how to calculate these you are interested in learning more about the specific techniques used for cooling and heating load estimating, this booklet includes several references in the 1TRG-TRC002-ENiiiContentsperiod fort .................................................... 1period twoCooling Load Estimation ................................... 8Outdoor Design Conditions ................................... 13Conduction through Surfaces ................................ 14Solar Radiation through Glass ................................ 25Internal Heat Gains ................................................ 32Infiltration .............................................................. 3