CALCULATION OF BUILDING COOLING LOADS USING LOCAL WEATHER DATA

Abstract

In large buildings, about 60% of the building's total energy requirements are allocated to an HVAC system installed for the purpose of cooling. The objective of this study is to calculate the cooling load depending on the local climatic conditions. A building (library) with dimensions of 17 m x 13 m x 3.5 m was taken as a case study. In this research, the cooling loads are calculated by using CLTD/CLF method. Appropriate codes were created based on the MATLAB program V.2014b. The local climatic data were obtained in detail for an average (20 years) from the Meteonorm program version 8.0.3. According to the heat gain analysis performed from April to October, the results showed that the high load occurs in August and July, respectively. The peak cooling load for August was on the 19th of August, which was 48.6 kW, and the peak cooling load for July was on the 21st of July, which was 45.6 kW. This indicates that the maximum cooling load during summer occurs on August 19. The possibility of applying the program to any of the hot regions, and we can use it to predict how changes in climatic data will affect the cooling systems, and plan accordingly.