Effect of Outside Temperature Change on Energy Consumption in Chiller Machine

Abstract

Maintenance of industrial manufacturing facilities, especially cleanrooms, is very important to ensure smooth operations and the quality of the products produced. One component that requires special attention is the heating, ventilation and air conditioning (HVAC) system. The HVAC system is used to maintain the temperature in the room to keep it as desired, with the chiller machine as the main component that functions to ensure the room temperature still meets the needs. This study aims to look at the effect of changes in outside temperature on the energy consumption of the chiller machine and the impact on the performance of the cooling system. The effect or correlation between the outside temperature and the power consumption of the chiller machine is used a linear regression method approach to determine the relationship between the two variables. Hypothesis testing is also carried out to verify whether the relationship between the two variables is statistically significant or only occurs by chance The results showed that the outside temperature has a strong significant effect on the energy consumption of the chiller machine with a proportional increase represented by a correlation coefficient of 0.971. The increase in outside temperature tends to increase the workload of the chiller engine so that energy consumption also increases. This is done to maintain a stable temperature in the cleanroom area.