On-Site Study the Influences of Load Factor on Power Consumption and Performance of Air Conditioning System for a Commercial Building

Suamir, I Nyoman and Arsana, Made Ery and Sudirman, Sudirman and Temaja, I Wayan and Wibolo, Achmad (2020) On-Site Study the Influences of Load Factor on Power Consumption and Performance of Air Conditioning System for a Commercial Building. In: International Conference on Applied Science and Technology (iCAST on Engineering Science), 24 - 25 Octobre 2019, Bali, Indonesia.

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Abstract

On-site study was held to investigate the influences of load factor on power consumption and energy performance of water-cooled air conditioning (WCAC) system. A comprehensive measurement has been conducted to a WCAC plant of a supermall building located in West Java, Indonesia. Hourly and daily power consumption and performance characteristics of the WCAC system at varied load factors for a period of one year were evaluated. Regression analyses were developed to evaluate the influences of load factor on the WCAC power consumption and performance. The WCAC system was found to operate with varied load factor ranging from 70 percent to 100 percent. Power consumption of the system was strongly influenced by the load factor. Power consumption boosted when the power factor increased. The increase of load factor was also found to significantly improve the cooling capacity but reduce the coefficient of performance (COP). The best potential performance of the investigated WCAC system could be obtained at load factor between 70 percent and 85 percent.

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