Performance analysis and optimisation of the chiller-air handling units system with a wide range of ambient temperature

Nur I. Zulkafli, Mohamad F. Sukri, Musthafah Mohd Tahir, Asjufri Muhajir, Dawid P. Hanak

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Abstract

The integrated optimisation modelling for the chiller-air handling units system is developed for increasing the efficiency and energy utilisation of system. A building management system in the chillers network controls the cooling load to ensure the specified desired set temperature of the cooling air within the building can be satisfied. Unfortunately, the desired set point temperature of the cooling air is a fixed value and does not vary with the dynamic change of cooling demand with different ambient temperatures. Therefore, the power consumption of the chillers and the building cooling requirement with a wide range of different ambient temperatures is properly modelled by optimising the performance of chillers, air handling units, cooling towers, and water pumps. The linear programming model for the system is established to model a real representation of the chiller-air handling unit system. The result shows that the optimal coefficient of performance is greater by about 7%–10% than the current chiller system. The optimal power consumption of the chiller system reduces to 3%. Overall, the optimal decision solutions could be used as the potential improvement strategy to control the desired set point values in the building management system for efficient chiller-AHU system.

Original languageEnglish
Article number100643
Number of pages16
JournalCleaner Engineering and Technology
Volume14
Early online date22 May 2023
DOIs
Publication statusPublished - 1 Jun 2023

Bibliographical note

Funding Information:
This study is supported by the Universiti Teknikal Malaysia Melaka for giving financial and research support through the Short Term Research Grant ( PJP/2021/FKM/S01809 ).

Publisher Copyright:
© 2023

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