Adaptable cooling coil performance during part loads in the tropics - A computational evaluation

Journal article

Sekhar, C, Anand, P, Schiavon, S, Tham, KW, Cheong, D and Mahmoudi Saber, E. (2017). Adaptable cooling coil performance during part loads in the tropics - A computational evaluation. Energy and Buildings. 159, pp. 148-163. https://doi.org/10.1016/j.enbuild.2017.10.086
AuthorsSekhar, C, Anand, P, Schiavon, S, Tham, KW, Cheong, D and Mahmoudi Saber, E.
Abstract

Air conditioning and mechanical ventilation systems may be oversized in commercial buildings in the Tropics. Oversized cooling coils may lead to reduced dehumidifying performance, indoor air quality and thermal comfort and increased energy consumption. In this paper, an adaptable cooling coil design is assessed with a general-purpose coil selection software tool, in which the number of active rows changes as a function of the load. For a 100% oversized coil, it is shown that the adaptable cooling coil is able to provide small but relevant improved humidity control down to 25% of the design load. This was obtained without affecting energy performance in typical variable air volume design and control. For specific applications, where variable air volume systems mainly control space humidity, there are also energy savings. The adaptable cooling coil could be seen as providing additional flexibility in the operation of HVAC systems, particularly in the tropics.

Keywords09 Engineering; 12 Built Environment And Design; Building & Construction
Year2017
JournalEnergy and Buildings
Journal citation159, pp. 148-163
PublisherElsevier
ISSN0378-7788
Digital Object Identifier (DOI)https://doi.org/10.1016/j.enbuild.2017.10.086
Publication dates
Print01 Nov 2017
Publication process dates
Deposited05 Feb 2018
Accepted25 Oct 2017
Accepted author manuscript
License
File Access Level
Open
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