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
Permalink -

https://openresearch.lsbu.ac.uk/item/86x1x

Download files

Accepted author manuscript
Sekhar et al. 2018 open access.docx
License: CC BY-NC-ND 4.0
File access level: Open

  • 99
    total views
  • 250
    total downloads
  • 1
    views this month
  • 1
    downloads this month

Export as

Related outputs

Review of Intelligent Control Systems for Natural Ventilation as Passive Cooling Strategy for UK Buildings and Similar Climatic Conditions
Mahmoudi Saber, E., Chaer, I., Gillich, A. and Ekpeti, B. (2021). Review of Intelligent Control Systems for Natural Ventilation as Passive Cooling Strategy for UK Buildings and Similar Climatic Conditions. Energies. 14 (15), p. e4388. https://doi.org/10.3390/en14154388
Reducing carbon footprint and cooling demandin arid climates using an integrated hybrid ventilation and photovoltaic approach
Mahmoudi, S. E. and Elnabaw, M. H. (2021). Reducing carbon footprint and cooling demandin arid climates using an integrated hybrid ventilation and photovoltaic approach. Environment, Development and Sustainability. https://doi.org/10.1007/s10668-021-01571-1
Performance prediction and evaluation on the first balanced energy networks (BEN) part I: BEN and building internal factors
Wang, Y, Gillich, A, Liu, D, Mahmoudi Saber, E., Yebiyo, M, Kang, R, Ford, A and Hewitt, M (2021). Performance prediction and evaluation on the first balanced energy networks (BEN) part I: BEN and building internal factors. Energy. 221, pp. 119797-119797. https://doi.org/10.1016/j.energy.2021.119797
Model predictive control of non-domestic heating using genetic programming dynamic models
Mahmoudi Saber, E. (2020). Model predictive control of non-domestic heating using genetic programming dynamic models. Applied Soft Computing . 97 (B), pp. 106695-106695. https://doi.org/10.1016/j.asoc.2020.106695
GPML: an XML-based standard for the interchange of genetic programming trees
Esmail Saber (2019). GPML: an XML-based standard for the interchange of genetic programming trees. Genetic Programming and Evolvable Machines . 11. https://doi.org/10.1007/s10710-019-09370-4
Limits and uncertainty for energy efficiency in the UK housing stock
Gillich, A., Mahmoudi Saber, E. and Mohareb, E. (2019). Limits and uncertainty for energy efficiency in the UK housing stock. Energy Policy. 133. https://doi.org/10.1016/j.enpol.2019.110889
Performance evaluation of damper control settings for operation of multiple-zone variable air volume reheat system in different building applications and climate types
Mahmoudi Saber, E. (2017). Performance evaluation of damper control settings for operation of multiple-zone variable air volume reheat system in different building applications and climate types. Building Simulation. 10 (5), pp. 687-696. https://doi.org/10.1007/s12273-017-0353-4
A review of high temperature cooling systems in tropical buildings
Mahmoudi Saber, E., Tham, KW and Leibundgut, H (2016). A review of high temperature cooling systems in tropical buildings. Building and Environment. 96, pp. 237-249. https://doi.org/10.1016/j.buildenv.2015.11.029
Performance evaluation of low exergy systems depicting decentralized dedicated outdoor air system coupled with radiant cooling in the tropics
Mahmoudi Saber, E. (2016). Performance evaluation of low exergy systems depicting decentralized dedicated outdoor air system coupled with radiant cooling in the tropics. PhD Thesis National University of Singapore Department of Building
HARNESSING DAYLIGHTING AND SOLAR GAINS AS SUSTAINABLE ARCHITECTURAL DESIGNMETHODSIN MIXED-USE DEVELOPMENTS IN LAGOS, NIGERIA.
Mahmoudi Saber, E., Chaer, I. and Ekpeti, B. (2015). HARNESSING DAYLIGHTING AND SOLAR GAINS AS SUSTAINABLE ARCHITECTURAL DESIGNMETHODSIN MIXED-USE DEVELOPMENTS IN LAGOS, NIGERIA. CIBSE Technical Symposium. London 16 - 17 Apr 2015 CIBSE.
Ventilation effectiveness and contaminant distribution in an occupied space conditioned with low exergy ventilation technologies in the tropics
Mahmoudi Saber, E., Mast, M, Tham, KW and Leibundgut, H (2015). Ventilation effectiveness and contaminant distribution in an occupied space conditioned with low exergy ventilation technologies in the tropics. Healthy Buildings 2015 Europe. Eindhoven, Netherlands 18 - 20 May 2015 London South Bank University.
PV (photovoltaics) performance evaluation and simulation-based energy yield prediction for tropical buildings
Mahmoudi Saber, E., Lee, SE, Manthapuri, S, Yi, W and Deb, C (2014). PV (photovoltaics) performance evaluation and simulation-based energy yield prediction for tropical buildings. Energy. 71, pp. 588-595. https://doi.org/10.1016/j.energy.2014.04.115
Numerical Modelling of an Indoor Space Conditioned with Low Exergy Cooling Technologies in the Tropics
Mahmoudi Saber, E., Mast, M, Tham, KW and Leibundgut, H (2014). Numerical Modelling of an Indoor Space Conditioned with Low Exergy Cooling Technologies in the Tropics. 13th International Conference on Indoor Air Quality and Climate. Hong Kong 07 - 12 Jul 2014 London South Bank University.
Thermal comfort and IAQ analysis of a decentralized DOAS system coupled with radiant cooling for the tropics
Mahmoudi Saber, E., Iyengar, R, Mast, M, Meggers, F, Tham, KW and Leibundgut, H (2014). Thermal comfort and IAQ analysis of a decentralized DOAS system coupled with radiant cooling for the tropics. Building and Environment. 82, pp. 361-370. https://doi.org/10.1016/j.buildenv.2014.09.001
Stuck in a stack—Temperature measurements of the microclimate around split type condensing units in a high rise building in Singapore
Bruelisauer, M, Meggers, F, Mahmoudi Saber, E., Li, C and Leibundgut, H (2013). Stuck in a stack—Temperature measurements of the microclimate around split type condensing units in a high rise building in Singapore. Energy and Buildings. 71, pp. 28-37. https://doi.org/10.1016/j.enbuild.2013.11.056