Please use this identifier to cite or link to this item:
Title: Evaluating and adapting low exergy systems with decentralized ventilation for tropical climates
Authors: Meggers, F.
Pantelic, J. 
Baldini, L.
Saber, E.M.
Kim, M.K.
Keywords: Cooling
Decentralized ventilation
Low exergy systems
Tropical climate
Issue Date: 2013
Citation: Meggers, F., Pantelic, J., Baldini, L., Saber, E.M., Kim, M.K. (2013). Evaluating and adapting low exergy systems with decentralized ventilation for tropical climates. Energy and Buildings 67 : 559-567. ScholarBank@NUS Repository.
Abstract: The use of low exergy high temperature radiant cooling in the tropics is only possible with adequate dehumidification. We analyze the adaption of a decentralized ventilation system to supply dehumidified air using models and experimental prototypes. The decentralized air supply prototype was developed and initially tested at the ETH Zurich, then installed in a building laboratory that was shipped to Singapore-ETH Centre, and it was modeled and evaluated in collaboration with the National University of Singapore. We present the findings on its performance and ability to mitigate the risk of condensation for high performance radiant cooling surfaces for buildings in the tropics from models and experiments. We show that adequate dehumidification can be achieved in the decentralized supply unit by our expanded cooling coil. Our model shows that when the supply air has a humidity ratio of 13 g/kg then sufficient mitigation of condensation on the chilled panels is achieved. Experiments in the laboratory showed supply air down to 11 g/kg, which should be sufficient, but also showed the potentially large impact of infiltration of humid outdoor air in the tropics because humidity in the space remained higher than expected, and was also very sensitive to infiltration in our models. © 2013 Elsevier B.V. All rights reserved.
Source Title: Energy and Buildings
ISSN: 03787788
DOI: 10.1016/j.enbuild.2013.08.015
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Sep 29, 2022


checked on Sep 29, 2022

Page view(s)

checked on Sep 22, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.