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Thermal comfort models for net zero energy buildings in hot climates
Belkhouane, Hamza; Hensen, Jan; Attia, Shady
2017In Second International Conference on Energy and Indoor Environment for Hot Climates
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Keywords :
energy efficiency; office buildings; adaptive comfort; recommendations
Abstract :
[en] Several energy efficiency concepts and comfort models emerged in the last 15 years seeking high performance buildings and optimal occupant comfort conditions. The aim of high performance buildings is to reduce the carbon footprint and energy consumption of buildings while maintain a fit to purpose comfort. In this context, this work raises the question of fir to purpose comfort models that can from one side reduce the energy consumption of typical office buildings in hot climates (cooling dominated) while on the other side ensuring indoor thermal comfort. Indeed, studies that address energy efficiency are many, however it is in most cases applied to temperate or cold climates and barely explored for hot climates. The objective of this paper is to (1) combine several comfort models for a net zero energy building in hot climates, (2) select the comfort model that shows the optimal comfort quality of indoor environment and (3) compare the building's annual energy consumption for each used comfort model. To respond to our research problems, a methodology has been established, which goes through several phases. First identifying the different comfort models comfortable to use in hot climates (ISO 7730 / EN 15251 / adaptive ASHRAE / Givoni), secondly selecting a typical validated office building model as a reference building and finally selecting representative cities in the Mediterranean arid and hot climate (Algiers / Sicily / Cairo / Dubai). The study used building performance simulation to generate the different results on the energy consumption and the operative temperatures of the different models of comfort in each city. The paper ultimately identifies the fit to purpose comfort models for a medium size net zero energy office building in hot climates. The paper presents a comparison that can help building professional to identify the most appropriate comfort model that allows optimizing energy consumption, ensuring thermal comfort for robust perfromnce of net zero energy buildings in hot climates.
Research center :
Sustainable Buildings Design Lab
Disciplines :
Architecture
Author, co-author :
Belkhouane, Hamza ;  Université de Liège - ULiège > Master ingé. civ. arch., à fin.
Hensen, Jan
Attia, Shady  ;  Université de Liège > Département ArGEnCo > Techniques de construction des bâtiments
Language :
English
Title :
Thermal comfort models for net zero energy buildings in hot climates
Publication date :
26 February 2017
Event name :
Second International Conference on Energy and Indoor Environment for Hot Climates
Event organizer :
ASHRAE
Event place :
Doha, Qatar
Event date :
26.02.2017
Audience :
International
Main work title :
Second International Conference on Energy and Indoor Environment for Hot Climates
Peer reviewed :
Peer reviewed
Name of the research project :
Sustainable Buildings Design Lab
Available on ORBi :
since 26 January 2017

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