Thermal comforts models for net zero energy buildings in hot climates

Hamza Belkhouane, Jan Hensen, Shady Attia

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationSecond International Conference on Energy and Indoor Environment for Hot Climates
Subtitle of host publicationOutdoor Cooling Technologies, Challenges, and Opportunities for the Hot Climates
Pages132-139
Number of pages8
Publication statusPublished - 2017
Event2nd International Conference on Energy and Indoor Environment for Hot Climates - ASHRAE, HotClimates 2017 - Doha, Qatar
Duration: 26 Feb 201727 Feb 2017

Conference

Conference2nd International Conference on Energy and Indoor Environment for Hot Climates - ASHRAE, HotClimates 2017
CountryQatar
CityDoha
Period26/02/1727/02/17

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