Adaptive thermal comfort model for different climatic zones of North-East India

[en] Thermal comfort standards ISO 7730 and ASHRAE 55-2004 are based on the experimental results conducted in climatic chambers and the adaptive opportunities are usually limited in these experiments. However, in naturally ventilated buildings, adaptive opportunities are not fixed and occupants always have the liberty to modify the opportunities in order to feel comfortable. A comfort survey has been carried out in three different climatic zones of North-East India in four different seasons of a year. Climatic parameters corresponding to actual mean vote (AMV) are recorded during the survey and the values are used to calculate the predicted mean vote (PMV) using ISO 7730 calculation procedures. Results show that the PMV deviates from AMV values. A corrective term ‘adaptive coefficient’ is calculated based on PMV and AMV values and least square method to assess the different adaption used for thermal comfort. Theoretical adaptive models of thermal comfort have been developed based on these adaptive coefficients for the region. The adaptive coefficient values are varying for different seasons and also for different climatic zones. This reflects the various levels of adaptation in different seasons in a particular climatic zone. This adaptive coefficient can be used as a reference to thermal comfort assessment of the buildings and also can be used as dynamic control of the set temperature in the air conditioning system, which will results enormous energy saving. Result of this study also contributes towards the debate over the applicability of PMV model to naturally ventilated building.

Disciplines :

Energy
Civil engineering
Architecture

Author, co-author :

Singh, Manoj Kumar ; Université de Liège - ULiège > Département Argenco : Secteur TLU+C > Urbanisme et aménagement du territoire

Mahapatra, Sadhan; Tezpur University, Assam, India > Energy

Atreya, S.K.; Indian Institute of Technology Delhi, India > IDDC

Language :

English

Title :

Adaptive thermal comfort model for different climatic zones of North-East India

Publication date :

July 2011

Journal title :

Applied Energy

ISSN :

0306-2619

eISSN :

1872-9118

Publisher :

Elsevier Science

Volume :

Issue :

Pages :

2420-2428

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 30 August 2012

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Scopus citations^®

164

Scopus citations^®
without self-citations

150

OpenCitations

119

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