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Title: Semantics of outdoor thermal comfort in religious squares of composite climate: New Delhi, India
Authors: Manavvi S.
Rajasekar, Elangovan
Published in: International Journal of Biometeorology
Abstract: Religious spaces are an integral part of Indian cities. Unique in their spatiality, they function as socio-cultural hubs drawing users from varied economic and social hierarchies. This study deals with physical and perceptional assessments of micrometeorological conditions in two religious squares namely Hanuman Mandir Square (HMS) and Gurudwara Bangla Sahib Square (GBS) located in New Delhi (28.6° N; 77.2° E), India. The study involved real-time physical measurement of environmental variables such as dry-bulb temperature (Ta, °C), globe temperature (Tg, °C), relative humidity (RH), and air velocity (Va). Variables such as physiological effective temperature (PET), universal thermal comfort index (UTCI), and mean radiant temperature (Tmrt, °C) were computed from measured variables. Concurrent thermal comfort surveys were carried out with 353 respondents in both the squares. The paper describes the thermal characteristics of the studied squares and presents the associated subjective thermal response and preferences of the users. PET was found to correlate well with the subjective responses. The neutral value of PET is found to be 24.7 °C. The neutral PET value of respondents visiting for non-worship purposes was found to be 2.7 °C lesser than those visiting for worship purposes. People visiting the squares for non-worship purpose however were found to be more tolerant of higher PET conditions as compared to others. Factors such as intent of visit, solar exposure, thermal history, and landscape elements were found to have a statistically significant influence on the thermal perception. The paper further summarizes the adaptive opportunities preferred by the users in order to improve thermal comfort in the studied squares. A weighted ranking of adaptive preferences reported by the respondents has also been presented. © 2019, ISB.
Citation: International Journal of Biometeorology(2020), 64(2): 253-264
Issue Date: 2020
Publisher: Springer
Keywords: semantics
temperature sense
ISSN: 207128
Author Scopus IDs: 57208222086
Author Affiliations: Manavvi, S., Department of Architecture and Planning, Indian Institute of Technology, Roorkee, India
Rajasekar, E., Department of Architecture and Planning, Indian Institute of Technology, Roorkee, India
Funding Details: The authors wish to acknowledge the support of administrative authorities for conducting the field studies. Further, the authors are extremely grateful to the reviewers whose valuable and insightful comments helped shape this paper.
Corresponding Author: Manavvi, S.; Department of Architecture and Planning, Indian Institute of TechnologyIndia; email:
Appears in Collections:Journal Publications [AR]

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