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Benchmarking indoor headroom heights of residential buildings based on ASHRAE Standard 55

Benchmarking indoor headroom heights of residential buildings based on ASHRAE Standard 55
Benchmarking indoor headroom heights of residential buildings based on ASHRAE Standard 55
The continuous design of residential buildings without comprehensive attention to the vital form and envelope related decision-making steps has necessitated this study. The research aims to uncover the impact of headroom heights of different residential buildings on indoor operative temperature (Top), influenced by mean radiant temperature (MRT). Based on an adaptive approach, we conducted field measurements of indoor headroom heights, thermal comfort variables and interview surveys in 200 households around Kebbi, Nigeria. We used CFD simulations to estimate MRT and Top for a wide range of base-case headroom models. We finally used ASHRAE Standard 55 thermal comfort tool to evaluate comfort level in each model. Using the measured variables, results show that Top of occupants in models with headrooms between 2.2 m and 2.75 m fell outside the comfort zone and Top of occupants in models with headrooms between 3.25 m and 3.75 m are within acceptable limits.
1750-8975
109-130
Tajuddeen, Ibrahim
f2b426f1-371b-45e2-8d77-c1ab86b4bb3f
Sajjadian, Seyed Masoud
f08f9a9d-5aee-4844-b4f9-b8f8fb454b5d
Tajuddeen, Ibrahim
f2b426f1-371b-45e2-8d77-c1ab86b4bb3f
Sajjadian, Seyed Masoud
f08f9a9d-5aee-4844-b4f9-b8f8fb454b5d

Tajuddeen, Ibrahim and Sajjadian, Seyed Masoud (2023) Benchmarking indoor headroom heights of residential buildings based on ASHRAE Standard 55. Intelligent Buildings International, 15 (3), 109-130. (doi:10.1080/17508975.2023.2221840).

Record type: Article

Abstract

The continuous design of residential buildings without comprehensive attention to the vital form and envelope related decision-making steps has necessitated this study. The research aims to uncover the impact of headroom heights of different residential buildings on indoor operative temperature (Top), influenced by mean radiant temperature (MRT). Based on an adaptive approach, we conducted field measurements of indoor headroom heights, thermal comfort variables and interview surveys in 200 households around Kebbi, Nigeria. We used CFD simulations to estimate MRT and Top for a wide range of base-case headroom models. We finally used ASHRAE Standard 55 thermal comfort tool to evaluate comfort level in each model. Using the measured variables, results show that Top of occupants in models with headrooms between 2.2 m and 2.75 m fell outside the comfort zone and Top of occupants in models with headrooms between 3.25 m and 3.75 m are within acceptable limits.

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More information

Published date: 1 July 2023

Identifiers

Local EPrints ID: 511027
URI: http://eprints.soton.ac.uk/id/eprint/511027
ISSN: 1750-8975
PURE UUID: 0c03eaa0-d9da-4850-8599-5bd05d0dcc4b
ORCID for Seyed Masoud Sajjadian: ORCID iD orcid.org/0000-0001-5610-0498

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Date deposited: 28 Apr 2026 17:05
Last modified: 29 Apr 2026 02:18

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Contributors

Author: Ibrahim Tajuddeen
Author: Seyed Masoud Sajjadian ORCID iD

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