Summer thermal discomfort in substandard housing with openable windows in Hong Kong

Pui Kwan CHEUNG, Chi Yung JIM

Research output: Contribution to journalArticlespeer-review

Abstract

The sub-divided unit (SDU) is the major type of substandard housing in Hong Kong. This study monitored the microclimatic conditions in eight SDUs for 24 h in summer. The mean CO₂ concentration (1012 mg/m³) under natural ventilation was much higher than the outdoor level (∼410 mg/m³), suggesting that ventilation was ineffective in most SDUs. The mean predicted mean vote (PMV) was 1.7 (warm), corresponding to 75% predicted percentage dissatisfied (PPD). None of the SDUs was thermally acceptable (PPD < 20%) at any time in the monitoring period. If the adaptive thermal comfort standard was considered, the acceptable temperature range would be between 23.4 °C and 30.4 °C in operative temperature and the thermally acceptable time would be 47%. Larger openable window size, larger external wall area and poor ventilation significantly contributed to higher maximum indoor air temperature. Copyright © 2021 Informa UK Limited.
Original languageEnglish
Pages (from-to)462-476
JournalScience and Technology for the Built Environment
Volume27
Issue number4
Early online date16 Dec 2020
DOIs
Publication statusPublished - 2021

Citation

Cheung, P. K., & Jim, C. Y. (2021). Summer thermal discomfort in substandard housing with openable windows in Hong Kong. Science and Technology for the Built Environment, 27(4), 462-476. doi: 10.1080/23744731.2020.1855934

Fingerprint

Dive into the research topics of 'Summer thermal discomfort in substandard housing with openable windows in Hong Kong'. Together they form a unique fingerprint.