Field study on indoor thermal environment in an atrium in tropical climates

Abd Halid Abdullah, Qinglin Meng, Lihua Zhao, Fan Wang

    Research output: Contribution to journalArticlepeer-review

    40 Citations (Scopus)

    Abstract

    Solar penetration through the transparent envelope can severely deteriorate indoor thermal environment inside an atrium building particularly in tropical climates. This paper reports the application of two low-cost measures, namely high level internal solar blinds and water spray, to minimise overheating problems on the three levels inside the atrium of a guesthouse in Southern China, where summer is hot and humid. The blinds reduce direct solar penetration at the top of the atrium whilst the evaporative spray system cools down the glazed surfaces of the atrium envelope. A site test was undertaken over 10 consecutive days covering both overcast days and clear days in July 2004. Measurement of indoor thermal environmental parameters was conducted on three levels in the atrium and the recorded data represent the internal conditions: with and without internal blinds protection from solar, and with and without water spray. This study has shown that on hot and clear summer days, with water spray and without blinds the average air temperature difference from 1200 to 1800 h between both first floor and second floor, and second floor and external were 5.7 and 1.7 K, respectively; whilst with blinds and without water spray the average air temperature differences were 8.7 and 4.8 K, respectively. © 2008 Elsevier Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)431-436
    Number of pages6
    JournalBuilding and Environment
    Volume44
    Issue number2
    DOIs
    Publication statusPublished - Feb 2009

    Keywords

    • Atrium
    • Evaporative cooling
    • Solar blinds
    • Solar radiations
    • Thermal stratification

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