A new type of vented concrete block for zero cooling energy

Name: Khedari, Joseph

Organization : King Mongkut's University of Technology Thonburi. Building Scientific Research Center

Name: Monthana Rungsiyopas

Organization : King Mongkut's University of Technology Thonburi. Building Scientific Research Center

Name: Rangsit Sarachitti

Organization : King Mongkut's University of Technology Thonburi. Building Scientific Research Center

Name: Jongjit Hirunlabh

Organization : King Mongkut's University of Technology Thonburi. Building Scientific Research Center

keyword: Ventilation

; Daylighting

Abstract: This paper reports on the performance of a new prototype of horizontal hollow concrete block. Its innovation is that it can prevent the sight from outside and inside as well while permitting natural ventilation and increasing daylighting without inducing overheating. Investigation included compressive strength testing, indoor temperature, natural ventilation and daylight contribution. Performance were compared using two small houses (WxLxH : 1.2x1.2x2 m) one of them included two rows of the new prototype located near the ceiling and the floor. The experimental observations indicated that with closed window and when the prototype of concrete block was in use in all facades, the temperature difference between non-ventilated and ventilated houses was about 2-3 degree Celsius. This difference is less important (0.5-1 degree Celsius) when the window was open duc to the small volume of house considered. The average air change is about 30-70 that demonstrates the good ability of the new prototype of concrete block to improve indoor conditions. The performance of the prototype of concrete block decreased when the number of walls equipped with vented blocks decreased. The contribution of daylight admitted through the block vents is about 20-500 lux. Finally, the compressive strength is twice that of commercial blocks available in the local market

King Mongkut's University of Technology Thonburi. KMUTT Library.

Address: Bangkok

Email: info.lib@mail.kmutt.ac.th

Created: 2003

Issued: 2010-03-04

Modified: 2010-03-04

บทความ/Article

application/pdf

BibliograpyCitation : Proceedings of the 1st International Conference on Sustainable Energy and Green Architecture (SEGA) 8-10 October 2003 p. GA58-64

CallNumber: 12002546

eng

©copyrights King Mongkut's University of Technology Thonburi

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