Reduction of energy consumption by AC due to air tightness and ventilation strategy in residences in hot and humid climates

Uno, Tomoko and Hokoi, Shuichi and N. Ekasiwi, Sri Nastiti and Abdul Majid, Noor Hanita (2012) Reduction of energy consumption by AC due to air tightness and ventilation strategy in residences in hot and humid climates. Journal of Asian Architecture and Building Engineering, 11 (2). pp. 407-414. ISSN 1347-2852 (O), 1346-7581 (P),

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Abstract

This paper proposes strategies for reducing energy consumption for cooling in residences in hot and humid climates.Based on the results of fieldwork measurements and questionnaire surveys, a simulation of indoor thermal environments in consideration of AC operation was carried out, in order to evaluate energy consumption by AC.This simulation program takes into account both heat and moisture conductivity in building materials.The combined effects of building air-tightness and the opening time of doors and windows for ventilation were examined.Making the entire building airtight results in a small reduction in energy consumption, since the air-conditioned area increases.Irrespective of this, night-time ventilation of non-air-conditioned spaces is quite effective in reducing sensible cooling load.Since energy consumption for cooling is expected to increase rapidly in hot and humid areas along with economic growth and improvement of indoor environment quality, introduction of not only a high degree of insulation but also air-tightness along with well controlled ventilation is required to achieve energy savings.

Item Type:	Article (Journal)
Additional Information:	2995/29036
Uncontrolled Keywords:	Windows and doors opening period (ventilation operating time), Air-tightness,Energy consumption for air conditioners,Hot and humid climate
Subjects:	N Fine Arts > NA Architecture T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Architecture and Environmental Design > Department of Architecture
Depositing User:	Dr Noor Hanita Abdul Majid
Date Deposited:	28 Mar 2013 16:11
Last Modified:	28 Mar 2013 16:11
URI:	http://irep.iium.edu.my/id/eprint/29036

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