Indoor air of a double-storey residential house in Malaysia

This paper presents an investigation on the effects of using solar chimney, gable vent, and the combination of the two natural ventilations on the average air temperature and air-flow condition inside a double-storey house in Malaysia, using computational fluid dynamics (CFD) method. The representat...

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Main Authors: Kamar, H. M., Kamsah, N., Liq, K. J.
Format: Article
Published: Penerbit Akademia Baru 2017
Subjects:
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author Kamar, H. M.
Kamsah, N.
Liq, K. J.
author_facet Kamar, H. M.
Kamsah, N.
Liq, K. J.
author_sort Kamar, H. M.
collection ePrints
description This paper presents an investigation on the effects of using solar chimney, gable vent, and the combination of the two natural ventilations on the average air temperature and air-flow condition inside a double-storey house in Malaysia, using computational fluid dynamics (CFD) method. The representative model of the house comprises of a main hall, a kitchen and an upper hall. Both temperature and air velocity boundary conditions were prescribed on the model. Results of the simulation indicates that the average temperature of the air in the house at 1 pm closely matched the measured values. It was found that the average temperature of the air in the house is not so significantly affected by the types of natural ventilation used. Opening the kitchen door causes the air to flow from the main and upper halls towards the kitchen and causing a bottle neck at the pathways. A more uniform air flow is obtained when solar chimneys are used. When gable vents are used, high intensity air flow occurs in the main hall and it spreads uniformly towards the kitchen and upper hall. The air-flow intensity becomes even higher in the main and upper halls when a combination of solar chimney and gable vents are incorporated into the CFD model.
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spelling utm.eprints-764002019-05-12T04:59:58Z http://eprints.utm.my/76400/ Indoor air of a double-storey residential house in Malaysia Kamar, H. M. Kamsah, N. Liq, K. J. TJ Mechanical engineering and machinery This paper presents an investigation on the effects of using solar chimney, gable vent, and the combination of the two natural ventilations on the average air temperature and air-flow condition inside a double-storey house in Malaysia, using computational fluid dynamics (CFD) method. The representative model of the house comprises of a main hall, a kitchen and an upper hall. Both temperature and air velocity boundary conditions were prescribed on the model. Results of the simulation indicates that the average temperature of the air in the house at 1 pm closely matched the measured values. It was found that the average temperature of the air in the house is not so significantly affected by the types of natural ventilation used. Opening the kitchen door causes the air to flow from the main and upper halls towards the kitchen and causing a bottle neck at the pathways. A more uniform air flow is obtained when solar chimneys are used. When gable vents are used, high intensity air flow occurs in the main hall and it spreads uniformly towards the kitchen and upper hall. The air-flow intensity becomes even higher in the main and upper halls when a combination of solar chimney and gable vents are incorporated into the CFD model. Penerbit Akademia Baru 2017 Article PeerReviewed Kamar, H. M. and Kamsah, N. and Liq, K. J. (2017) Indoor air of a double-storey residential house in Malaysia. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 31 (1). pp. 11-18. ISSN 2289-7879 http://www.akademiabaru.com/doc/ARFMTSV31_N1_P11_18.pdf
spellingShingle TJ Mechanical engineering and machinery
Kamar, H. M.
Kamsah, N.
Liq, K. J.
Indoor air of a double-storey residential house in Malaysia
title Indoor air of a double-storey residential house in Malaysia
title_full Indoor air of a double-storey residential house in Malaysia
title_fullStr Indoor air of a double-storey residential house in Malaysia
title_full_unstemmed Indoor air of a double-storey residential house in Malaysia
title_short Indoor air of a double-storey residential house in Malaysia
title_sort indoor air of a double storey residential house in malaysia
topic TJ Mechanical engineering and machinery
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AT kamsahn indoorairofadoublestoreyresidentialhouseinmalaysia
AT liqkj indoorairofadoublestoreyresidentialhouseinmalaysia