CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth

Ventilation systems maintain thermal comfort and indoor air quality for the building envelopes, occupants and furnishings. The systems often perform in opposite to the design intents despite its high energy outlay. Hence, the need to provide energy efficient buildings without compromising the desi...

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Main Authors:	Ali, Maisarah, Oladokun, Majeed, Osman, Samsul Bahrin, Samsuddin, Niza, Hamzah, Hairul Aini, Ibrahim, Md Najib
Format:	Article
Language:	English English
Published:	Asian Research Publishing Network (ARPN) 2017
Subjects:	TH7005 Heating and ventilation
Online Access:	http://irep.iium.edu.my/44415/ http://irep.iium.edu.my/44415/ http://irep.iium.edu.my/44415/11/44415-CFD%20INVESTIGATION%20OF%20INDOOR%20HYGROTHERMAL.pdf http://irep.iium.edu.my/44415/12/44415-CFD%20INVESTIGATION%20OF%20INDOOR%20HYGROTHERMAL_SCOPUS.pdf

id	iium-44415
recordtype	eprints
spelling	iium-444152018-04-16T01:27:09Z http://irep.iium.edu.my/44415/ CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth Ali, Maisarah Oladokun, Majeed Osman, Samsul Bahrin Samsuddin, Niza Hamzah, Hairul Aini Ibrahim, Md Najib TH7005 Heating and ventilation Ventilation systems maintain thermal comfort and indoor air quality for the building envelopes, occupants and furnishings. The systems often perform in opposite to the design intents despite its high energy outlay. Hence, the need to provide energy efficient buildings without compromising the design purposes had produced various ventilation performance metrics. This study investigates the effect of Local Mean Age (LMA) of air on indoor thermal and hygric balance as well as mould growth. In-situ experiments were combined with computational fluid dynamics (CFD) simulation to assess the indoor hygrothermal and the airflow profile in a mechanically ventilated research store with known history of mould growth. A commercial CFD analysis with the standard k–ε model was used in the CFD simulation. The measurement and validation of the model are reported in a companion paper. The study found that hygrothermal profiles in the stacks depends on airflow field. In most cases, high hygric profile is synonymous with elevated LMA. The poorest locations in LMA shown highest thermohygric balance and visible mould growth on the stored items. The findings suggest that LMA has a significant effect on hygrothermal stratifications as well as indoor mould growth risk. Asian Research Publishing Network (ARPN) 2017-05 Article PeerReviewed application/pdf en http://irep.iium.edu.my/44415/11/44415-CFD%20INVESTIGATION%20OF%20INDOOR%20HYGROTHERMAL.pdf application/pdf en http://irep.iium.edu.my/44415/12/44415-CFD%20INVESTIGATION%20OF%20INDOOR%20HYGROTHERMAL_SCOPUS.pdf Ali, Maisarah and Oladokun, Majeed and Osman, Samsul Bahrin and Samsuddin, Niza and Hamzah, Hairul Aini and Ibrahim, Md Najib (2017) CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth. ARPN Journal of Engineering and Applied Sciences, 12 (10). pp. 3080-3087. ISSN 1819-6608 http://www.arpnjournals.org/jeas/research_papers/rp_2017/jeas_0517_6013.pdf
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TH7005 Heating and ventilation
spellingShingle	TH7005 Heating and ventilation Ali, Maisarah Oladokun, Majeed Osman, Samsul Bahrin Samsuddin, Niza Hamzah, Hairul Aini Ibrahim, Md Najib CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth
description	Ventilation systems maintain thermal comfort and indoor air quality for the building envelopes, occupants and furnishings. The systems often perform in opposite to the design intents despite its high energy outlay. Hence, the need to provide energy efficient buildings without compromising the design purposes had produced various ventilation performance metrics. This study investigates the effect of Local Mean Age (LMA) of air on indoor thermal and hygric balance as well as mould growth. In-situ experiments were combined with computational fluid dynamics (CFD) simulation to assess the indoor hygrothermal and the airflow profile in a mechanically ventilated research store with known history of mould growth. A commercial CFD analysis with the standard k–ε model was used in the CFD simulation. The measurement and validation of the model are reported in a companion paper. The study found that hygrothermal profiles in the stacks depends on airflow field. In most cases, high hygric profile is synonymous with elevated LMA. The poorest locations in LMA shown highest thermohygric balance and visible mould growth on the stored items. The findings suggest that LMA has a significant effect on hygrothermal stratifications as well as indoor mould growth risk.
format	Article
author	Ali, Maisarah Oladokun, Majeed Osman, Samsul Bahrin Samsuddin, Niza Hamzah, Hairul Aini Ibrahim, Md Najib
author_facet	Ali, Maisarah Oladokun, Majeed Osman, Samsul Bahrin Samsuddin, Niza Hamzah, Hairul Aini Ibrahim, Md Najib
author_sort	Ali, Maisarah
title	CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth
title_short	CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth
title_full	CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth
title_fullStr	CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth
title_full_unstemmed	CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth
title_sort	cfd investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth
publisher	Asian Research Publishing Network (ARPN)
publishDate	2017
url	http://irep.iium.edu.my/44415/ http://irep.iium.edu.my/44415/ http://irep.iium.edu.my/44415/11/44415-CFD%20INVESTIGATION%20OF%20INDOOR%20HYGROTHERMAL.pdf http://irep.iium.edu.my/44415/12/44415-CFD%20INVESTIGATION%20OF%20INDOOR%20HYGROTHERMAL_SCOPUS.pdf
first_indexed	2023-09-18T21:03:09Z
last_indexed	2023-09-18T21:03:09Z
_version_	1777410757639536640

CFD investigation of indoor hygrothermal and airflow profile in academic research storage room: effect of lma on thermohygric balance and mould growth

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