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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Asian Research Publishing Network (ARPN)
2017
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| Online Access: | 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 |
| _version_ | 1848782603897798656 |
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| 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 |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T16:08:05Z |
| format | Article |
| id | iium-44415 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T16:08:05Z |
| publishDate | 2017 |
| publisher | Asian Research Publishing Network (ARPN) |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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 |
| 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 |
| title | 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_short | 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 |
| topic | TH7005 Heating and ventilation |
| 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 |