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Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution

Abstract: Ships often report poor indoor air quality (IAQ) due to their enclosed and confined spaces. The main factor contributing to poor IAQ onboard was the inefficiency of the heating, ventilation, and air conditioning (HVAC) systems. Poor IAQ adversely affects the health of the crew, which can i...

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Main Authors: Awang, Mohd Naim, Zahaba, Maryam, Azmir, Nor Azali
Format: Proceeding Paper
Language:English
English
Published: GLOBAL ACADEMIC EXCELLENCE (M) SDN BHD 2024
Subjects:
Q Science (General)
QD Chemistry
TA Engineering (General). Civil engineering (General)
U Military Science (General)
Online Access:http://irep.iium.edu.my/117456/7/117456_Predicting%20indoor%20air%20quality%20%28IAQ%29%20on%20naval%20ship.pdf
http://irep.iium.edu.my/117456/1/FULL%20PROCEEDING%208TH%20ICEBIT%202024_V1.pdf
http://irep.iium.edu.my/117456/
https://submit.confbay.com/conf/8icebit
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spelling my.iium.irep.1174562025-01-04T03:31:36Z http://irep.iium.edu.my/117456/ Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution Awang, Mohd Naim Zahaba, Maryam Azmir, Nor Azali Q Science (General) QD Chemistry TA Engineering (General). Civil engineering (General) U Military Science (General) Abstract: Ships often report poor indoor air quality (IAQ) due to their enclosed and confined spaces. The main factor contributing to poor IAQ onboard was the inefficiency of the heating, ventilation, and air conditioning (HVAC) systems. Poor IAQ adversely affects the health of the crew, which can indirectly cause Sick Boat syndrome (SBoS). Therefore, close monitoring of HVAC efficiency and IAQ on naval ships is crucial, as these vessels serve as the operational homes for our nation's front liners. This paper aims to analyse air distribution from the HVAC system by simulating the temperature, carbon dioxide (CO₂), and particulate matter (PM2.5) within the designated ship’s compartment. Using NoiseAtWork software, a contour mapping method was employed to visualise the spatial distribution of selected IAQ parameters. Before that, real-time sampling of selected IAQ parameters was done on the bridge. The contour map of the air distribution revealed that open hatches affected the dispersion of CO₂ and PM2.5, leading to variations in concentration contours within the area. PM2.5 map showed PM2.5 accumulation, possibly due to old dust from the ducting and diffusers. Although temperature distribution was even, it did not comply with ICOP IAQ 2010 standards. This study underscores the importance of air distribution prediction, thus highlighting the necessity for crew adherence to the best practices, such as closing the hatch, and perform maintenance including ducting cleaning as recommended by the design systems or the class society to maintain healthy indoor environments. Therefore, by using NoiseAtWork, the contour mapping method can help to predict the influence of HVAC efficiency and operational practices on IAQ. This method is valuable for identifying the optimal HVAC component configurations such as the best location of an air diffuser for the new shipbuilding project. Ensuring proper air circulation throughout the ship will enhance HVAC system efficiency and improve the IAQ onboard. GLOBAL ACADEMIC EXCELLENCE (M) SDN BHD 2024-12 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/117456/7/117456_Predicting%20indoor%20air%20quality%20%28IAQ%29%20on%20naval%20ship.pdf application/pdf en http://irep.iium.edu.my/117456/1/FULL%20PROCEEDING%208TH%20ICEBIT%202024_V1.pdf Awang, Mohd Naim and Zahaba, Maryam and Azmir, Nor Azali (2024) Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution. In: 8th International Conference on Education, Business, Islamic and Technology 2024, 30th Nov - 1st Dec 2024, Dorsett Hotel, Putrajaya, Malaysia. https://submit.confbay.com/conf/8icebit
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
topic Q Science (General)
QD Chemistry
TA Engineering (General). Civil engineering (General)
U Military Science (General)
spellingShingle Q Science (General)
QD Chemistry
TA Engineering (General). Civil engineering (General)
U Military Science (General)
Awang, Mohd Naim
Zahaba, Maryam
Azmir, Nor Azali
Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution
description Abstract: Ships often report poor indoor air quality (IAQ) due to their enclosed and confined spaces. The main factor contributing to poor IAQ onboard was the inefficiency of the heating, ventilation, and air conditioning (HVAC) systems. Poor IAQ adversely affects the health of the crew, which can indirectly cause Sick Boat syndrome (SBoS). Therefore, close monitoring of HVAC efficiency and IAQ on naval ships is crucial, as these vessels serve as the operational homes for our nation's front liners. This paper aims to analyse air distribution from the HVAC system by simulating the temperature, carbon dioxide (CO₂), and particulate matter (PM2.5) within the designated ship’s compartment. Using NoiseAtWork software, a contour mapping method was employed to visualise the spatial distribution of selected IAQ parameters. Before that, real-time sampling of selected IAQ parameters was done on the bridge. The contour map of the air distribution revealed that open hatches affected the dispersion of CO₂ and PM2.5, leading to variations in concentration contours within the area. PM2.5 map showed PM2.5 accumulation, possibly due to old dust from the ducting and diffusers. Although temperature distribution was even, it did not comply with ICOP IAQ 2010 standards. This study underscores the importance of air distribution prediction, thus highlighting the necessity for crew adherence to the best practices, such as closing the hatch, and perform maintenance including ducting cleaning as recommended by the design systems or the class society to maintain healthy indoor environments. Therefore, by using NoiseAtWork, the contour mapping method can help to predict the influence of HVAC efficiency and operational practices on IAQ. This method is valuable for identifying the optimal HVAC component configurations such as the best location of an air diffuser for the new shipbuilding project. Ensuring proper air circulation throughout the ship will enhance HVAC system efficiency and improve the IAQ onboard.
format Proceeding Paper
author Awang, Mohd Naim
Zahaba, Maryam
Azmir, Nor Azali
author_facet Awang, Mohd Naim
Zahaba, Maryam
Azmir, Nor Azali
author_sort Awang, Mohd Naim
title Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution
title_short Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution
title_full Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution
title_fullStr Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution
title_full_unstemmed Predicting indoor air quality (IAQ) on naval ship: a contour mapping approach to air distribution
title_sort predicting indoor air quality (iaq) on naval ship: a contour mapping approach to air distribution
publisher GLOBAL ACADEMIC EXCELLENCE (M) SDN BHD
publishDate 2024
url http://irep.iium.edu.my/117456/7/117456_Predicting%20indoor%20air%20quality%20%28IAQ%29%20on%20naval%20ship.pdf
http://irep.iium.edu.my/117456/1/FULL%20PROCEEDING%208TH%20ICEBIT%202024_V1.pdf
http://irep.iium.edu.my/117456/
https://submit.confbay.com/conf/8icebit
_version_ 1821105146113818624
score 13.23648

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