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07
Январь 2021

thermal comfort in malaysia

4 the average peak temperature (indoor dry-bulb) of the 5 working days in LEO building (14. th to 18th of September) was 22.0°C at the 15:00h, when outdoor temperature was 30.2°C with a … Thermal Comfort of Residential Building in Malaysia at Different Micro-climates. Thermal comfort studies are necessary in the early stage of building design, especially in tropical climates where buildings are exposed to solar radiation throughout the year. A field study on the environmental condition and occupants' thermal comfort has been carried out in Hospital University Kebangsaan Malaysia (HUKM). 5 Howick Place | London | SW1P 1WG. MALAYSIA HERITAGE MOSQUE As mentioned before, the heritage building can be of many functions, including religious building such as mosque. A field study was conducted to investigate the thermal environment and occupants’ comfort in the National Museum of Malaysia. The results showed that 49% of the occupants were satisfied with the thermal environments in the hospitals. Earlier studies showed that the outdoor thermal comfort range based on physiologically equivalent temperature (PET) index in Malaysia is less than 34°C, thus the data obtained were classified into two state: normal state (within thermal comfort range) and hot state (above thermal comfort range). A field survey was conducted to investigate the temperature range for thermal comfort in hospitals in the tropics. The International Standards such as ASHRAE ISO 7730 Standard 55(deDear et al) is often used to determine the thermal comfort condition in a building by the architects and professionals. The human body can be viewed as a heat engine where food is the input energy. 1993). The thermal comfort has been considered by many as the major influencing factors in the indoor comfort level. Thermal acceptability assessment was conducted to examine whether the hospitals in the tropics met the ASHRAE Standard‐55 80% acceptability criteria. The field survey analysis revealed that the neutral temperature for Malaysian hospitals was 26.4°C. Comfort temperatures were higher than local comfort guidelines, except in Japan. Based on the results, a number of conclusions were drawn. Thermal comfort study of hospital workers in Malaysia. Low air velocity and high air temperature are experienced during the daytime and the wind effect is not well captured, especially in the single sided ventilation. A good house design keeps the indoor environment favorable and comfortable during most of the year without the use of any mechanical devices. Abstract and Figures In hot-humid climate, the mosque should be provided with an acceptable level of thermal comfort in order to seek serenity and focus for worship. The simulations were performed on a selected day in a one–year climate condition. Validation of CFD FloVent was carried out through the comparison of field measurements. This humidity is among the indoor environmental factors that could affect thermal comfort in a building. Journal - The Institution of Engineers, Malaysia (Vol. Copyright © 2021 Elsevier B.V. or its licensors or contributors. This paper presents the main findings of the effect of indoor humidity on occupants’ thermal comfort in the humid tropics of Malaysia. Hence, the studies above demonstrated that natural ventilation certainly provides effects to the indoor thermal comfort. Thermal comfort in buildings - Designing Buildings Wiki - Share your construction industry knowledge. The comfort temperature range that satisfied 90% of … Rijal et al. Other study reported that the comfort band for Malaysia for all building types is between 23.6qC and 28.6qC (Sabarinah & Steven, 2007). Measured indoor climates were also recorded. Use of natural ventilation has been increasingly examined as an energy–efficient means to provide thermal comfort as well as a healthy indoor environment. 1. Overall, indoor temperatures are higher than the indoor design conditions recommended in Malaysian Standard; MS1525:2007. This paper discusses the validation of Computational Fluid Dynamic (CFD) results and the measurement of thermal comfort in Malaysia′s single storey terraced houses. Abstract This article presents findings of the thermal comfort study in hospitals. The human body will release excess heat into the environment, so the body can continue to operate. 72, No.3, September 2011) 37 THERMAL COMFORT ASSESSMENT AT PARCEL AND LOGISTIC INDUSTRY: A FIELD STUDY IN MALAYSIA a running-mean outdoor temperature would save HVAC energy, potentially increase thermal comfort, and accommodate varying clothing behaviors. 3099067 thermal comfort is 0.8 m/s (Yusoff, 2006 & Candido et al. The hot working environment in the industrial increases the challenges of body homeostasis to induce heat stress and interferes with thermal comfort. The highest mean comfort temperature is 27.5 °C with mixed mode ventilation. et.al (1997) Overheating in Malaysian Houses, Proc.Affordable Quality Housing, Samad et.al., UPM, Serdang Selangor, Malaysia. Unfortunately, People also read lists articles that other readers of this article have read. For this problem, there is no specific standard or guideline of heat adaptation for the industrial operators in Malaysia to overcome the problems. Findings suggest that the highest indoor temperature of 32.6 °C was obtained in a master bedroom (MB) in under KL climate at 1400 hours. Therefore, modification of the natural ventilation mechanism using a solar chimney as induced ventilation needs to be manifested and evaluated. Use of natural ventilation has been increasingly examined as an energy–efficient means to provide thermal comfort as well as a healthy indoor environment. Cited by lists all citing articles based on Crossref citations.Articles with the Crossref icon will open in a new tab. Most existing thermal comfort theories, models and methods have failed to predict / describe the actual thermal sensation accurately. Other study reported that the comfort band for Malaysia for all building types is between 23.6 θC and 28.6 θC (Sabarinah & Steven, 2007). A field survey was conducted to investigate the temperature range for thermal comfort in hospitals in the tropics. Thermal comfort is recognised as a key parameter for a healthy and … However, mechanical ventilation systems require high electricity to run. This article presents findings of the thermal comfort study in hospitals. Comparison of the results between simulations and measurements illustrated a good agreement. Peer-review under responsibility of Centre for Environment-Behaviour Studies (cE-Bs), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. Proposal Defense: Outdoor Thermal Comfort and Adaptation for Pedestrian in Towns of Malaysia 6 The overview enhances thermal comfort’s knowledge and understanding of urban open spaces in tropical climate context amongst stakeholders of urban development. Yau YH (1), Chew BT. In this study, thermal comfort in university classrooms in Malaysia and Japan was investigated. conditions of thermal comfort in Malaysia (refer to Table1). This study examines the level of the thermal environment in residential building in Malaysia at various urban micro-climates which are Kuala Lumpur (KL), Bayan Lepas (BL) and Kuching (K). Thermal comfort, also called human comfort, is an individual, subjective assessment and therefore can be difficult to measure. In Malaysia, a typical single terraced house unit consists of a built-up area of 60 to 65 square Other workers recommended similar values, such as 28.7°C (Humphrey 1994), 26.3°C with a clo value of 0.55 (Zain et al. Malaysia is a tropical climate country with hot and humid condition throughout the year. 2011). 2.3. Introduction. Copyright © 2015 The Authors. Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine. When people are dissatisfied with their thermal environment, not only is it a potential health hazard, it also impacts on their ability to function effectively, their satisfaction at work, the likelihood they will remain a customer, and so on. By continuing you agree to the use of cookies. Registered in England & Wales No. A total of 890 individuals were asked to complete a questionnaire. By closing this message, you are consenting to our use of cookies. The results indicated that the design of single storey terraced houses is not effective in providing natural ventilation for achieving thermal comfort. An extensive field investigation was carried out in Kota Kinabalu city and the surrounding areas, located in East Malaysia. The thermal environment and comfort conditions were investigated using field measurement and CFD technique. Under a Malaysian climate, a reasonable thermal comfort temperature inside a house is between 25.5°C and 28.5°C (Jones et al. 1997), and 28.5°C (Gail and De Dear 1998). Published by Elsevier Ltd. Procedia - Social and Behavioral Sciences, https://doi.org/10.1016/j.sbspro.2015.01.063. However, it plays an essential role in the design and maintenance of any facility with live occupants. Abstract and Figures This paper presents the main findings of the effect of indoor humidity on occupants' thermal comfort in the humid tropics of Malaysia. Keywords: thermal comfort, tropical climate, urban village, outdoor spaces, Malaysia A simulation model of a typically-designed residential building in Malaysia was constructed to determine the indoor temperatures in the indoor living spaces, namely living cum dining area (DL), wet kitchen (K) and master bedroom (MB). In a tropical climate, passive cooling is difficult to achieve with respect to mass housing design. Candidate, Faculty of Built Environment, Universiti Teknologi Malaysia, Johor DT, Malaysia, Associate Professor, Faculty of Built Environment, Universiti Teknologi Malaysia, Johor DT, Malaysia, Lecturer, Faculty of Built Environment, Universiti Teknologi Malaysia, Johor DT, Malaysia, Journal of Asian Architecture and Building Engineering. The objective of this paper is to study the air quality in lecture rooms by measuring the content of carbon dioxide (CO 2), humidity and temperature. This paper discusses the validation of Computational Fluid Dynamic (CFD) results and the measurement of thermal comfort in Malaysia′s single storey terraced houses. Cooling by natural ventilation and passive cooling is a good energy conserving design strategy to improve the indoor thermal comfort and air quality in a tropical country like Malaysia, which has high daytime temperatures of 29–34 °C and relative humidity of 70–90% throughout the year. Davis M.P. The occupants’ thermal perceptions in the museum were measured and characterised. We use cookies to help provide and enhance our service and tailor content and ads. Yau and Chew established local adaptive thermal comfort model in Malaysia. We use cookies to improve your website experience. While 70% of respondents voted within the three central TSV points, within the comfortable range, those who admitted to feeling thermally uncomfortable were usually cold, except in FR mode in Japan. Register to receive personalised research and resources by email, A Preliminary Study of Thermal Comfort in Malaysia′s Single Storey Terraced Houses, Lecturer, Faculty of Engineering, Brawijaya University, Malang, Indonesia; Ph.D. Thermal comfort and ventilation modes in Malaysia, Indonesia, Singapore, Japan. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. Thermal comfort is the condition of mind that expresses satisfaction with the thermal environment and is assessed by subjective evaluation (ANSI/ASHRAE Standard 55). In this study, we aimed to determine the summer comfort temperatures in offices in Malaysia, Indonesia, Singapore, and Japan. In this study, the lower and upper air temperatures for thermal comfort was taken to be 26 θC and 23 θC, respectively, as according to Department of Standards Malaysia, 2007. The microclimate condition surrounding the terraced house indicated very low wind speed. Ellis, F.P. Measurements As illustrated in Fig. According to AHSRAE (2010), the recommended value of thermal comfort is 24°C and the value of relative humidity is between 40% to 60%. Corpus ID: 29993705. Deering R.B (1953) Technology of the Cooling Effects of Trees & Shrubs, Building Research Advisory Board, Conference Report No.5, Washington. Humidity, Thermal Comfort, Malaysia, Humid-Tropics. established a local adaptive thermal comfort model in Japan stick to different buildings, such as dwellings and offices. thermal comfort problem. Research on terraced house in Malaysia by (Zain, Taib, & Baki, 2007) proposed that the thermal comfort could be achieved below 28.69qC. Terraced houses are typical examples with low comfort problem that need particular consideration. Researches on thermal comfort at higher humidity levels were mostly carried out in climate chamber or air-condi- tioned spaces. THERMAL COMFORT FINDINGS: SCENARIO AT MALAYSIAN AUTOMOTIVE INDUSTRY by Ahmad Rasdan ISMAIL*, Shashi Kumar KARAGARATNAN, and Kumaran KADIRGAMA Faculty of Technology, University Malaysia Pahang, Gambang, Pahang, Malaysia Original scientific paper DOI: 10.2298/TSCI111111015I This paperdiscussesthe findings of thermalcomfortassessmentat Malaysian auto- Thermal Comfort and Indoor Air Quality Evaluation of Hospital Patient Ward in Malaysia @inproceedings{Azizpour2013ThermalCA, title={Thermal Comfort and Indoor Air Quality Evaluation of Hospital Patient Ward in Malaysia}, author={F. Azizpour and S. Moghimi and E. Salleh and C. H. Lim and K. Sopian}, year={2013} } Field measurement and CFD technique and offices for a healthy indoor environment standard or guideline heat. 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