THERMAL SCIENCE

International Scientific Journal

THERMAL COMFORT FINDINGS: SCENARIO AT MALAYSIAN AUTOMOTIVE INDUSTRY

ABSTRACT
This paper discusses the findings of thermal comfort assessment at Malaysian automotive industry. Nine critical workstations were chosen as subjects for the study in order to determine the thermal comfort among workers at Malaysian automotive industry. The human subjects for the study comprises of the operators from tire receiving, dashboard assembly, drum tester, body assembly, seat assembly, door check assembly, stamping workstation, engine sub assembly and paint shop of the factory. The environmental factors such as Wet Bulb Globe Temperature (WBGT), relative humidity, air velocity, illuminance were measured using BABUC A apparatus and Thermal Comfort Measurement equipment. Through questionnaire survey, the demographic data of subjects and their perceptions on thermal comfort at each workstation were assessed based on ISO Standard 7730 and thermal sensation scale using Predicted Mean Vote (PMV). Then, Predicted Percentage of Dissatisfied (PPD) is used to estimate the thermal satisfaction of occupants. The results indicated that most of the workstations of the automotive industry are considered as uncomfortable. Tire receiving station is considered having better working environment compared to other stations with lowest PMV index of 1.09 to 1.41 and PPD of 46%. Meanwhile, the engine sub assembly station and paint shop of assembly are considered the worst thermal environment with the PMV index values ranging between 2.1 to 2.9 and PPD values of 81% to 99%. Therefore, these two workstations are considered not comfortable because the thermal sensation scale is warm and almost hot.
KEYWORDS
PAPER SUBMITTED: 2011-11-11
PAPER REVISED: 2012-01-17
PAPER ACCEPTED: 2012-01-17
DOI REFERENCE: https://doi.org/10.2298/TSCI111111015I
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE 2, PAGES [387 - 396]
REFERENCES
  1. Shikdar, A.A., Sawaqed, N.M., Worker productivity, and occupational health and safety issues n selected industries. Computers and Industrial Engineering, 45 (2003), 4, pp. 563-572.
  2. Ho, S.H., Rosario, L., Rahman, M.M., Thermal comfort enhancement by using a ceiling fan, pplied Thermal Engineering, 29 (2008), 8-9, pp. 1648-1656.
  3. Holmes, M.J., Hacker, J.N., Climate change, thermal comfort and energy: Meeting the design hallenges of the 21st century, Energy and Building, 39 (2007), 7, pp. 802-814.
  4. Anon. Thermal comfort in the workplace: Guidance for employers, Health & Safety Executive HSE), 1999.
  5. Parsons, K.C., Environmental ergonomics: A review of principles, methods and models, pplied Ergonomic, 31 (2000), 6, pp. 581-594.
  6. Taylor. P., Fuller, R.J., Luther, M.B., Energy use and thermal comfort in a rammed earth office uilding, Energy and Buildings, 40 (2008), 5, pp. 793-800.
  7. Ismail, M.B., An approach to investigate and remedy thermal comfort problems in buildings, uilding and Environment, 42 (2007), 5, pp. 2124-2131.
  8. Fisk, W.J., Rosenfeld, A.H., Estimates of improved productivity and health from better indoor nvironments, Indoor Air, 7 (1997), 3, pp. 158-172.
  9. Tarcan, E., Varol, E.S., Ates, M., A Qualitative study of facilities and their environmental erformance management of environmental quality, An International Journal, 15 (2004), 2, p.154-173.
  10. Marshall, L., et al., Identifying and managing adverse environmental health effects: Taking an xposure, History Canadian Medical Association Journal, 166 (2002), 8, pp.1049-1055.
  11. Chubaj, C.A., School indoor air quality, Journal of Instructional Psychology, 29 (2002), 4, pp. 17-321.
  12. Shiaw, F., Ferng, L.W.L., Indoor air quality assessment of day - care facilities with carbon ioxide, temperature, and humidity as indicator, Journal of Environmental Health, 65 (2002), 4, p. 14-18.
  13. Wilson, S., Graduating to better AQ. Consulting- Specifying Engineer, 29 (2001), 6, pp. 24-28.
  14. ASHRAE Handbook - Fundamentals, American Society of Heating, Refrigerating and Air- onditioning Engineers, Inc., Atlanta, 2005.
  15. Guan, Y., Hosni, M., Jones, B.W., Gielda, T.P., Literature review of the advances in thermal omfort modeling. ASHRAE Transactions, 2003, Vol. 109, 2, 908-916.
  16. Ahmed, A.Z., Sopian, K. Abidin, Z.Z., Othman, M.Y.H., The availability of daylight from ropical skies - a case study of Malaysia. Renewable Energy, 25 (2002), 1, pp. 21-30.
  17. Fanger, P.O., Toftum, J. 2002. Extension of the PMV model to non-air-conditioned buildings in arm climates. Energy and Buildings, 34 (2002), 6, pp. 533-536.
  18. Malek, A.R., Hanim, A.S., Natural ventilation: A passive design strategy in designing hotel obbies - cases from tropical Malaysia. International Journal of Architectural Research, 3 2009), 2, pp. 66-74.
  19. Sukor, A.M., Human thermal comfort in tropical climates, Ph.D. thesis, The Bartlett School of rchitecture, Building, Environmental Design and Planning, University College Landon, UK 993.
  20. Jang, M.S., Koh, C.D. and Moon, I.S. (2007). Review of thermal comfort design based on MV/PPD in cabins of Korean maritime patrol vessels. Building and Environment, 42 (2007), , pp. 55-61.
  21. Toftum, J., Nielsen, R., Draught sensitivity is influenced by general thermal sensation. nternational Journal of Industrial Ergonomics, 18 (1996), 4, pp. 295-305.
  22. Toftum, J., A field study of draught complaints in the industrial working environment. roceedings (eds. Frim, J., Ducharme, M.B., Tikuisis, P.), 6th International Conference on nvironmental Ergonomics, Montebello, Canada, 1994, pp. 252-253.
  23. Kristensen, T.S., Christensen, F.L., Work in meat processing plants. Danish Working nvironment Fund, Copenhagen, (1983), p.258 (in Danish).
  24. Ajimotokan, H.A., Oloyede, L.A., Ismail, M.E., Influence of indoor environment on health and roductivity, New York Science Journal, 2 (2009), 4, pp. 46-49.
  25. Mendell, M., Non-specific symptoms in office workers: a review and summary of the pidemiologic literature, Journal of Indoor Air, 3 (1993), 4, pp. 227-236.
  26. Seppanen, O.A., Fisk, W.J., Association of ventilation rates and CO2 concentrations with health nd other responses in commercial and institutional buildings, International Journal of Indoor ir Quality and Climate, 9 (1999), 4, pp. 226-252.
  27. Apte, M., Fisk, W.J. and Daisey, J., Association between indoor CO2 concentrations and sick uilding syndrome symptoms in U.S. office buildings: an analysis of the 1994-1996 BASE tudy data, Journal of Indoor Air, 10 (2000), 4, pp. 246-257.
  28. Turnbull, P., Buyer-supplier relations in the UK Automotive industry: strategy implications of he Japanese manufacturing model, Strategic Management Journal, 13 (1990), 2, pp. 159-168.
  29. Rosli, M., The Automobile industry and performance of Malaysian auto production, Journal of conomic Cooperation, 27 (2006), 1, pp. 89-114.
  30. ***, Weather Sensors, www.docknorte.com/Productos/Analizadores/Meteorologicos/ ndoorMeteo.asp
  31. Buratti, C., Ricciardi, P., Adaptive analysis of thermal comfort in university classrooms: orrelation between experimental data and mathematical models, Building and Environment 44 2009), 4, pp. 674-687.

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