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An Assessment of Thermal Comfort in Multi Storey Office Buildings in Ghana

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DOI: 10.4236/jbcpr.2014.21003    5,072 Downloads   8,685 Views   Citations

ABSTRACT

Amidst the recent development in the usage of curtain walls for office buildings, high utilization of energy and poor thermal comfort issues have become paramount. This paper assesses thermal comfort in multi storey (naturally and mechanically ventilated) office buildings in Accra, the Capital city of Ghana using Fanger’s Predicted Mean Votes (PMV) and Predicted Percentage of Dissatisfied persons (PPD) model. The model relates to the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 55 (which gives an acceptable temperature range of 23℃ - 26℃) and the International Standards Organization (ISO) 7730. Indoor environmental parameters (temperature and relative humidity) of 4 multi storey office buildings were recorded over a 10 month period. The environmental parameters were analyzed using PMVcalc_v2 software which resulted in the generation of PMV-PPD values. The findings reveal high PMV-PPD values in the Naturally Ventilated Building (NVB) whiles the Mechanically Ventilated Buildings (MVB) fall within the comfort zone. Meanwhile, the Actual Mean Votes (AMV) by the occupants suggest all four buildings are relatively comfortable with the mechanically ventilated offices being more comfortable. Additionally, it is recommended that buildings are orientated with their longer sides facing north-south, with enough shading in order to improve the thermal comfort conditions of work spaces.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Simons, B. , Koranteng, C. , Adinyira, E. and Ayarkwa, J. (2014) An Assessment of Thermal Comfort in Multi Storey Office Buildings in Ghana. Journal of Building Construction and Planning Research, 2, 30-38. doi: 10.4236/jbcpr.2014.21003.

References

[1] Budaiwa, I.M. (2006) An Approach to Investigate and Remedy Thermal-Comfort Problems in Buildings. Building and Environment, 42, 2124-2131. www.Sciencedirect.com
[2] American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) (2004) Standard 55-2004 & Standard 55-1992, Thermal Environmental Conditions for Human Occupancy. ASHRAE, Atlanta.
[3] ISO 7730 (2005) Moderate Thermal Environments—Determination of the PMV and PPD Indices and Specifications for Thermal Comfort. 2nd Ediyion, International Organization for Standardization, Geneva.
[4] Charles, K.E. (2003) Fanger’s Thermal Comfort and Draught Models. Institute for Research and Construction. IRC- RR-162, Institute for Research in Construction, Ottawa.
[5] Szokolay, S. (2004) Introduction to Architectural Science: The Basis of Sustainable Design. Architectural Press, Oxford, 17.
[6] Ealiwa, M.A., Taki, A.H, Howarth, A.T. and Sedan, M.R. (2001). An Investigation into Thermal Comfort in the Summer Season of Ghadames, Libya. Building and Environment, 36, 231-237.
http://dx.doi.org/10.1016/S0360-1323(99)00071-2 www.elsevier.com/locate/buildenv
[7] Hyde, R. and Sabarinah, S.A. (2008) Bioclimatic Housing, Innovative Designs for Warm Climates. Earthscan, UK & USA.
[8] Humphreys, M.A. and Nicol, J.F. (2002) The Validity of ISO-PMV for Predicting Comfort Votes in Everyday Thermal Environments. Energy and Buildings, 34, 667-684.
http://dx.doi.org/10.1016/S0378-7788(02)00018-X
[9] American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) (2001) Thermal Comfort. In ASHRAE Handbook: Fundamentals, ASHRAE, Atlanta, 8.1-8.29.
[10] Fanger, P.O. (1970) Thermal Comfort. Danish Technical Press. Copenhagen.
[11] de Dear, R., Fountain, M., Popovic, S., Brager, G. and Arens, E. (1993) A Field Study of Occupant Comfort and Office Thermal Environments in a Hot-Humid Climate. Final Report, ASHRAE RP-702, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Atlanta.
[12] de Dear, R.J. and Brager, G.S. (2002) Thermal Comfort in Naturally Ventilated Buildings: Revision to ASHRAE Standard 55. Energy and Buildings, 34, 549-561.
http://dx.doi.org/10.1016/S0378-7788(02)00005-1
[13] Morgan, C.A., De Dear, R. and Brager, G. (2002) Climate, Clothing and Adaptation in the Built Environment. In: Levin, H., Ed., Indoor Air 2002: The 9th International Conference on Indoor Air Quality and Climate, Monterey, 30 June-5 July 2002, 98-103.
[14] Nicol, F.G. (2001) Characterising Occupant Behaviour in Buildings: Towards a Stochastic Model of Occupant Use of Windows, Lights, Blinds, Heaters and Fans. Proceedings of 7th International IBPSA Conference, Rio de Janeiro, 13-15 August 2001, 1073-1078.
[15] Brager, G.S. and De Dear, R.J. (1998) Thermal Adaptation in the Built Environment: A Literature Review. Energy and Buildings, 27, 83-96.
[16] Oseland, N.A. (1995) Predicted and Reported Thermal Sensation in Climate Chambers, Offices and Homes. Energy and Buildings, 23, 105-115. http://dx.doi.org/10.1016/0378-7788(95)00934-5
[17] Beizaee, A., Firth, S.K., Vadodaria, K. and Loveday, D. (2012) Assessing the Ability of PMV Model in Predicting Thermal Sensation in Naturally Ventilated Buildings in UK. 7th Windsor Conference: The Changing Context of Comfort in an Unpredictable World, Windsor, 12-15 April 2012, Network for Comfort and Energy Use in Buildings, London. http://nceub.org.uk
[18] Hong, S.H., Gilbertson, J., Oreszczyn, T., Green, G., Ridley, I and the Warm Front Study Group (2009) A Field Study of Thermal Comfort in Low-Income Dwellings in England Before and After Energy Efficient Refurbishment. Building and Environment, 44, 1228-1236.
http://dx.doi.org/10.1016/j.buildenv.2008.09.003
[19] Han, J., Zhang, G., Zhang, Q., Zhang, J., Liu, J., Tian, L., Zheng, C., Hao, J., Lin, J., Liu, Y. and Moschandreas, D.J. (2007) Field study on Occupants’ Thermal Comfort and Residential Thermal Environment in a Hot-Humid Climate of China. Building and Environment, 42, 4043-4050.
http://dx.doi.org/10.1016/j.buildenv.2006.06.028
[20] Adebamowo, M.A. and Akande, O.K. (2010) Indoor Thermal Comfort for Residential Buildings in Hot-Dry Climate of Nigeria. http://nceub.org.uk
[21] Heidari, S. and Sharples, S. (2002) A Comparative Analysis of Short-Term and Long-Term Thermal Comfort Surveys in Iran. Energy and Buildings, 34, 607-614. http://dx.doi.org/10.1016/S0378-7788(02)00011-7
[22] Auliciems, A. (1981) Towards a Psycho-Physiological Model of Thermal Perception. International Journal of Biometeorology, 25, 109-122. http://dx.doi.org/10.1016/S0378-7788(02)00011-7
[23] Al-Najem, A.A. (2010). The Effects of Orientation, Ventilation and Varied WWR on the Thermal Performance of Residential Rooms in the Tropics.
http://www.ccsenet.org/journal/index.php/jsd/article
[24] Stein, B. and Reynolds, J.S. (2000) Mechanical and Electrical Equipment for Buildings. Ninth Edition, John Wiley and Sons, Inc., New York, 455-475.
[25] Koranteng, C. and Abaitey, E.G. (2010) The Effects of Form and Orientation on Energy Performance of Residential Buildings in Ghana, Journal of Science and Technology, 30, 71-81.
[26] Chenvidyakarn, T. (2007) Passive Design Techniques for Thermal Comfort in Hot Humid Climate. www.shibaura-it.ac
[27] Sumanon, R. (2004) The Unique Angle of Roof Slope Effecting Thermal Comfort in the Traditional Thai House. http://www.arquitecturatropical.org.pdf
[28] Wagner, A., Gossauer, E., Moosmann, C., Gropp, T. and Leonhart, R. (2007) Thermal Comfort and Workplace Occupant Satisfaction—Results of Field Studies in German Low Energy Office Buildings. Energy and Buildings, 39, 758-769.
http://dx.doi.org/10.1016/j.enbuild.2007.02.013 www.sciencedirect
[29] Koranteng, C., Nyame-Tawiah, D. and Quansah, E. (2011) A Psychometric Analysis of Thermal Comfort in Low-Rise Office Buildings in Ghana. Journal of Science and Technology, 31, 76-88.
[30] Koranteng, C. and Mahdavi, A. (2010) An Enquiry into the Thermal Performance of Five Office Buildings in Ghana. 10th Revha World Congress on Sustainable Energy Use in Buildings (CLIMA 2010), Antalya, 9-12 May 2010.
[31] Daghigh, R., Adam, N.M., Sopian, K. and Sahari, B.B. (2009) Thermal Comfort of an Air-Conditioned Office through Different Windows-Door Opening Arrangements. Building Services Engineering Research and Technology, 30, 49-63. http://dx.doi.org/10.1177/0143624408099448
[32] Fanger, P.O. (1967) Calculation of Thermal Comfort: Introduction of a Basic Comfort Equation. ASHRAE Transactions, 73, III4.1-III4.20.
[33] Olesen, B.W. and Brager, G.S. (2004) A Better Way to Predict Comfort. ASHRAE Journal, 46, 20-28. http://www.cbe.berkeley.edu/research
[34] Xi, T., Li, Q., Mochida, A. and Meng, Q. (2012) Study on the Outdoor Thermal Environment and Thermal Comfort around Campus Clusters in Subtropical Urban Areas. Building and Environment, 52, 162-170. http://dx.doi.org/10.1016/j.buildenv.2011.11.006
[35] Sabarinah, A. and Steven, S. (2007) The Performance of a Partially Air-Conditioned Apartment Building in Kuala Lumpur. The 24th International Conference on Passive and Low Energy Architecture, Singapore, 22-24 November 2007, 608-614.
[36] Huang, L., Zhu, Y., Ouyang, Q. and Cao, B. (2012) A Study on the Effects of Thermal, Luminous, and Acoustic Environments on Indoor Environmental Comfort in Offices. Building and Environment, 49, 304-309. http://dx.doi.org/10.1016/j.buildenv.2011.07.022
[37] Mohammadi, A. (2007) Modeling Occupants’ Control Actions and Their Energy Implications in an Office Building. Institute of Building Physics and Building Ecology. Technology University of Vienna, Austria.
[38] Yu, J., Yang, C. and Tian, L. (2008) Low Energy Envelope Design of Residential Building in Hot Summer and Cold Winter Zone in China. Energy Build, 40, 1536 -1546. http://dx.doi.org/10.1016/j.enbuild.2008.02.020
[39] Doherty, T.J. and Arens, E. (1988) Evaluation of the Physiological Bases of Thermal Comfort Models. ASHRAE Transactions, 94, 1371-1385.
[40] Oseland, N.A. (1996) A Review of Thermal Comfort and its Relevance to Future Design Models and Guidance. Proceedings of the BEPAC Conference Building Environmental Performance: Facing the Future, York, 1996, 205-216.

  
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