In this decade, in the hot tropical zone, it is observed a rapid variation of the external climate which acts directly on the thermal comfort and the satisfaction of the occupants inside the buildings. The aim of this article is to analysis the influence of some indoor parameters on workers’ performance. In addition, this work reports the results of the conducted study to assess the effect of indoor environment quality on workers ‘productivity, in 102 offices distributed in 23 buildings in the coastal and central areas of Cameroon (Douala and yaounde). This research was conducted during the dry and rainy seasons, in naturally ventilated buildings using the adaptive approach, in accordance with ASHRAE 55/2004, ISO 7730 and ISO 10551. Wind speed, air temperature, relative humidity and CO2 levels were measured. While, simultaneously, 600 questionnaires were distributed. The results revealed that the temperature, and relative humidity have significant effect on the office workers’ productivity. More than 80% of the participants were working under "no stress" condition, when the Universal Thermal Climate Index varied from 22.9 to 26.3°C". The optimum performance occurred when the thermal sensation was between -0.5 and 0.5. Increasing the air temperature to 28°C and above could reduce workers’ performance by a minimum of 1.5% during both seasons.
| Published in | American Journal of Chemical Engineering (Volume 6, Issue 5) |
| DOI | 10.11648/j.ajche.20180605.11 |
| Page(s) | 72-85 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2018. Published by Science Publishing Group |
Workers, Productivity, Commercial Buildings, Physical Parameters, Indoor Environmental Quality, Tropical Climate
| [1] | Olli Seppanen, William J. Fisk, David Faulkner. Control of temperature for health and productivity in offices. LBNL-55448. 2004, 1-6. |
| [2] | P. Wargocki, J. Sundell, W. Bischof, G. Brundrett, P. O. Fanger, F. Gyntelberg, S. O. Hanssen, P. Harrison, A. Pickering, O. Sepp) nen, P. Wouters. Ventilation and health in non-industrial indoor environments: report from a European Multidisciplinary Scientific Consensus Meeting (EUROVEN). Indoor Air 2002; 12: 113–128. |
| [3] | Monika Frontczak, Rune Vinther Andersen, PawelWargocki. Questionnaire survey on factors influencing comfort with indoor environmental Quality in Danish housing. Building and Environment 50 (2012) 56-64. |
| [4] | K. Vimalanathan, T. RameshBabu. Impact of Environment Ergonomics on the Productivity of Office Workers. Australian Journal of Basic and Applied Sciences, 7 (4): 366-374, 2013ISSN 1991-8178. |
| [5] | Niemela, R., M. Hannula, S. Rautio, K. Reijula, J. Railio, 2002. The effect of indoor air temperature on labour productivity in call centres – a case study. Energy and Buildings, 34: 759-64. |
| [6] | Federspiel, C., G. Liu, M. Lahiff, 2002. Worker performance and ventilation: of individual data for call center workers. In: Proceedings of indoor air, pp: 796-801. |
| [7] | Charles, R., J. T. Reardon, R. J. Magee, 2005. Indoor air quality and thermal comfort in open-plan offices. Construction Technology updates No. 64, National Research Council of Canada ISSN 1206-1220. |
| [8] | Kosonen, R., F. Tan, 2004. Assessment of productivity loss in air-conditioned building using PMV index. Energy and Building, 36: 987-993. |
| [9] | Pilcher, J. J., N. Eric, B. Caroline, 2002. Effect of hot and cold temperature exposure on Performance: a meta analytic review. Ergonomics. 45 (10): 682-698. |
| [10] | Li Lan, Z. W., L. Lian, Pan, Q. Ye, 2009. Neurobehavioural approach for evaluation of office workers’ productivity: the effects of room temperature. Building and Environment, 44: 1578-1588. |
| [11] | Young S. Lee., Denise A. Guerin., 2010. Indoor environmental quality differences between offices types in LEED certified buildings in the US. Building and Environment. 45: 1104-1112. |
| [12] | Griffiths T., McIntyre D. 1975. The effect of mental effect on subjective assessments on warmth. Ergonomics. Vol 18, No 1, pp. 29-32. |
| [13] | Federspiel C. 2001. Estimating the Frequency and Cost of Responding to Building Complaints In: Spengler, J. Sammet, J. and McCarthy, J. eds. Indoor Air Quality Handbook, McGraw Hill. |
| [14] | Fisk WJ. 2001. Estimates of potential nationwide productivity and health benefits from better indoor environments: an update. In: Spengler, J. Sammet, J. and McCarthy, J. eds. Indoor Air Quality Handbook, McGraw Hill. |
| [15] | Jørn Toftum. Central automatic control or distributed occupant control for better indoor Environment quality in the future. Building and Environment 45 (2010) 23–28. |
| [16] | Niemelä, R., Hannula, M., Rautio, S., Reijula, K., Railio, J. The effect of indoor air temperature on labour productivity in call centers – a case study. Energy and Buildings. 34 (2002) 759-764. |
| [17] | Holmberg, I. and Wyon, D. P. The dependence of performance in school on classroom temperature, Educational & Psychological Interactions, 31 (1969) 20p. Malmö, Sweden: School of Education. |
| [18] | Heschong Mahone Group. Windows and offices: A study of office workers performance and the indoor environment. (2003) Prepared for California energy commission. Fair Oaks, California. |
| [19] | Carel Paul Gerard ROELOFSEN. Modelling relationships between a comfortable indoor environment, perception and performance change. PhD thesis available at http: //repository. tudelft. nl/. |
| [20] | Modeste Kameni Nematchoua, René Tchinda, Noël Djongyang, Paola Ricciardi. A field study on thermal comfort in naturally-ventilated buildings located in the equatorial climatic region of Cameroon. Renewable and Sustainable Energy Reviews, 39 (2014)381–393. |
| [21] | Modeste Kameni Nematchoua, Paola Ricciardi, Sigrid Reiter, Andrianaharison Yvon. A comparative study on optimum insulation thickness of walls and energy savings in Equatorial and Tropical climate. International Journal Science Buil Environment. (2017), 1-13. |
| [22] | Modeste Kameni Nematchoua, José A. Orosa. Building construction materials effect in tropical wet and cold climates: a case study of office buildings in Cameroon. Journal of Building Engineering, (2016)1-13. |
| [23] | Elvis Wati, Pierre Meukam, Modeste Kameni Nematchoua, Tchinda Rene. Influence of external shading on optimum insulation thickness of building walls in a tropical region. Applied Thermal Engineering, 90 (2015) 754-762. |
| [24] | Modeste Kameni Nematchoua, Chrysostôme R. R. Raminosoa, Ramaroson Mamiharijaona, Tchinda René, José A. Orosa, Watis Elvis, Pierre Meukam. Study of the economical and optimum thermal insulation thickness for buildings in a wet and hot tropical climate: Case of Cameroon. Renewable and Sustainable Energy Reviews 50 (2015) 1192–1202. |
| [25] | Modeste Kameni Nematchoua, René Tchinda, José A. Orosa, Wagner Augusto Andreasi. Effect of wall construction materials over indoor air quality in humid and hot climate. Journal of Building Engineering 3 (2015) 16–23. |
| [26] | Modeste Kameni Nematchoua, René Tchinda, José A. Orosa. Adaptation and comparative study of thermal comfort in classrooms and buildings naturally ventilated in wet tropical zones. Energy and Buildings 85 (2014) 321–328. |
| [27] | P. Ricciardi, A. Ziletti, C. Buratti. Evaluation of thermal comfort in an historical Italian opera theatre by the calculation of the neutral comfort temperature. Building and Environment 102 (2016) 116-127. |
| [28] | P. Ricciardi, C. Buratti. Thermal comfort in the Fraschini theatre (Pavia, Italy): Correlation between data from questionnaires, measurements, and mathematical model. Energy and Buildings 99 (2015) 243–252. |
| [29] | P. Ricciardi, C. Buratti. Thermal comfort in open plan offices in northern Italy: an adaptive approach, Build. Environ. 56 (2012) 314–320. |
| [30] | C. Buratti, P. Ricciardi, M. Vergoni, HVAC systems testing and check: a simplified model to predict thermal comfort conditions in moderate environments, Appl. Energy 104 (2013) 117–127. |
| [31] | Gail S. Brager, Richard J. De Dear. Thermal adaptation in the built environment: a literature review. 27, 1 (1998), 83-96. |
| [32] | M. J. Mendell, G. A. Heath. Do indoor pollutants and thermal conditions in schools influence student performance? A critical review of the literature. Indoor Air, (2005)27-52. |
| [33] | A. I. Dounis, C. Caraiscos. Advanced control systems engineering for energy and comfort management in a building environment—A review. Renewable and Sustainable Energy Reviews. 13, Issues 6–7, (2009) 1246–1261. |
| [34] | J. Thompson Coon, K. Boddy, K. Stein, R. Whear, J. Barton, and M. H. Depledge. Does Participating in Physical Activity in Outdoor Natural Environments Have a Greater Effect on Physical and Mental Wellbeing than Physical Activity Indoors? A Systematic Review. Environmental Science and Technology, 2011, 45 (5), pp 1761–1772. |
| [35] | Liu Yang, Haiyan Yan, Joseph C. Lam. Thermal comfort and building energy consumption implications – A review. Applied Energy. 115, (2014), 164–173. |
| [36] | J. L. M. Hensen. Literature review on thermal comfort in transient conditions. Building and Environment, 25 (1990)4, 309-316. |
| [37] | M. J. Mendell. Non-Specific Symptoms In Office Workers: A Review And Summary Of The Epidemiologic Literature. Indoor Air, 3 (1993) 227–236. |
| [38] | Mohammad Taleghani, Martin Tenpierik, Stanley Kurvers, Andy van den Dobbelsteen. A review into thermal comfort in buildings. Renewable and Sustainable Energy Reviews, 26, (2013) 201–215. |
| [39] | Choongwan Koo, Sungki Park, Taehoon Hong, Hyo Seon Park. An estimation model for the heating and cooling demand of a residential building with a different envelope design using the finite element method. Volume 115, 15 February 2014, Pages 205–215. |
| [40] | S. Karjalainen. Thermal comfort and gender: a literature review. Indoor Air, 22, (2012) 96–109. |
| [41] | Nigel Bruce, Rogelio Perez-Padilla, Rachel Albalak. Indoor air pollution in developing countries: a major environmental and public health challenge. Special Theme– Environment and Health. (2000)1078-1089. |
| [42] | Children's Health and the Environment WHO Training Package for the Health Sector World Health Organization. July 2008 version, www. who. int/ceh. 1 (30). |
| [43] | Klara Slezakova, Simone Morais, Maria do Carmo Pereira. Indoor Air Pollutants: Relevant Aspects and Health Impacts. Environmental Health – Emerging Issues and Practice, (2004)127-145. |
| [44] | Seppanen, O., Fisk, W. J., Association of ventilation system type with SBS symptoms in office workers. Indoor Air (2000) 12, 98–112. |
| [45] | B. F. Yua, Z. B. Hu, M. Liu, H. L. YangbQ. X. Kong, Y. H. Liu. Review of research on air-conditioning systems and Indoor air quality control for human health. International journal of refrigeration 32 (2009) 3–20. |
| [46] | P. Wargocki, J. Sundell, W. Bischof, G. Brundrett, P. O. Fanger, F. Gyntelberg S. O. Hanssen, P. Harrison A. Pickering, O. Sepp, P. Wouters. Ventilation and health in non-industrial indoor environments: Report from a European Multidisciplinary Scientific Consensus Meeting (EUROVEN). Indoor Air 2002; 12: 113–128. |
| [47] | Pawel Wargocki. Improving indoor air quality improves the performance of office work and school work. 8th International Conference for Enhanced Building Operations-ICEBO’08 Conference Center of the Federal Ministry of Economics and Technology. Berlin, October 20-22, 2008. |
| [48] | DavidColey, Tristan Kershaw. Changes in internal temperatures with in the built environment as a response to a changing climate. Building and Environment 45 (2010) 89–93. |
| [49] | TM36. Climate change and the indoor environment: impacts and adaptation. London: The Chartered Institution of Building Services Engineers; 2005. |
| [50] | EPSRC. Support by socio-economic theme in climate change, http: //gow. epsrc. ac. uk /ChooseTTS. aspx?Mode=SOCIO&ItemId=2; 2008. |
| [51] | Grogan H, Hopkins PM. Heatstroke: implications for critical care and anaesthesia. British Journal of Anaesthesia 2002; 88: 700–7. |
| [52] | Anderson K, Bows A. Reframing the climate challenge in light of Post-2000 Emissions trend. Philosphical Transactions of the Royal Society A 2008; 366: 3863–82. |
| [53] | Fourth Assessment Report. Intergovernmental panel on climate change Avaiable from: http: //www. ipcc. ch/. |
| [54] | Hui Zhang, Edward Arens, Dong EunKim, Elena Buchberger, Fred Bauman, Charlie Huizenga. Comfort, perceived airquality, and work performance in a low-power task–ambient conditioning system. Building and Environment 45 (2010) 29–39. |
| [55] | JD Spengler, K Sexton. Indoor air pollution: a public health perspectiveScience, (1983) Vol. 221, Issue 4605, pp. 9-17. |
| [56] | Anca D. Galasiu, Jennifer A. Veitch. Occupant preferences and satisfaction with the luminous environment and control systems in daylit offices: a literature review. Energy and Buildings 38 (2006) 728–742. |
| [57] | J. A. Veitch. Lighting quality contributions from biopsychological processes, Journal of the Illuminating Engineering Society 30 (1) (2001)3–16. |
| [58] | J. A. Veitch, Psychological processes influencing lighting quality, Journal of the Illuminating Engineering Society 30 (1) (2001) 124–140. |
| [59] | C. Cuttle, People and wind ows in workplaces, in: Proceedings of the people and Physical Environment Research Conference, Wellington, New Zealand, (1983), pp. 203–212. |
| [60] | S. H. A. Begemann, G. vanden Beld, J. A. D. Tenner, Daylight, artificial light and people inanoffice environment, overview of visual and biological responses, Industrial Ergonomics 20 (1997) 231–239. |
| [61] | A. I. Dounis, C. Caraiscos. Advanced control systems engineering for energy and comfort management in a building environment—Areview. Renewable and Sustainable Energy Reviews 13 (2009) 1246–1261. |
| [62] | D. Kolokots, A. Pouliezos, G. Stavrakakis, C. Lazos. Predictive control techniques for energy and indoor environmental quality management in buildings. Building and Environment 44 (2009) 1850–1863. |
| [63] | Jan Široký, Frauke Oldewurtel, Jiří Cigler, Samuel Prívara. Experimental analysis of model predictive control for an energy efficient building heating system. 88, Issue 9, (2011), 3079–3087. |
| [64] | Ardeshir Mahdavi. Simulation-based control of building systems operation. Building and Environment 36 (2001) 789–796. |
| [65] | Mahdavi A. “Open” simulation environments: a“preference-based” Approach. Proceedings of CAAD Futures’93, CMU, Pittsburgh, PA, 1993; 195–214. |
| [66] | Mahdavi A, Berberidou L. A generative simulation tool for Architectural lighting. Proceedings of the Fourth International Conference of the International Building Performance Simulation Association (IBPSA). Madison, Wisconsin, 1995; p. 395–402. |
| [67] | Mahdavi A, BerberidouL. GESTALT: a prototypical realization of an “Open” day lighting simulation environment. Journal of the Illuminating Engineering Society 1994; 23 (2): 62–71. |
| [68] | Sue Sharples, Vic Callaghan, Graham Clarke. "A multi-agent architecture for intelligent building sensing and control", Sensor Review, Vol. 19 Issue: 2 (1999), 135-140. |
| [69] | Varick L. Erickson, Yiging Lin, Ankur Kamthe, Rohini Brahme, AmitSurana, Alberto E. Cerpa, Michael D. Sohn, Satish Narayanan. Energy efficient building environment control strategies using real-time occupancy measurements. BuildSys’09 Proceedings of the first ACM workshop on Embedded Sensing Systems for Energy- Efficiency in Buildings. 19-24. |
| [70] | Benjamin Paris, Julien Eynard, Stéphane Grieu∗, Thierry Talbert, Monique Polit. Heating control schemes for energy management in buildings. Energy and Buildings 42 (2010) 1908–1917. |
| [71] | Vink P, Koningsveld EAP, Molenbroek JF. Positive outcomes of participatory ergonomics in terms greater comfort and higher productivity. Applied Ergonomics. 2006; 37: p. 537-546. |
| [72] | P. Roelofsen, The design of the work place as a strategy for productivity enhancement, in: Clima2000/Napoli 2001 World Congress, Napoli, 2001. |
| [73] | Veld J. Analyse van organisatieproblemen - Eentoepassing van denken in systemenen processen. zesdeherzienedruk, vierdeoplage ed. The Netherlands: StenfertKroese/Educatieve Partners; 1996. |
| [74] | Clements-Croome D. Creative and productive workplaces: a review. Intelligent Buildings International. 2015 mei 19; http: //dx. doi. org/10. 1080/17508975. 2015. 1019698: p. 1-20. |
| [75] | He L, Chen L, Hoyle C, Yannou B. Choice modeling for Usage Context-Based Design. Journal of Mechanical Design. 2012; 134 (3): p. (11 pages): DOI: 10. 1115/1. 4005860. |
| [76] | Li Lan, Pawel W., ZhiweiLian. Optimal thermal environment improves performance of office work. REHVA Journal (2012), 12-17. |
| [77] | J. E. Wood, Cost avoidance and productivity in owning and operating buildings, occupational Medicine 4 (4) (1989) 753–770. |
| [78] | O. Seppänen, Estimated cost of indoor climate in Finnish buildings, in: Proceedings of the Eighth International Conference on indoor Air Quality, Climate, Edinburgh, Scotland, vol. 3, 1999, pp. 13–18. |
| [79] | Pepler RD and Warner RE. Temperature and learning: an experimental study. ASHRAE Transactions, (1968) 42, 211-219. |
| [80] | Wyon DP. Indoor environmental effects on productivity. Proceedings of IAQ ’96: Paths to better building environments, 1996 pp. 5-15. Atlanta, Georgia, USA: ASHRAE. |
| [81] | O. Seppänen, W. Fisk, Q. H. Lei, Room temperature and productivity in office work, in: eScholarship Repository, Lawrence Berkeley National Laboratory, University of California, 2006, http: //repositories. cdlib. org/lbnl/LBNL-60952. |
| [82] | Jørn To ftum. Central automatic control ordistributed occupant control for better indoor. Environment quality in the future. Building and Environment 45 (2010) 23–28. |
| [83] | A. P. Gagge, A. P. Fobelets, L. G. Berglund, A standard predictive index of human response to the thermal environment, ASHRAE Transactions 92 (2B) (1986) 709–731. |
| [84] | Niemelä, R., Railio, J., Hannula, M., Rautio, S., Reijula, K. Assessing the effect of indoor environment on productivity. Proceedings (CD) of Clima 2000 Conference in Napoli, 2001. |
| [85] | Niemelä, R., Hannula, M., Rautio, S., Reijula, K., Railio, J. The effect of indoor air temperature on labour productivity in call centers – a case study. Energy and Buildings. 34 (2002) 759-764. |
| [86] | Holmberg, I. and Wyon, D. P. The dependence of performance in school on classroom temperature, Educational & Psychological Interactions, 31 (1969) 20p. Malmö, Sweden: School of Education. |
| [87] | K. Vimalanathan and T. Ramesh Babu. Impact of Environment Ergonomics on the Productivity of Office Workers. Australian Journal of Basic and Applied Sciences, 7 (4): 366-374, 2013 ISSN 1991-8178. |
| [88] | LiLan, Pawel Wargocki, ZhiweiLian. Quantitative measurement of productivity loss due to thermal discomfort. Energy and Buildings 43 (2011) 1057–1062. |
| [89] | Paul Roelofsen. Modelling relationships between a comfortable indoor environment, perception and performance change. Doctorate thesis. 2016, http: //repository. tudelft. nl/ |
| [90] | Clements-Croome D. Naturally Ventilated Buildings London: E & FN Spon; 1997. |
| [91] | Wargocki P, Seppanen O, Andersson J, Boerstra A, Clements-Croome D, Fitzner K, et al. Guidebook No. 6. "Indoor Climate and Productivity in Offices". REHVA; 2006. |
| [92] | Seppänen, O., Fisk, W. J., Faulkner, D. Cost benefit analysis of the night-time ventilative cooling. In: Proceedings of the Healthy Buildings 2003 Conference. Singapore 2003, Vol 3: 394-399. |
| [93] | McCunney, Robert J. MD, MPH. Health and Productivity: A Role for Occupational Health Professionals. Journal of Occupational & Environmental Medicine: (2001)43, 30-35. |
| [94] | Raimo Niemel, Mika Hannula, Sari Rautio, Kari Reijula, Jorma Railio. The effect of air temperature on labour productivity in call centres—a case study. Energy and Buildings 34 (2002)759–764. |
| [95] | R. Kosonen, F. Tan. The effect of perceived indoor air quality on productivity loss. Energy and Buildings 36 (2004) 981–986. |
| [96] | Loeppke, Ronald, MPH; Taitel, Michael; Haufle, Vince MPH; Parry, Thomas; Kessler, Ronald C. ; Jinnett, Kimberly. Health and Productivity as a Business Strategy: A Multiemployer Study. Journal of Occupational & Environmental Medicine: 4 (2009) 51, pp 411-428. |
| [97] | Goetzel, Ron Z. ; Shechter, David; Ozminkowski, Ronald J. ; Marmet, Paula F. MS, Tabrizi, Maryam J. CHES; Roemer, Enid Chung. Promising Practices in Employer Health and Productivity Management Efforts: Findings From a Benchmarking Study. Journal of Occupational & Environmental Medicine, 49 (2007)pp 111-130. |
| [98] | Krzyszt of Błażejczyk, Gerd Jendritzky, Peter Bröde, Dusan Fiala, George, Havenith, Yoram Epstein, Agnieszka Psikuta, Bernhard Kampmann. An introduction to the universal thermal climate index (UTCI). Geographia Polonica Volume 86, Issue 1, pp. 5-10 http: //dx. doi. org. /10. 7163/GPol. 2013. |
| [99] | Boko N. P. M., Vissin E. W, Houssou S. C., Błaŝejczyk K. Application de l’indiceuniversel de charge Hermiquedans le contexteafricain: exemple de Cotonou (republique du benin). XXVIèmecolloque de l’AssociationInternationale de Climatologie. (2010)107-109. |
| [100] | ASHRAE Standard 55, Thermal environment conditions for human occupancy, Atlanta, Ga., USA; 2004. |
| [101] | UNI EN ISO 7730, Ergonomics of the thermal environment–analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria; 2006. |
| [102] | Fanger PO. Thermal comfort. Copenhagen: Danish Technical press; 1970. |
| [103] | Modeste Kameni Nematchoua, Paola Ricciardi, José A. Orosa, Cinzia Buratti. A detailed study of climate change and some vulnerabilities in Indian Ocean: A case of Madagascar island. Sustainable Cities and Society 41 (2018) 886–898. |
| [104] | Modeste Kameni Nematchoua, Paola Ricciardi, Cinzia Buratti. Adaptive approach of thermal comfort and correlation between experimental data and mathematical model in some schools and traditional Buildings of Madagascar under natural ventilation. Sustainable Cities and Society 41 (2018) 666–678. |
| [105] | Modeste Kameni Nematchoua, Paola Ricciardi, Cinzia Buratti. Statistical analysis of indoor parameters an subjective responses of building Occupants in a hot region of Indian ocean; a case of Madagascar island. Applied Energy 208 (2017) 1562–1575. |
| [106] | Modeste Kameni Nematchoua, Paola Ricciardi, Sigrid Reiter, Somayeh Asadi, Claude MH Demers. Thermal comfort and comparison of some parameters coming from hospitals And shopping centers under natural ventilation: The case of Madagascar Island. Journal of Building Engineering 13 (2017) 196–206. |
APA Style
Modeste Kameni Nematchoua. (2018). Analysis of some Physical Parameters under Workers' Optimal Performance in Wet and Hot Tropical Climates; A Literature Review. American Journal of Chemical Engineering, 6(5), 72-85. https://doi.org/10.11648/j.ajche.20180605.11
ACS Style
Modeste Kameni Nematchoua. Analysis of some Physical Parameters under Workers' Optimal Performance in Wet and Hot Tropical Climates; A Literature Review. Am. J. Chem. Eng. 2018, 6(5), 72-85. doi: 10.11648/j.ajche.20180605.11
AMA Style
Modeste Kameni Nematchoua. Analysis of some Physical Parameters under Workers' Optimal Performance in Wet and Hot Tropical Climates; A Literature Review. Am J Chem Eng. 2018;6(5):72-85. doi: 10.11648/j.ajche.20180605.11
Share This Article
Twitter
Linked In
Facebook
Copy
Download@article{10.11648/j.ajche.20180605.11,
author = {Modeste Kameni Nematchoua},
title = {Analysis of some Physical Parameters under Workers' Optimal Performance in Wet and Hot Tropical Climates; A Literature Review},
journal = {American Journal of Chemical Engineering},
volume = {6},
number = {5},
pages = {72-85},
doi = {10.11648/j.ajche.20180605.11},
url = {https://doi.org/10.11648/j.ajche.20180605.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20180605.11},
abstract = {In this decade, in the hot tropical zone, it is observed a rapid variation of the external climate which acts directly on the thermal comfort and the satisfaction of the occupants inside the buildings. The aim of this article is to analysis the influence of some indoor parameters on workers’ performance. In addition, this work reports the results of the conducted study to assess the effect of indoor environment quality on workers ‘productivity, in 102 offices distributed in 23 buildings in the coastal and central areas of Cameroon (Douala and yaounde). This research was conducted during the dry and rainy seasons, in naturally ventilated buildings using the adaptive approach, in accordance with ASHRAE 55/2004, ISO 7730 and ISO 10551. Wind speed, air temperature, relative humidity and CO2 levels were measured. While, simultaneously, 600 questionnaires were distributed. The results revealed that the temperature, and relative humidity have significant effect on the office workers’ productivity. More than 80% of the participants were working under "no stress" condition, when the Universal Thermal Climate Index varied from 22.9 to 26.3°C". The optimum performance occurred when the thermal sensation was between -0.5 and 0.5. Increasing the air temperature to 28°C and above could reduce workers’ performance by a minimum of 1.5% during both seasons.},
year = {2018}
}
TY - JOUR T1 - Analysis of some Physical Parameters under Workers' Optimal Performance in Wet and Hot Tropical Climates; A Literature Review AU - Modeste Kameni Nematchoua Y1 - 2018/10/13 PY - 2018 N1 - https://doi.org/10.11648/j.ajche.20180605.11 DO - 10.11648/j.ajche.20180605.11 T2 - American Journal of Chemical Engineering JF - American Journal of Chemical Engineering JO - American Journal of Chemical Engineering SP - 72 EP - 85 PB - Science Publishing Group SN - 2330-8613 UR - https://doi.org/10.11648/j.ajche.20180605.11 AB - In this decade, in the hot tropical zone, it is observed a rapid variation of the external climate which acts directly on the thermal comfort and the satisfaction of the occupants inside the buildings. The aim of this article is to analysis the influence of some indoor parameters on workers’ performance. In addition, this work reports the results of the conducted study to assess the effect of indoor environment quality on workers ‘productivity, in 102 offices distributed in 23 buildings in the coastal and central areas of Cameroon (Douala and yaounde). This research was conducted during the dry and rainy seasons, in naturally ventilated buildings using the adaptive approach, in accordance with ASHRAE 55/2004, ISO 7730 and ISO 10551. Wind speed, air temperature, relative humidity and CO2 levels were measured. While, simultaneously, 600 questionnaires were distributed. The results revealed that the temperature, and relative humidity have significant effect on the office workers’ productivity. More than 80% of the participants were working under "no stress" condition, when the Universal Thermal Climate Index varied from 22.9 to 26.3°C". The optimum performance occurred when the thermal sensation was between -0.5 and 0.5. Increasing the air temperature to 28°C and above could reduce workers’ performance by a minimum of 1.5% during both seasons. VL - 6 IS - 5 ER -
Information
Email: