Modification in the (NEN-)EN-ISO 7730 Model, with Regard of the Thermal Indoor Climate Assessment in Dutch Offices
Paul Roelofsen （ Industrial Design Engineering, Delft University of Technology, Landbergstraat 15, Delft, 2628 CE, The Netherlands ）
Kaspar Jansen （ Industrial Design Engineering, Delft University of Technology, Landbergstraat 15, Delft, 2628 CE, The Netherlands ）
Abstract
Where previously the thermal indoor climate in a Dutch office was mainly assessed on the basis of sedentary activities, one must now also take into account activities associated with a higher metabolic rate to improve health by reducing sitting. This subject is receiving attention in the Netherlands; so also in the context of the Well certification of buildings for instance. Several studies show that the deviation between the Predicted Mean Vote (PMV) and the experimental results increases as the temperature and/or the activity increases. This technical note is a proposal to modify the calculation of the PMV for metabolisms up to 2.1 met, on the warm side of the thermal sensation scale, in the same way as Fanger describes in his thesis, using research results as they are currently available in the literature, excluding the adaptive thermal comfort aspect.
Keywords
Mathematical modelling; thermal comfort; Indoor environmental quality; HVAC systems; WorkplaceFull Text
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3.International Well Building Institute. Well v2 , Q4 2021 Features / Movement. [Online].; 2021 [cited 2022 February 8. Available from: https://v2.wellcertified.com/en/wellv2/movement
4.Fanger PO. Thermal comfort. Analysis and applications in environmental engineering. 1970. Available from: https://www.cabidigitallibrary.org/doi/full/10.5555/19722700268
5.NEN-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 (ISO 7730:2005). 2005. https://www.iso.org/standard/39155.html
6.Wang H and Hu S. Experimental study on thermal sensation of people in moderate activities. Building and Environment, 2016, 100: 127-134. https://doi.org/10.1016/j.buildenv.2016.02.016
7. Humphreys MA and Nicol JF. The validity of ISO-PMV for predicting comfort votes in every-day thermal environments. Energy and buildings, 2002, 34(6): 667-684. https://doi.org/10.1016/S0378-7788(02)00018-X
8.Wikipedia. www.wikipedia.org. [Online].; 2023. Available from: https://en.wikipedia.org/wiki/Cool_Biz_campaign
9. Jones BW, Hsieh K and Hashinaga M. The effect of air velocity on thermal comfort at moderate activity levels. 1986. Available from: https://www.aivc.org/sites/default/files/airbase_2025.pdf
10. Yang L, Gao S, Zhao S, et al. Thermal comfort and physiological responses with standing and treadmill workstations in summer. Building and Environment, 2020, 185: 107238. https://doi.org/10.1016/j.buildenv.2020.107238
11. De Dear R and Brager GS. Developing an adaptive model of thermal comfort and preference. UC Berkeley: Center for the Built Environment, 1998. Available from: https://escholarship.org/uc/item/4qq2p9c6
12. Hensen J LM and Centnerova L. Is adaptieve thermische behaaglijkheid relevant voor de Nederlandse situatie? VV: verwarming en ventilatie, 2002, 59(6): 491-499. Available from: https://research.tue.nl/en/publications/is-adaptieve-thermische-behaaglijkheid-relevant-voor-de-nederland
13. Nevins R. Temperature-humidity chart for themal comfort of seated persons. ASHRAE Trans, 1966, 72: 283-291.
14.McNall PE, Jaax J, Rohles FH, Nevins RG, Springer W. Thermal comfort (Thermally neutral) conditions for three levels of activity. ASHRAE Transactions. 1967; 73: p. 1-14.
15. Rohles Jr FH. Thermal sensations of sedentary man in moderate temperatures. Human factors, 1971, 13(6): 553-560. Available from: https://doi.org/10.1177/001872087101300606
16. Mohamed S and Srinavin K. Thermal environment effects on construction workers’ productivity. Work Study, 2002, 51(6): 297-302. https://doi.org/10.1108/00438020210441849
17. Srinavin K and Mohamed S. Thermal environment and construction workers’ productivity: some evidence from Thailand. Building and Environment, 2003, 38(2): 339-345. https://doi.org/10.1016/S0360-1323(02)00067-7
18. Feriadi H and Wong NH. Thermal comfort for naturally ventilated houses in Indonesia. Energy and buildings, 2004, 36(7): 614-626. https://doi.org/10.1016/j.enbuild.2004.01.011
19. Backes D, Trenktrog M and Eckstein L. Smart heating panels to increase thermal comfort and efficiency. Work, 2021, 68(s1): S29-S35. Available from: https://content.iospress.com/articles/work/wor208003
20. Zhang S and Lin Z. Predicted Mean Vote with skin wettedness from standard effective temperature model. Building and Environment, 2021, 187: 107412. https://doi.org/10.1016/j.buildenv.2020.107412
21. Roelofsen P, Jansen K and Vink P. A larger statistical basis and a wider application area of the PMV equation in the Fanger model: application area of the PMV equation. Intelligent Buildings International, 2022, 14(4): 517-524. https://doi.org/10.1080/17508975.2021.1928595
22. Cheung T, Schiavon S, Parkinson T, et al. Analysis of the accuracy on PMV–PPD model using the ASHRAE Global Thermal Comfort Database II. Building and Environment, 2019, 153: 205-217. https://doi.org/10.1016/j.buildenv.2019.01.055
23. Du H, Lian Z, Lai D, et al. Evaluation of the accuracy of PMV and its several revised models using the Chinese thermal comfort Database. Energy and Buildings, 2022, 271: 112334. http://dx.doi.org/10.1016/j.enbuild.2022.112334
24. Van Hoof J. Forty years of Fanger’s model of thermal comfort: comfort for all? Indoor air, 2008, 18(3). https://doi.org/10.1111/j.1600-0668.2007.00516.x
25. Gagge AP, Fobelets AP and Berglund LG. A standard predictive index of human response to the thermal environment. 1986. Available from: https://www.semanticscholar.org/paper/A-standard-predictive-index-of-human-response-to-Gagge-Fobelets/af4d93cb49790780a30c758d7af92dc8daa72b9e
Copyright © 2024 Paul Roelofsen, Kaspar Jansen
Publishing time:2024-05-06
This work is licensed under a Creative Commons Attribution 4.0 International License
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