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Price: EUR 250.00Authors: Roelofsen, P. | Vink, P.
Article Type: Research Article
Abstract: BACKGROUND: The original Stolwijk model is not equipped with clothing, thermal sensation, comfort indices, individual characteristics and performance loss models. OBJECTIVE: This study attempts to modify the model to include clothing, thermal sensation as well as the calculation of the percentage of dissatisfied as a result of general discomfort. The model is useful for the evaluation of thermal comfort in the built environment by professionals. METHODS: Methods described in literature with regard of clothing, the research of Fiala as well as some in the literature recommended and validated adjustments, to improve the simulation of the …skin temperature per body segment, are implemented in the here assembled Stolwijk computer model. Finally, for verification of the above adjustments, the model was compared with experiments conducted in the field of thermal sensation at various levels of temperature change. RESULTS: By improving the simulation of the skin temperature per body segment and by adding clothing and thermal sensation, suitable for the assessment of steady state and transient thermal conditions, and fixed with this the percentage of dissatisfied, the scope of the Stolwijk model has become larger than it was before. CONCLUSION: On the basis of the calculations and the experimental results, it was concluded that the adjusted Stolwijk model was suitable for the simulation of the thermal sensation under steady state and transient thermal conditions. Show more
Keywords: Mathematical human modelling, transient thermal sensation
DOI: 10.3233/WOR-162357
Citation: Work, vol. 54, no. 4, pp. 1009-1024, 2016
Authors: Bazley, C. | Vink, P.
Article Type: Research Article
Abstract: This paper discusses the importance of including time in environmental design and the challenges facing environmental design now and in the future. Research shows that important factors for studying the effects of environments are time, body movement, control and sensory variability. There are many ways to incorporate time into the design and it is dependent on the type of environmental design. Research also suggests that discomfort in restrictive environments, e.g., in an airplane or automobile are strongly related long periods of inactivity and lack of sensory stimulation. Research also suggests that office workers’ health risks are in a large part …due to restrictive movement, training inefficiencies, and lack of variation found in the environment. A challenge is how to incorporate stimulating activities and variation into restrictive environments. Another challenge is the cost versus benefit of designing comfortable and healthy environments. Will comfort standards be accomplished through volunteer compliance or is it necessary to push for compliance through legal requirements, standards and regulations? Is it time to consider reducing discomfort as a necessity and apply what research has suggested, i.e., that variation and movement over time in interior environments promotes well-being and productivity? Is it time to accept the results of research and apply the findings to the designs and practice of environmental design? Show more
Keywords: Discomfort, control, variation, well-being, comfort
DOI: 10.3233/WOR-162364
Citation: Work, vol. 54, no. 4, pp. 1025-1029, 2016
Article Type: Other
Citation: Work, vol. 54, no. 4, pp. 1031-1037, 2016
Article Type: Other
Citation: Work, vol. 54, no. 4, pp. 1039-1042, 2016
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