Naturally ventilated classrooms: an assessment of existing comfort models for predicting the thermal sensation and preference of primary school children
Naturally ventilated classrooms: an assessment of existing comfort models for predicting the thermal sensation and preference of primary school children
Current thermal comfort models are based on studies with adult subjects, mainly in offices. There is no assurance however that these models apply to children. This paper presents findings from thermal comfort surveys and measurements of indoor environmental variables in naturally ventilated classrooms in Hampshire, England. School children aged 7-11 were surveyed regarding their thermal sensation and preference in repeated survey runs outside the heating season, gathering about 1300 responses in total. The results were compared to predictions achieved with the two common approaches used in existing comfort standards, the heat balance and the adaptive comfort model. The heat balance model indices PMV (Predicted Mean Vote) and PPD (Predicted Percentage of Dissatisfied) were calculated for the survey periods, using the measured physical parameters, estimated values for clothing insulation and four different approaches for determining the metabolic rate. The applicability of the adaptive comfort model was investigated by comparing the survey derived comfort temperature equation with the equation used in the European Standard EN 15251. The results suggest that children are more sensitive to higher temperatures than adults with comfort temperatures being about 4 °C and 2 °C lower than the PMV and the EN 15251 adaptive comfort model predictions respectively.
school children, thermal comfort, comfort models, thermal performance, school buildings
166-182
Teli, Despoina
4e57e6dd-e0dc-49ef-b711-974ba1c978df
Jentsch, M.F.
c3be9da0-453d-4e1d-8620-0cf5873ce501
James, P.A.B.
da0be14a-aa63-46a7-8646-a37f9a02a71b
October 2012
Teli, Despoina
4e57e6dd-e0dc-49ef-b711-974ba1c978df
Jentsch, M.F.
c3be9da0-453d-4e1d-8620-0cf5873ce501
James, P.A.B.
da0be14a-aa63-46a7-8646-a37f9a02a71b
Teli, Despoina, Jentsch, M.F. and James, P.A.B.
(2012)
Naturally ventilated classrooms: an assessment of existing comfort models for predicting the thermal sensation and preference of primary school children.
Energy and Buildings, 53, .
(doi:10.1016/j.enbuild.2012.06.022).
Abstract
Current thermal comfort models are based on studies with adult subjects, mainly in offices. There is no assurance however that these models apply to children. This paper presents findings from thermal comfort surveys and measurements of indoor environmental variables in naturally ventilated classrooms in Hampshire, England. School children aged 7-11 were surveyed regarding their thermal sensation and preference in repeated survey runs outside the heating season, gathering about 1300 responses in total. The results were compared to predictions achieved with the two common approaches used in existing comfort standards, the heat balance and the adaptive comfort model. The heat balance model indices PMV (Predicted Mean Vote) and PPD (Predicted Percentage of Dissatisfied) were calculated for the survey periods, using the measured physical parameters, estimated values for clothing insulation and four different approaches for determining the metabolic rate. The applicability of the adaptive comfort model was investigated by comparing the survey derived comfort temperature equation with the equation used in the European Standard EN 15251. The results suggest that children are more sensitive to higher temperatures than adults with comfort temperatures being about 4 °C and 2 °C lower than the PMV and the EN 15251 adaptive comfort model predictions respectively.
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e-pub ahead of print date: 6 July 2012
Published date: October 2012
Keywords:
school children, thermal comfort, comfort models, thermal performance, school buildings
Organisations:
Energy & Climate Change Group
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Local EPrints ID: 341005
URI: http://eprints.soton.ac.uk/id/eprint/341005
ISSN: 0378-7788
PURE UUID: 5c702c3e-42b9-4229-8b58-9d81196ba2c7
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Date deposited: 11 Jul 2012 15:05
Last modified: 15 Mar 2024 02:46
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Author:
M.F. Jentsch
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