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Evaluation of the applicability of the quasi-steady-state overheating indicator for offices and schools

Kim Goethals (UGent) and Arnold Janssens (UGent)
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Abstract
Only recently energy efficiency and reduced cooling energy consumption have become a primary concern for many European countries. Consequently, these techniques and methods still do not receive the necessary attention in national energy performance regulations. These methods are critical particularly for buildings without active cooling. Only a limited number of countries put forward some kind of evaluation of the summer comfort. Moreover, this summer analysis does not necessarily apply to all building types. For example, the quasi-steady-state overheating indicator adopted in Belgium applies only to dwellings. As non-residential buildings account for the greater part of the total cooling demand, the authors of this paper revise the overheating indicator for offices and schools, taking into account adaptive comfort. Setting the revised indicator against the temperature excess hours predicted with the dynamic building simulation program TRNSYS reveals, compared to dwellings, a large spread between the energy sectors of the respective buildings. Meanwhile, for each energy sector, both summer comfort analysis methods are interrelated in a linear fashion. As a result, setting lower and upper bounds for the overheating indicator necessitates a large interval. Nevertheless, extended with the calculation of alternative cooling techniques, the overheating indicator can be used to attain the aims set in the Directive on the Energy Performance of Buildings.
Keywords
quas-steady-state, schools, overheating indicator, EPBD, offices

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Chicago
Goethals, Kim, and Arnold Janssens. 2011. “Evaluation of the Applicability of the Quasi-steady-state Overheating Indicator for Offices and Schools.” In Proceedings of the 9th Nordic Symposium on Building Physics (NSB 2011), ed. Juha Vinha, Jarkko Piironen, and Kati Salminen, 3:1185–1192. Tampere, Finland: Tampere University of Technology. Department of Civil Engineering.
APA
Goethals, Kim, & Janssens, A. (2011). Evaluation of the applicability of the quasi-steady-state overheating indicator for offices and schools. In J. Vinha, J. Piironen, & K. Salminen (Eds.), Proceedings of the 9th Nordic symposium on building physics (NSB 2011) (Vol. 3, pp. 1185–1192). Presented at the 9th Nordic symposium on Building Physics (NSB 2011), Tampere, Finland: Tampere University of Technology. Department of Civil Engineering.
Vancouver
1.
Goethals K, Janssens A. Evaluation of the applicability of the quasi-steady-state overheating indicator for offices and schools. In: Vinha J, Piironen J, Salminen K, editors. Proceedings of the 9th Nordic symposium on building physics (NSB 2011). Tampere, Finland: Tampere University of Technology. Department of Civil Engineering; 2011. p. 1185–92.
MLA
Goethals, Kim, and Arnold Janssens. “Evaluation of the Applicability of the Quasi-steady-state Overheating Indicator for Offices and Schools.” Proceedings of the 9th Nordic Symposium on Building Physics (NSB 2011). Ed. Juha Vinha, Jarkko Piironen, & Kati Salminen. Vol. 3. Tampere, Finland: Tampere University of Technology. Department of Civil Engineering, 2011. 1185–1192. Print.
@inproceedings{1232276,
  abstract     = {Only recently energy efficiency and reduced cooling energy consumption have become a primary concern for many European countries. Consequently, these techniques and methods still do not receive the necessary attention in national energy performance regulations. These methods are critical particularly for buildings without active cooling. Only a limited number of countries put forward some kind of evaluation of the summer comfort. Moreover, this summer analysis does not necessarily apply to all building types. For example, the quasi-steady-state overheating indicator adopted in Belgium applies only to dwellings. As non-residential buildings account for the greater part of the total cooling demand, the authors of this paper revise the overheating indicator for offices and schools, taking into account adaptive comfort. Setting the revised indicator against the temperature excess hours predicted with the dynamic building simulation program TRNSYS reveals, compared to dwellings, a large spread between the energy sectors of the respective buildings. Meanwhile, for each energy sector, both summer comfort analysis methods are interrelated in a linear fashion. As a result, setting lower and upper bounds for the overheating indicator necessitates a large interval. Nevertheless, extended with the calculation of alternative cooling techniques, the overheating indicator can be used to attain the aims set in the Directive on the Energy Performance of Buildings.},
  author       = {Goethals, Kim and Janssens, Arnold},
  booktitle    = {Proceedings of the 9th Nordic symposium on building physics (NSB 2011)},
  editor       = {Vinha, Juha and Piironen, Jarkko and Salminen, Kati},
  isbn         = {9789521525773},
  keyword      = {quas-steady-state,schools,overheating indicator,EPBD,offices},
  language     = {eng},
  location     = {Tampere, Finland},
  pages        = {1185--1192},
  publisher    = {Tampere University of Technology. Department of Civil Engineering},
  title        = {Evaluation of the applicability of the quasi-steady-state overheating indicator for offices and schools},
  volume       = {3},
  year         = {2011},
}