A simplified approach to thermal performance calculation for building integrated mechanically ventilated PV facades

D.G. Infield, Ursula Eicker, Volker Fux, Li Mei, Jurgen Schumacher

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The paper presents a methodology for calculating the thermal impact on building performance of an integrated ventilated PV facade. This is based on an extension of the familiar U- and g-values to take account of the energy transfer to the facade ventilation air. Four terms describing ventilation gains and transmission losses in terms of irradiance and temperature components are defined which characterise the performance of the facade in total. Steady state analysis has been applied in order to express these four parameters in terms of the detailed heat transfer process within the facade. This approach has been applied to the ventilated facade of the public library at Mataró, Spain and validated against detailed temperature measurements. Monthly U- and g-values have also been derived and the associated thermal energy gains calculated for the same building façade but transposed to the climate of Stuttgart.
Original languageEnglish
Pages (from-to)893-901
Number of pages8
JournalBuilding and Environment
Volume41
Issue number7
Early online date16 Jul 2005
DOIs
Publication statusPublished - Jul 2006

Fingerprint

Facades
ventilation
transmission loss
energy
heat
performance
irradiance
heat transfer
Values
building
Spain
temperature
air
Ventilation
climate
methodology
Thermal energy
Temperature measurement
Energy transfer
calculation

Keywords

  • ventilated facade
  • thermal performance
  • photovoltaics

Cite this

Infield, D.G. ; Eicker, Ursula ; Fux, Volker ; Mei, Li ; Schumacher, Jurgen. / A simplified approach to thermal performance calculation for building integrated mechanically ventilated PV facades. In: Building and Environment. 2006 ; Vol. 41, No. 7. pp. 893-901.
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A simplified approach to thermal performance calculation for building integrated mechanically ventilated PV facades. / Infield, D.G.; Eicker, Ursula; Fux, Volker; Mei, Li; Schumacher, Jurgen.

In: Building and Environment, Vol. 41, No. 7, 07.2006, p. 893-901.

Research output: Contribution to journalArticle

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AB - The paper presents a methodology for calculating the thermal impact on building performance of an integrated ventilated PV facade. This is based on an extension of the familiar U- and g-values to take account of the energy transfer to the facade ventilation air. Four terms describing ventilation gains and transmission losses in terms of irradiance and temperature components are defined which characterise the performance of the facade in total. Steady state analysis has been applied in order to express these four parameters in terms of the detailed heat transfer process within the facade. This approach has been applied to the ventilated facade of the public library at Mataró, Spain and validated against detailed temperature measurements. Monthly U- and g-values have also been derived and the associated thermal energy gains calculated for the same building façade but transposed to the climate of Stuttgart.

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