The role of spectral response of photosensors in daylight responsive systems

DSpace/Manakin Repository

Show simple item record

dc.contributor.author Doulos, L en
dc.contributor.author Tsangrassoulis, A en
dc.contributor.author Topalis, FV en
dc.date.accessioned 2014-03-01T01:29:20Z
dc.date.available 2014-03-01T01:29:20Z
dc.date.issued 2008 en
dc.identifier.issn 0378-7788 en
dc.identifier.uri http://hdl.handle.net/123456789/19230
dc.subject Daylight en
dc.subject Photosensor en
dc.subject Spectral response en
dc.subject.classification Construction & Building Technology en
dc.subject.classification Energy & Fuels en
dc.subject.classification Engineering, Civil en
dc.subject.other Computer simulation en
dc.subject.other Daylighting en
dc.subject.other Electric lighting en
dc.subject.other Energy conservation en
dc.subject.other Illuminating engineering en
dc.subject.other Optical resolving power en
dc.subject.other Photosensitivity en
dc.subject.other Daylight en
dc.subject.other Photosensors en
dc.subject.other Spectral response en
dc.subject.other Optical sensors en
dc.title The role of spectral response of photosensors in daylight responsive systems en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.enbuild.2007.04.010 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.enbuild.2007.04.010 en
heal.language English en
heal.publicationDate 2008 en
heal.abstract Lighting control technologies using photosensors have a great potential for energy savings in areas with high levels of daylight. Although the proper application of these controls can exploit this potential, unfortunately, it has been accomplished in a small percentage of new projects. One reason is the difficulty in justification of energy savings, which in turn, is directly linked with the simulation of the behaviour of these lighting controls. The core of these systems is the photosensor, which adjusts the electric light output in proportion to the amount of the daylight that detects, using its spatial and spectral response. The aim of this study is to quantify the impact of photosensor spectral response on its illuminance values, by taking into account various daylight spectra as these are modified due to various types of coloured glazing. Five commercial photosensors were selected and their spectral response was measured. In addition, spectral transmittance of 16 commercial types of glazing was measured as well. Using these data, a set of simulations were performed using three colour channels in a typical office room and the relative differences in illuminance - and thus energy savings - among the photosensors are presented. The results show that differences are significant ranging from 36 to 118%, a fact that can affect the estimated payback period of a lighting control. system. (c) 2007 Elsevier B.V. All rights reserved. en
heal.publisher ELSEVIER SCIENCE SA en
heal.journalName Energy and Buildings en
dc.identifier.doi 10.1016/j.enbuild.2007.04.010 en
dc.identifier.isi ISI:000252789000020 en
dc.identifier.volume 40 en
dc.identifier.issue 4 en
dc.identifier.spage 588 en
dc.identifier.epage 599 en

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record