Experimental Analysis on a 1:2 Scale Model of the Modified Double Light Pipe

This paper is focused on the daylighting system named Modified Double Light Pipe (MDLP) designed by the authors as an evolution of the Double Light Pipe to eliminate the drawbacks due to its encumbrance and the high luminance of its upper portion. They cut off its lower part and applied a circular l...

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Main Authors: Paolo Zazzini, Alessandro Di Crescenzo, Luigi Pio Rossitti, Roberta Mirando
Format: Article
Language:English
Published: SolarLits 2022-11-01
Series:Journal of Daylighting
Subjects:
Online Access:https://solarlits.com/jd/9-228
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author Paolo Zazzini
Alessandro Di Crescenzo
Luigi Pio Rossitti
Roberta Mirando
author_facet Paolo Zazzini
Alessandro Di Crescenzo
Luigi Pio Rossitti
Roberta Mirando
author_sort Paolo Zazzini
collection DOAJ
description This paper is focused on the daylighting system named Modified Double Light Pipe (MDLP) designed by the authors as an evolution of the Double Light Pipe to eliminate the drawbacks due to its encumbrance and the high luminance of its upper portion. They cut off its lower part and applied a circular light shelf to the system to prevent people from seeing the upper brightest portion of it. An experimental activity under real sky has been carried out for four months on a reduced scale model of the MDLP. The dynamic metrics DA, cDA, DR, and U0 have been calculated on monthly basis. The results can be considered satisfactory both in terms of illuminance distribution and daylight autonomy, as well as illuminance uniformity, taking into account that the tests have been carried out in winter, under unfavorable climatic conditions. The results show that, even in winter climatic conditions, the MDLP gives a contribution to delivering daylight in the intermediate room both on sunny and cloudy days with good uniformity of illuminance distribution on the horizontal work plane.
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spelling doaj.art-f731036b9ed744a4878254b6107501712022-12-22T03:35:35ZengSolarLitsJournal of Daylighting2383-87012022-11-019222824110.15627/jd.2022.17Experimental Analysis on a 1:2 Scale Model of the Modified Double Light PipePaolo Zazzini0Alessandro Di Crescenzo1Luigi Pio Rossitti2Roberta Mirando3Department INGEO, University “G. D’Annunzio”, Viale Pindaro 42, 65127 Pescara, ItalyDepartment INGEO, University “G. D’Annunzio”, Viale Pindaro 42, 65127 Pescara, ItalyDepartment INGEO, University “G. D’Annunzio”, Viale Pindaro 42, 65127 Pescara, ItalyDepartment INGEO, University “G. D’Annunzio”, Viale Pindaro 42, 65127 Pescara, ItalyThis paper is focused on the daylighting system named Modified Double Light Pipe (MDLP) designed by the authors as an evolution of the Double Light Pipe to eliminate the drawbacks due to its encumbrance and the high luminance of its upper portion. They cut off its lower part and applied a circular light shelf to the system to prevent people from seeing the upper brightest portion of it. An experimental activity under real sky has been carried out for four months on a reduced scale model of the MDLP. The dynamic metrics DA, cDA, DR, and U0 have been calculated on monthly basis. The results can be considered satisfactory both in terms of illuminance distribution and daylight autonomy, as well as illuminance uniformity, taking into account that the tests have been carried out in winter, under unfavorable climatic conditions. The results show that, even in winter climatic conditions, the MDLP gives a contribution to delivering daylight in the intermediate room both on sunny and cloudy days with good uniformity of illuminance distribution on the horizontal work plane.https://solarlits.com/jd/9-228daylightlight shelfdouble light pipemodified double light pipe
spellingShingle Paolo Zazzini
Alessandro Di Crescenzo
Luigi Pio Rossitti
Roberta Mirando
Experimental Analysis on a 1:2 Scale Model of the Modified Double Light Pipe
Journal of Daylighting
daylight
light shelf
double light pipe
modified double light pipe
title Experimental Analysis on a 1:2 Scale Model of the Modified Double Light Pipe
title_full Experimental Analysis on a 1:2 Scale Model of the Modified Double Light Pipe
title_fullStr Experimental Analysis on a 1:2 Scale Model of the Modified Double Light Pipe
title_full_unstemmed Experimental Analysis on a 1:2 Scale Model of the Modified Double Light Pipe
title_short Experimental Analysis on a 1:2 Scale Model of the Modified Double Light Pipe
title_sort experimental analysis on a 1 2 scale model of the modified double light pipe
topic daylight
light shelf
double light pipe
modified double light pipe
url https://solarlits.com/jd/9-228
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AT alessandrodicrescenzo experimentalanalysisona12scalemodelofthemodifieddoublelightpipe
AT luigipiorossitti experimentalanalysisona12scalemodelofthemodifieddoublelightpipe
AT robertamirando experimentalanalysisona12scalemodelofthemodifieddoublelightpipe