Omslag PDF slutrapport Belok.indd - Lunds Tekniska Högskola

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76 Solavskärmning och dagsljuslänkning, oktober, 07 University, Lund Institute of Technology, Dept. of Construction & Architecture, Div. of Energy and Building Design. Statens Energimyndighet (2003). Energiläget 2002. November 2002. 41 sidor. Veitch, J. A. & Newsham, G. R. (1996). Determinants of lighting quality I: State of the science. (NRCC-39866). 1996 Annual Conference of the Illuminating Engineering Society of North America, Cleveland, OH, Aug 5-7 1996. Wall, M. & Bülow-Hübe, H. (eds.) (2001). Solar Protection in Buildings (Report TABK—01/3060). Lund, Sweden: Lund University Dept. of Construction & Architecture. Wall, M. & Bülow-Hübe, H. (eds.) (2003). Solar Protection in Buildings. Part 2: 2000-2002. (Report EBD-R--03/1). Lund, Sweden: Lund University Dept. of Construction & Architecture.
English summary 77 English summary This report is an evaluation of a demonstration project for an innovative Venetian blind with a new-developed control system together with daylight-controlled office lighting. The demonstration project was brought as a follow-up to the technical procurement program for Daylight and Solar Shading that was conducted in 2004 and has been financed by BELOK and the National Energy Administration. The general background for the technical procurement program was that BELOK wanted to find better solutions that have the potential to improve the indoor climate and reduce the energy demand in office buildings. A particular goal for the competition was to develop new products that can be used for refurbishment in existing office buildings. Daylight has the ability to provide very high illuminance levels indoors, especially in the period from March to October, and can thus be used to replace artificial lighting. All technologies which can handle the difficult compromise between daylight admittance, view out, glare protection and solar shading are particularly interesting. Technically, the evaluated system with a motorised interior blind and a daylight controlled electric light fitting has performed very well. The type of motor that was chosen for the blind gives a very precise control of the blind, and even after a large number of control sequences, the blind always returns to the right position, i.e. in the slat position that the control system desires. In order to avoid glare a basic prerequisite is that direct solar radiation is avoided. This is the main concept of the evaluated control system: sun-tracking or control with respect to solar height and cut-off angles of the blind. Since the solar heights are high during the summer the blind can be kept rather open, allowing for a view out. Our conclusion is however that the blind should be closed more to reduce glare from the sky and from the blind itself. This applies especially to the situation with intense sunlight, which is the situation that normally also brings the highest illuminance values. If the control system is modified to close the blind more during strong sunlight, this would also provide for a more efficient solar shading, since the g-value (the total solar energy transmittance) is reduced. Unfortunately, the view out is then also reduced.
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Solavskärmning och dagsljuslänkni
Page 3 and 4:
Solavskärmning och dagsljuslänkni
Page 5 and 6:
Beställargruppen lokaler, BELOK,
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Sammanfattning Sammanfattning Denna
Page 9 and 10:
Sammanfattning program för att bed
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Innehåll Innehåll Sammanfattning
Page 13 and 14:
Förord Förord Projektet har finan
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1 Bakgrund Bakgrund Denna studie ä
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Bakgrund och därmed associerad bl
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2 Målsättning och syfte Målsätt
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3 Metod Metod Den solavskärmningsl
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Metod kan lägesbestämmas med myck
Page 25 and 26:
Metod Den ovan visade styrprincipen
Page 27 and 28: Metod Persiennen levererades med eg
Page 29 and 30: Metod Figur 3.11 Utegivare för glo
Page 31 and 32: Metod 3.5 Test av ljuslänkande del
Page 33 and 34: 4 Resultat 4.1 Persiennens generell
Page 35 and 36: Resultat påverkar luminansen mot f
Page 37 and 38: Resultat Figur 4.4 Luminansbild 19
Page 39 and 40: Resultat varje dag, ca 0,7 kWh/dag.
Page 41 and 42: Resultat Mätningar av belysningsst
Page 43 and 44: Resultat grund av växlande ljussty
Page 45 and 46: Resultat ren i rummen i stort sett
Page 47 and 48: Resultat En dag (7/9) som började
Page 49 and 50: Resultat mottar och följer så att
Page 51 and 52: Resultat nare. Detta förklarar var
Page 53 and 54: Belysningsstyrka inne (Lux) 700 600
Page 55 and 56: Resultat denna punkt som det man br
Page 57 and 58: Resultat Figur 4.27 Bild simulerad
Page 59 and 60: Resultat 4.4 Jämförelse av temper
Page 61 and 62: 30 28 26 24 22 20 18 16 06-05-12 12
Page 63 and 64: Resultat flöden som angivits i Tab
Page 65 and 66: Resultat det tunga fallet avviker.
Page 67 and 68: Resultat således är den enda stö
Page 69 and 70: 5 Diskussion Diskussion Dagsljus ti
Page 71 and 72: Diskussion forskning visar också p
Page 73 and 74: 6 Slutsatser Slutsatser 6.1 Generel
Page 75 and 76: Slutsatser stegbanden på persienne
Page 77: Referenser 75 Referenser Brainard,
Page 81 and 82: 79 English summary able tool for th
Page 83 and 84: Appendix 1 -- Belysningsstyrkor i m
Page 87 and 88: Kvot belysning inne/ute (%) 85 5 4
Page 89 and 90: 87 Appendix 2 Appendix 2 -- Belysni
Page 94: ISSN 1671-8136 ISBN 978-91-85147-20
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Omslag PDF slutrapport Belok.indd - Lunds Tekniska Högskola

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