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Ingineria Iluminatului - Journal of Lighting Engineering - Prof. Florin ...

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interrelation <strong>of</strong> shading and daylighting. These two<br />

vital functions have proven to be contradictory in<br />

the mentioned case, where the study <strong>of</strong> an existing<br />

building is concerned. However, shading and<br />

daylighting can be totally combined, when both are<br />

examined at the early stage <strong>of</strong> the building design.<br />

In such cases, the designer should take into account<br />

the various functions <strong>of</strong> the transparent elements<br />

during the decision upon the envelope and the<br />

geometry <strong>of</strong> the building, with regards to its use,<br />

geographical location and user’s needs.<br />

Furthermore, the ongoing study and development<br />

<strong>of</strong> advanced strategies, which act both as solar<br />

control and daylighting intensifiers, resolve the<br />

barriers identified above and promote the design <strong>of</strong><br />

sustainable buildings.<br />

The introduction <strong>of</strong> innovative, advanced<br />

daylighting strategies and systems can considerably<br />

reduce a building’s electricity consumption and<br />

also significantly improve the quality <strong>of</strong> light in an<br />

indoor environment. Such strategies either rely<br />

primarily on admitting diffuse skylight and<br />

rejecting direct sunlight, or use primarily direct<br />

sunlight, sending it onto the ceiling or to locations<br />

above eye height. Main representatives <strong>of</strong><br />

advanced systems that combine shading and<br />

daylighting are the prismatic and laser-cut panels,<br />

anidolic openings, light shelves and reflective<br />

blinds or louvers.<br />

REFERENCES<br />

1 Anon. 2003, “Environmentally Sustainable<br />

Buildings: Challenges and Policies”, OECD<br />

Policy Brief, OECD.<br />

2 Tsikaloudaki Katerina, 2003, “Development <strong>of</strong><br />

mathematical models for the estimation <strong>of</strong><br />

daylight levels in the outdoor and indoor<br />

environment and study <strong>of</strong> the main parameters<br />

affecting daylighting”, Ph-D thesis, Aristotle<br />

University <strong>of</strong> Thessaloniki, Greece.<br />

3 EN 13363-1, 2003, “Solar protection devices<br />

combined with glazing-calculation <strong>of</strong> solar and<br />

light transmittance”, Brussels.<br />

4 Erhorn H., St<strong>of</strong>fel J., 1994, “Adeline 2.0,<br />

Documentation <strong>of</strong> the s<strong>of</strong>tware package<br />

Adeline”, IEA Solar Heating and Cooling Task<br />

12.<br />

5 DeLaHunt M. J., Wheeling T. and Palmiter l.,<br />

1985, “SUNCODE-PC: a program user’s<br />

manual”, Ecotope, Washington.<br />

6 Baker N., Fanchiotti A. and Steemers K., 1993,<br />

“Daylighting in Architecture: a European<br />

reference book”, Commission <strong>of</strong> the European<br />

Communities, DG XII for Science, Research<br />

and Development, James and James, Brussels.<br />

7 American Society <strong>of</strong> Heating, Refrigerating and<br />

Air-Conditioning Engineers, 1997, “ASHRAE<br />

Handbook: Fundamentals”, SI edition, Atlanta.<br />

8 Papakonstantinou M., 1999, “The contribution<br />

<strong>of</strong> the Greek Public Power Corporation in<br />

confronting the greenhouse effect”, proc. <strong>of</strong><br />

HELECO Conference -Environmental<br />

Technology for the 21st century-, pages 319-<br />

325, Thessaloniki.<br />

Katerina TSIKALOUDAKI<br />

Dr civil engineer,<br />

Laboratory <strong>of</strong> Building Construction<br />

and Physics, Department <strong>of</strong> Civil<br />

<strong>Engineering</strong>, Aristotle University <strong>of</strong><br />

Thessaloniki.<br />

PO BOX 429, 541 24 Thessaloniki;<br />

Phone: 0030 2310 995770; Fax:<br />

0030 2310 995603<br />

e-mail: katgt@civil.auth.gr<br />

Katerina Tsikaloudaki has studied Civil<br />

<strong>Engineering</strong> in the Aristotle University <strong>of</strong><br />

Thessaloniki. She obtained her PhD in the same<br />

Institution in 2003 and is currently working in<br />

the Laboratory <strong>of</strong> Building Construction and<br />

Physics <strong>of</strong> the Civil <strong>Engineering</strong> Department<br />

as a scientifi c and teaching associate. Her<br />

research interests focus on energy conservation,<br />

bioclimatic design and daylighting.<br />

Received 20 July 2005<br />

Reviewers: Dr. David CARTER, Pr<strong>of</strong>. Liisa<br />

HALONEN, Pr<strong>of</strong>. Koichi IKEDA<br />

INGINERIA ILUMINATULUI 15-2005 39<br />

7

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