Influence of Instantaneous Measured Data on Evaluation Interval of Daylighting

Lenka Janečková; Stanislav Darula; Daniela Bošová

doi:10.4028/www.scientific.net/AMR.899.328

Paper Titles

Design of School Environment in the 21st Century
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EN Criteria for Evaluation of Daylight in Interiors
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Evaluation of Thermal Environment and Indoor Air Quality in University Libraries in Vienna
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Impact of the New CEN Minimum Illuminance Criterion on the Working Plane Size
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Influence of Instantaneous Measured Data on Evaluation Interval of Daylighting
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Interior Environment of the Buildings Hit by Floods
p.332

Shading by Surrounding Obstacles
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Sunlight Penetration through Sloped Window Apertures
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Thermal Stability of the Summer Period in Schoolrooms
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 899Influence of Instantaneous Measured Data on...

Influence of Instantaneous Measured Data on Evaluation Interval of Daylighting

Abstract:

Daylight varies during daytime and it is an important health aspect of indoor visual environmental quality. Measurements of daylighting are very complicated in natural conditions, therefore processing and evaluation of measured date requires special care. The instantaneous illuminances in one room and outside in Bratislava with 5 second time step were measured by two illuminance meters with data loggers. The first illuminance meter registered indoor illuminance and was placed on the level of the working plane inside the room in its centre. The second illuminance meter with an unscreened sensor was placed on the roof and measured exterior global horizontal illuminance. Daily illuminance courses derived from 5 sec instantaneous data and 1 min and 1 hour averages were inspected and evaluated. This paper presents results of evaluations of real measurements and the discussion focus on the influence of evaluation interval on the accuracy of daily illuminance courses.

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Periodical:

Advanced Materials Research (Volume 899)

Pages:

328-331

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.899.328

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Online since:

February 2014

Authors:

Lenka Janečková*, Stanislav Darula, Daniela Bošová

Keywords:

Daylighting, Daylighting Measurement Intervals, Sunlight in Interior

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