Calculation of configuration factor of inclined skylight and computerization of a via-perspective method
Bibliographic Information
- Other Title
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- 傾斜天窓の立体角投射率計算法と媒介透視図法の電算化
- ケイシャ テンマド ノ リッタイカク トウシャリツ ケイサンホウ
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Description
It is much simpler and more precise to obtain a configulation factor from the illuminance of calculating points than from the area measurements of the barrel-shaped distorting figure by the orthographic projection.<BR>There are three methods for calculating the illuminance of the calculating points for the basis of the configulation factor:(a) to calculate directly from the value of the coordinates on the inclined surface, (b) to calculate the coordinates of the via-perspective figure obtained from the dimentions of the inclined skylight, (c) to convert the angles measured by the transit into the coordinates of the via-perspective figure.<BR>The operating procedure in the modified integration formula, when calculating the illuminance of the flat surface source in terms of the via-perspective figure, has been altered in accordance with its computerization.<BR>When as above-mentioned calculating to obta in with a mode of seven-figures, which is commonly used in the personal computer, there possibly happens a great miscalculation under a certain condition.<BR>Therefore, the cause and precaution against this miscalculation will be described in the basic program.
Journal
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- JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
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JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 73 (6), 325-330, 1989
The Illuminating Engineering Institute of Japan
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Details 詳細情報について
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- CRID
- 1390282679061823360
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- NII Article ID
- 130006765705
- 40004319987
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- NII Book ID
- AN00268860
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- ISSN
- 1349838X
- 21851506
- 00192341
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- NDL BIB ID
- 3231466
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed