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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.7, no.4, 1998³â, pp.324-329
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( Effect of roof slope on the transmissivities of direct and diffuse solar radiation in multispan glasshouse by a computer simulation ) |
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| Effect of roof slope on the transmissivities of direct and diffuse solar radiation using a computer simulation model developed by Kim and Lee(1997) was analyzed for 10-span glasshouse located in Seoul(37$^{circ}$34' N), Chonju(35$^{circ}$49' N) and Cheju(33$^{circ}$31' N). Transmissivities of diffuse solar radiation in glasshouse with roof slopes of 15, 20, 24.6, 30 and 35 degree were calculated as 61.3, 61.6, 61.7, 56.8 and 58.6%, respectively. Transmissivities of direct solar radiation(TDSR) during the period except summer season were highly affected by the roof slope. During the winter season, TDSR in glasshouse with roof slopes of 30 and 35 degree were higher than those with other roof slopes. Also, during the period except winter season, TDSR in glasshouse with roof slope of 20 degree were higher than those with other roof slopes. Difference in TDSR with latitude was significant during the period from October to February. At this period TDSR were highly appeared at lower latitude. Effect of roof slope on TDSR in S-N greenhouse was smaller than those in E-W greenhouse. It is considered that direct solar radiation highly transmitted in the glasshouse with roof slope of 20 degree. |
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| ¿Â½Ç;ÀÏ»ç Åõ°úÀ²;ÁöºØ°æ»ç°¢;ÄÄÇ»ÅÍ ½Ã¹Ä·¹ÀÌ¼Ç ¸ðÇü;Greenhouse;Transmissivity of solar radiation;Roof slope;Computer simulation model; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.7, no.4, 1998³â, pp.324-329
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811922406337)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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