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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.16, no.4, 2007³â, pp.291-296
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( Effects of Circulation Fans on Uniformity of Meteorological Factors in Warm Air Heated Greenhouse )
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ÀÌ ¿¬±¸´Â ¼øÈ¯ÆÒ¿¡ ÀÇÇØ ¸¸µé¾îÁö´Â ¼öÆòÀûÀÎ °ø±âÈ帧ÀÌ È¯°æ¿äÀεéÀÇ ¼öÆò ¹× ¼öÁ÷ºÐÆ÷¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇϱâ À§ÇØ ¼öÇàÇÏ¿´´Ù. ¼øÈ¯ÆÒ °¡µ¿ À¯¹«¿¡ µû¶ó ±â·ù ¼Óµµ, ±â¿Â, »ó´ë½Àµµ ¹× $CO_2$³óµµÀÇ 3Â÷¿ø ºÐÆ÷¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¿Â½Ç³» ±â»óÀÎÀÚ ºÐÆ÷ÀÇ ±ÕÀϼºÀº ¿Ü±â¿ÂÀÌ ³·¾ÆÁü¿¡ µû¶ó °¨¼ÒÇÏ¿´´Ù. ¹«Ã³¸®½Ã ±â¿Â ÆíÂ÷´Â 4.7, ½Àµµ ÆíÂ÷´Â 19%À̾ú´Âµ¥ ÆÒÀ» °¡µ¿ÇÑ °æ¿ì ±× ÆíÂ÷µéÀº °¢°¢ 2.2, 6.3%·Î °¨¼ÒÇÏ¿´´Ù. ÆÒ ¿ë·®ÀÌ Áõ°¡ÇÒ¼ö·Ï ÃøÁ¡°£ ±â¿Â ÆíÂ÷°¡ ÁÙ¾îµé¾ú´Âµ¥, ¿Â½Ç ¹Ù´Ú¸éÀû´ç $0.0104m^3{cdot}s^{-1}$ ¿ë·®ÀÇ ÆÒÀ¸·Î ¿Â½Ç³» ÀûÁ¤ÇÑ °ø±â À¯µ¿À» ¸¸µé ¼ö ÀÖ¾ú´Ù. ±â¿Â ¹× $CO_2$ ³óµµÀÇ ¼öÁ÷ºÐÆ÷´Â ³ôÀ̳ª ÆÒ ¿ë·®¿¡ °ü°è¾øÀÌ »ó´çÈ÷ ±ÕÀÏÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Æø ¹æÇâÀÇ ±â¿Â ÆíÂ÷¸¦ ÁÙÀÏ ¼ö ÀÖ´Â ÆÒ ¹èÄ¡¿Í ¼Ò¿ë·®ÀÇ ÆÒÀ» ´Ù¼ö ¼³Ä¡ÇßÀ» ¶§ÀÇ È¿°ú¿¡ ´ëÇÑ ¿¬±¸°¡ ´õ ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù.
This study was conducted to investigate the effects of horizontal air flow produced by circulation fans on horizontal and vertical profiles of meteorological factors. The three-dimensional distributions of air speed, air temperature, relative humidity and carbon dioxide $(CO_2)$ concentration were measured with and without the fans in operation. The uniformity of the spatial distribution of meteorological factors decreased as the outside air temperature decreased. In "fans off" condition, spatial variations of $4.7^{circ}C$ in air temperature, 19% in relative humidity were detected. When the fans were operated, these variations were reduced to 2.2 and 6.3%, respectively. As the fan capacity increased, the difference in air temperature among sampling points decreased. The fan capacity of $0.0104m^3{cdot}s^{-1}{cdot}m^{-2}$ was enough to obtain a reasonable air flow in greenhouse. The vertical profiles of air temperature and $CO_2$ concentration were reasonably uniform regardless of measurement height and fan capacity. Further researches on the position of fans to reduce the difference in air temperature along the width and the effects of using a larger number of smaller fans are required.
 
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°ø±â¼øÈ¯;±¹È­;±â¿ÂºÐÆ÷;¼øÈ¯ÆÒ;air circulation;chrysanthemum;circulation fan;temperature distribution;
 
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.16, no.4, 2007³â, pp.291-296
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414475344)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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