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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.20, no.2, 2011³â, pp.78-82
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õâÀ» ¼³Ä¡ÇÑ Å丶Åä Àç¹è ´Üµ¿ ¿Â½ÇÀÇ È¯±â¼º´É ºÐ¼®
( Analysis on the Ventilation Performance of Single-span Tomato Greenhouse with Roof Windows ) |
| ³²»ó¿î;±è¿µ½Ä;; Ãæ³²´ëÇб³ Áö¿ªÈ¯°æÅä¸ñÇаú;»ó¸í´ëÇб³ ½Ä¹°»ê¾÷°øÇаú;·µ°Å½º´ëÇб³ ȯ°æ°úÇаú;
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| ¿Â½ÇÀÇ È¯±â¼³°è ±âÁØ ¼³Á¤ ¹× ´Üµ¿ ÇÃ¶ó½ºÆ½ ¿Â½ÇÀÇ ¿øÇü õâ ¼³Ä¡ °¡À̵å¶óÀÎ Á¦Á¤À» À§ÇÑ ±âÃÊÀڷḦ Á¦°øÇÒ ¸ñÀûÀ¸·Î õâÀÌ ¼³Ä¡µÈ Å丶Åä Àç¹è ´Üµ¿ ¿Â½Ç¿¡¼ ȯ±â½ÇÇèÀ» ÅëÇÏ¿© ÀÚ¿¬È¯±â ¼º´ÉÀ» ºÐ¼®Çϰí, ¿ÆòÇü ¸ðµ¨À» ÀÌ¿ëÇÏ¿© ¿Â½Ç Àç¹è Å丶ÅäÀÇ Áõ¹ß ÃßÁ¤ÇÏ¿´´Ù. Á÷°æ 60cmÀÇ ¿øÇü õâÀ» ÁöºØÀÇ Áß¾Ó¿¡ 8m °£°ÝÀ¸·Î ¼³Ä¡ÇÑ ´Üµ¿¿Â½ÇÀÇ ÀÚ¿¬È¯±â ¼º´ÉÀ» ½ÇÇèÇÑ °á°ú ȯ±âȸ¼ö´Â ºÐ´ç 0.02~0.32ȸ(Æò±Õ 0.17ȸ $min^{-1}$)ÀÇ ¹üÀ§¸¦ º¸¿© »ó´çÈ÷ ³·Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±×·¯³ª »ó¾÷¿ë ¿Â½ÇÀÇ ±ÇÀåȯ±âÀ²°ú ºñ±³Çϸé 6m °£°ÝÀ¸·Î ¼³Ä¡ÇÒ °æ¿ì¿¡´Â º½À̳ª °¡À»Ã¶¿¡ ÇÊ¿äÇÑ È¯±â·®À» ÃæÁ·ÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÇ¸ç, ¿©¸§Ã¶ ±ÇÀåȯ±â¸¦ À§Çؼ´Â 2m Á¤µµÀÇ °£°ÝÀ¸·Î ¼³Ä¡ÇÑ ÇØ¾ß¸¸ °¡´ÉÇÒ °ÍÀ¸·Î ÆÇ´ÜµÇ¹Ç·Î ±¤Åõ°ú¸¦ ÀúÇØÇÏÁö ¾ÊÀ¸¸é¼ ÁöºØÀÇ °³±¸¸éÀûÀ» È®´ëÇÒ ¼ö ÀÖ´Â ¹æ¾ÈÀ» ã¾Æ¾ß ÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù. ½ÇÇè¿¡ »ç¿ëÇÑ ´Üµ¿ ¿Â½ÇÀº ÀÎÁ¢ µ¿ °£°ÝÀÌ 1.2m¿¡ ºÒ°úÇÑ ¹ÐÁýµÈ ´ÜÁö ³»¿¡ À§Ä¡Çϰí ÀÖ¾î¼ ÃøÃ¢ ÁÖº¯ÀÇ ¿ÜºÎ dz¼ÓÀÌ ÃÖ´ë $0.9m{cdot}s^{-1}$(Æò±Õ $0.4m{cdot}s^{-1}$¿¡ ºÒ°úÇϰí dz·Â¿¡ ÀÇÇÑ È¯±âÈ¿°ú¸¦ ±â´ëÇϱⰡ ¾î·Á¿ü´Ù. ȯ±â·®°ú dz¼Ó ¹× ½Ç³»¿Ü ¿ÂµµÂ÷¿ÍÀÇ °ü°è¸¦ ºñ±³ ºÐ¼®ÇØ º» °á°ú Áß·Âȯ±â°¡ ¿ì¼¼ÇÔÀ» È®ÀÎ ÇÒ ¼ö ÀÖ¾ú´Ù. º» ȯ±â½ÇÇè ÀڷḦ ¿Â½ÇÀÇ È¯±â¼³°è¸¦ À§ÇÑ ¿ÆòÇü¸ðµ¨¿¡ Àû¿ëÇÏ¿© Áõ¹ß»ê°è¼ö¸¦ ÃßÁ¤ÇØ º» °á°ú 0.39~0.85ÀÇ ¹üÀ§(Æò±Õ 0.62)¸¦ º¸¿´°í, ´Ù¸¥ ¿¬±¸ÀÚµéÀÌ Á¦½ÃÇÏ´Â ÀϹÝÀûÀÎ ¿Â½ÇÀÇ ¼³°è ±ÇÀå °ª°ú À¯»çÇÑ °æÇâÀ» ³ªÅ¸³Â´Ù. µû¶ó¼ Å丶Åä Àç¹è ´Üµ¿ ÇÃ¶ó½ºÆ½ ¿Â½ÇÀÇ È¯±â¼³°è¿¡¼ Áõ¹ß»ê°è¼ö´Â 0.6 Á¤µµ¸¦ »ç¿ëÇϸé Àû´çÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| Ventilation rates, inside and outside weather data were measured in a arch-shape single-span plastic greenhouse growing tomatoes. On the roof of the experimental greenhouse, round windows which have a diameter of 0.6 m were installed at intervals of 8m. It showed that the number of air changes in this greenhouse were average 0.17 volumes per minute and in the range of 0.02 to 0.32 volumes per minute. These air changes are insufficient to meet the recommended ventilation rate for commercial greenhouses, and it is estimated that interval of 6 m is appropriate for spring or fall season. For summer season, it is necessary to narrow the space or to enlarge the open area of roof windows. Using the heat balance model, the evapotranspiration coefficients of greenhouse tomatoes were estimated from experimental ventilation data, overall heat transfer and solar radiation. It showed that the evapotranspiration coefficients were average 0.62 and in the 0.39 to 0.85 range. We suggest applying 0.6 as the evapotranspiration coefficient in design of ventilation for the single-span tomato greenhouses. |
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| ´Üµ¿ ÇÃ¶ó½ºÆ½ ¿Â½Ç;¿ÆòÇü¸ðµ¨;ÀÚ¿¬È¯±â;Áõ¹ß»ê°è¼ö;õâ;evapotranspiration coefficient;heat balance model;natural ventilation;roof window;single-span plastic greenhouse; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.20, no.2, 2011³â, pp.78-82
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201125247229353)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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