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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.11, no.1, 2002³â, pp.5-11
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ÆÐ³Î±¼Àý¹æ½Ä ȯ±â⠿½ÇÀÇ È¯±âÈ¿°ú
( Ventilation Effect of the Greenhouse with Folding Panel Type Windows ) |
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| º» ¿¬±¸´Â ¿©¸§ °°Àº °í¿Â±â³ª ¿ÜºÎ¿Âµµ°¡ ³ôÁö ¾Ê¾Æµµ ½Ã¼³³» ¿Âµµ°¡ ¸¹ÀÌ »ó½ÂÇÏ´Â º½ .°¡À» °°Àº ½Ã±â¿¡ ¿Â½Ç³» °í¿Â °ø±â¸¦ ¿ÜºÎ·Î ½Å¼ÓÇÏ°Ô À¯Ãâ½ÃÄÑ °Á¦È¯±â¸¦ »ç¿ëÇÏÁö ¾Ê°íµµ ¿Â½Ç³»ºÎÀÇ È¯°æÀ» Á¶Àý ÇÒ ¼ö ÀÖ´Â »õ·Î¿î ÀÚ¿¬ ȯ±ââÀ» °³¹ßÇϴµ¥ ¸ñÀûÀ» µÎ°í ¼öÇàÇÏ¿´´Ù ÆÐ³Î±¼Àý¹æ½Ä ̢̿Àº Áö¸é¿¡ °¡±î¿î ÂÊÀÇ ÆÐ³Î ÇϺο¡ ÀýÁ¡À» µÎ°í ÆÐ³Î »óºÎ°¡ Ãø°í ºÎÀ§·ÎºÎÅÍ °¡ÀÌµå ·¹ÀÏÀ» µû¶ó ÇÏÇâÇϵµ·Ï ±¸¼ºÇÏ¿© âÀÌ °³¹æµÇ°Ô ÇÏ¿´°í, õâÀº Ãø°í ºÎÀ§¿¡ ÀýÁ¡À» µÎ°í ¿ë¸¶·ç ÂÊÀÇ ÆÐ³Î »óºÎ°¡ °¡ÀÌµå ·¹ÀÏÀ» µû¶ó °æ»çÁø ÁöºØ¸éÀ» µû¶ó ÇÏÇâÇϵµ·Ï ±¸¼ºÇÏ¿© °í¿Â °ø±âÃþÀÌ Á¤Ã¼µÇ¾î ÀÖ´Â ¿Â½Ç »óºÎÀÎ Ãø°í ºÎÀ§¿Í ¿ë¸¶·ç ºÎÀ§°¡ °³¹æµÇµµ·Ï ÇÏ¿´´Ù. ±¼Àý ÆÐ³ÎÀÇ »óºÎ °³¹æ°Å¸®´Â X=L(1-cos$ heta$)·Î ³ªÅ¸³¾ ¼ö ÀÖ°í Ãø¸é °³¹æ °Å¸®´Â Y=L/2$ imes$sin$ heta$·Î ³ªÅ¸³¾ ¼ö ÀÖ´Ù. õâ °³¹æ½Ã°£Àº 4ºÐ 20ÃÊ ¼Ò¿äµÇ¾úÀ¸¸ç °³¹æ ½ÃÀÛÇÑ 2ºÐ ÈĺÎÅÍ ¿Âµµ°¡ ÇϰÇϱ⠽ÃÀÛÇÏ¿´°í, ¿ÏÀü °³¹æ 2ºÐ ÈĺÎÅÍ´Â ¿Ü±â¿Â°úÀÇ ¿ÂµµÂ÷ 3~4$^{circ}C$Á¤µµ¸¦ À¯ÁöÇÏ¸é¼ ÆòÇü»óŸ¦ À¯ÁöÇÏ¿´´Ù. ÆÐ³Î±¼Àý¹æ½Ä ȯ±â⠿½ÇÀÇ È¯±â¼º´ÉÀº üÀûȯ±â·®ÀÌ 22.3-94.3m$^3$.m$^{-2}$ .h$^{-1}$À̾úÀ¸¸ç, ȯ±â Ƚ¼ö´Â 15.2~39.3ȸ.h$^{-1}$·Î ³ªÅ¸³ª ÀϹÝÀûÀÎ ¿¬¼ÓÇü õâÀÇ 10~15ȸ.h$^{-1}$ Á¤µµ¿¡ ºñÇØ ȯ±âÈ¿°ú°¡ ³ôÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±×¸®°í º¥·ÎÇü ¿Â½Ç°úÀÇ ÃµÃ¢°³Æó½Ã ¿ÂµµÇϰÀ» ºñ±³ÇÏ¿´À» ¶§ ȯ±âÈ¿°ú°¡ 2¹è ÀÌ»ó ³ôÀº °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.$_{r}$", $mu$$_{r}$¡Ç) and the dielectric loss ($varepsilon$$_{r}$"/$varepsilon$$_{r}$¡Ç) were increased. It was caused that the absorption characteristics of the absorber were improved. The conduction loss and magnetic loss were expected to be occurred together because two matching frequencies were shown with carbon addition. It was confirmed that the matching frequency of the microwave absorber could be controlled by controlling heat-treatment temperatures and carbon additions.ons.tions.Ê¥îÜ)À¸·Î µÇ°Å³ª °ú°¡È²(ΦʥüÜ)ÀÌ µÉ ¿ì·Á°¡ ÀÖ´Â Á¦Á¶°øÁ¤(ð²ðãÍïïï)¿¡¼´Â ÈçÈ÷µé ÀÌ ¹æ¹ý(Û°Ûö)À» ¹«½Ã(ÙíãÊ)Çϰí ÀÖ´Ù. ¿©±â¼ °Á¶(Ëðà)ÇØ µÎ¾î¾ß ÇÒ °ÍÀº Ç×»ó Á¦Ç°(ð²ù¡)ÀÇ ¿ÜºÎ(èâÝ»)¸¦ ¿ÏÀü(èÇîï)È÷ °¡È²(Ê¥üÜ)½Ãų ÇÊ¿ä(ù±é©)´Â ¾ø´Ù´Â °ÍÀÌ´Ù. ´Ù°ø¼º(ÒýÍîàõ)À̳ª ±âÆ÷»ý¼º(ѨøÜßæà÷)À» Á¶Àå(ð¾íþ)ÇÏ´Â ºÒ·®°¡È²»óÅÂ(ÜôÕÞÊ¥üÜßÒ÷¾)¿Í Ç¥¸é(øúØü)¿¡¼ÀÇ °ú°¡È²»óŰ£(ΦʥüÜßÒ÷¾Êà)ÀÇ ±ÕÇü(гû¬)À» Ãë(ö¢)ÇØ Áà¾ß Çϴµ¥ ¹°·Ð(Ú¨ÒÕ) À̶§´Â °¡È²½Ã°£(Ê¥üÜãÁÊà)À» ´ÜÃà(Óõê)½ÃÄÑ¾ß ÇÑ´Ù´Â °æÁ¦Àû(ÌèðîÜ)ÀÎ Ãø¸é(ö°Øü)µµ ¾Æ¿ï·¯ °í·Á(ÍÅÕç)ÇØ¾ß ÇÑ´Ù |
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| In this study, new development of natural ventilation window was accomplished to control environment of greenhouse with no use of farced ventilation during hot season. The ventilation effect of developed ventilation window was investigated in experimental greenhouse which was designed using side wall panel and folding type panel fur natural ventilation. Folding panel type ventilation window was designed to open upper part of the side wall and top of the roof using two hinges which are located bottom of the side wall and the roof panel to grab one side of each panels and guide the other side along with the guidance rail. Developed ventilation window has top ventilation part with maximum moving distance X=¥é (1-cos$ heta$)=848.5 mm and side ventilation part with maximum moving distance Y=¥é/2 $ imes$sin$ heta$=1,184.4 mm at 45$^{circ}$ of theoretical opening angle. It took 4.5 minutes to open roof vent fully and temperature at 1.2 and 0.8 m height decreased after 1 minute from starting opening and became equilibrium state maintaining 3-4$^{circ}C$ difference after 2 minutes from complete opening. Air exchange rate was 15.2~39.3 h$^{-1}$ which was more than 10~15 h$^{-1}$ of continuous type and Venlo type greenhouse. The descent effect of temperature by ventilation windows was two times higher than Venlo type greenhouse. |
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| Ű¿öµå |
| ¾çÁöºØÇü;¿Â½Ç;ȯ±ââ;ÀÚ¿¬È¯±â;even span greenhouse;natural ventilating;venting; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.11, no.1, 2002³â, pp.5-11
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921032704)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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