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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.15, no.4, 2006³â, pp.306-316
¿Â½ÇÁöºØ Â÷±¤°ú ¼ö¸· ¼öÁØ¿¡ µû¸¥ ³Ã¹æÈ¿°ú ºÐ¼®
( Analysis of Cooling Effect on the Plastic Film Cover of Greenhouse Module Depending on the Shade and Water Curtain )
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In this study, the effect of the shade level, water flow rate applied to the shades and the temperature of water on the greenhouse cooling was investigated depending on the shade level of 0, 35, 55, 75%, and water flow rate and water temperature by the test on the small wooden frames to find out the low cost cooling method. With increasing of the dry bulb temperature of outside air, the dry bulb temperature in the wooden frames increased. For the frames with the shade and water, inside temperatures of the frames were lower of -0.2$sim$-1.2$^{circ}C$ than the temperature of the outside air and higher than the water temperature. For the frames without water, inside temperatures of the frames were higher of 1.7$sim$4$^{circ}C$ than the outside and not affected by the shade level very much. The water flow rate and the temperature of the water were not the important factors to decrease the inside temperatures in the frames. The black globe temperature became lower with increasing of shade level. The shade frames with water curtain showed the best cooling effect because of reducing thermal radiation and cooling the plastic film cover. The surface temperatures of the plastic film cover for the water supplied modules became lower with increasing of the shade level. The relative humidity was decreased with the dry bulb temperature in the frame increasing and not affected by the dry bulb temperature of the outside air for the frames with the shade and water.
 
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°Ç±¸¿Âµµ;¹°È긲;»ó´ë½Àµµ;¿Â½Ç³Ã¹æ;Â÷±¤¸·;Èæ±¸¿Âµµ;black globe temperature;dry bulb temperature;greenhouse cooling;relative humidity;shade;water evaporation;
 
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.15, no.4, 2006³â, pp.306-316
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200608506270526)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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