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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.6, no.3, 1997³â, pp.216-224
½Ã¼³ ³ó¾÷ÀÇ ¿­È¯°æÁ¶ÀýÀ» À§ÇÑ Àú¿Â »óº¯È­ ¹°ÁúÀÇ Ãà¿­ Ư¼º
( Thermal Storage Characteristics of Low Temperature Phase Change Materials for Thermal Environmental Control of Protected Cultivation System )
¼ÛÇö°©;À¯¿µ¼±;³ëÁ¤±Ù;¹ÚÁ¾±æ; ÃæºÏ´ëÇб³ ³ó¾÷±â°è°øÇаú;³ó¾÷±â°èÈ­¿¬±¸¼Ò ³ó¾÷¿¡³ÊÁö¿¬±¸½Ç;ÃæºÏ´ëÇб³ ³ó¾÷±â°è°øÇаú;ÃæºÏ´ëÇб³ ³ó¾÷±â°è°øÇаú;
 
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³ÃÃà¿­ Àá¿­Àç·Î $Na_2$SO$_4$.10$H_2O$¸¦ ¼±Á¤ÇÏ¿© ³ÃÃà¿­À» À§ÇÑ Àá¿­Ãà¿­ ¿Âµµ ¼öÁØÀ» NH$_4$Cl°ú KCIÀ» Àá¿­¿Âµµ Á¶ÀýÁ¦·Î Ȱ¿ëÇÏ¿© 16$^{circ}C$¿¡¼­ -0.3$^{circ}C$±îÁö Á¶ÀýÇÏ¿´À¸¸ç, »óº¯È­ »çÀÌŬ¿¡ ÀÇÇÑ ¿­Æ¯¼º º¯È­ ÃßÀÌ¿Í ¹°¼ºÀÇ ¾ÈÁ¤¼ºÀ» ½ÇÇè ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù. 1. ³ÃÃà¿­Àç·Î ¼±ÅÃÇÑ $Na_2$SO$_4$.10$H_2O$´Â ¹°¼ºÀÌ ºÒ¾ÈÁ¤ÇÑ »óº¯È­ Àá¿­ Àç¿´À¸³ª, Á¶ÇÙÁ¦·Î BRX¸¦, ÁõÁ¡Á¦·Î CBP¸¦ ÷°¡ÇÏ¿© ¹°¼ºÀ» ¾ÈÁ¤½ÃÄ×À¸¸ç, NH$_4$Cl°ú KClÀ» »óº¯È­ ¿ÂµµÁ¶ÀýÁ¦·Î ¼±ÅÃÇÏ¿© »óº¯È­ ¿Âµµ¸¦ Á¶ÀýÇÒ ¼ö ÀÖ´Ù. 2. SSD£«NH$_4$Cl¼­ NH$_4$ClÀ» g~21wt%·Î Áõ°¡½ÃÅ´¿¡ µû¶ó »óº¯È­ ¿Âµµ´Â 16~-0.3$^{circ}C$·Î Á¶ÀýÇÒ ¼ö ÀÖ¾úÀ¸¸ç, Àá¿­Ãà¿­·®Àº 30kca1/kg¿¡¼­ 23.4kca1/kgÀ¸·Î °¨¼ÒÇÏ¿´°í, »óº¯È­ ¿ÂµµÁ¶ÀýÁ¦, KClÀ» l7wt%¿¡¼­ 25wt%·Î Áõ°¡½ÃÅ´¿¡ µû¶ó »óº¯È­ ¿Âµµ¸¦ 14$^{circ}C$¿¡¼­ 4$^{circ}C$±îÁö Á¶ÀýÇÒ ¼ö ÀÖ¾ú´Ù.
In the recent 10 years the protected cultivation area in Korea has been increased rapidly, and now it is very important issue to develop the heating and cooling system using the renewable energy, because the greenhouse heating and cooling cost is increased with the fossil fuel price rises. Actually the development of the cooling system is more difficult than that of the heating system, since the cooling load of greenhouse in the summer season is 2¡ª3 times larger than the heating load in the winter season. In this study low temperature phase change materials (LTPCM) for the cold storage system were selected and developed. The theoretical and experimental analysis of thermal characteristics of LTPCM makes it possible to control the phase change temperature and stabilize the thermo-physical properties. LTPCM developed in this study has good advantages to be used as the cold storage not only for the house and working space in factory but also for the cold storage of agricultural and live-stock products.
 
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¿Â½Ç;³­¹æ;³ÃÃà¿­;¿­È¯°æ;Àú¿ÂÀúÀå;greenhouse;heating;cooling;thermal environment;thermal storage;
 
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.6, no.3, 1997³â, pp.216-224
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711922405513)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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