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Çѱ¹¼öÀÚ¿øÇÐȸ / v.35, no.2, 2002³â, pp.221-229
°Ýº®½Ä ºÐ¸»È°¼ºÅº Á¢ÃËÁ¶ÀÇ Èå¸§ÇØ¼®À» À§ÇÑ Àü»êÀ¯Ã¼¿ªÇÐ ÇÁ·Î±×·¥ÀÇ Àû¿ë
( Application of CFD Program for Analyzing the Hydrodynamic Characteristics of Baffled PAC Contactor )
¾ÈâÁø;¾È»óÁø; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öµµ°Ç¼³Ã³;ÃæºÏ´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â »ó¼ö¿ø¼ö ³» Á¶·ù ÀÌÃë¹Ì(taste and odor)¿¡ ´ëÀÀÇϱâ À§ÇÑ ¼ö´ÜÀ¸·Î µµÀԵǰí ÀÖ´Â °Ýº®½Ä ºÐ¸»È°¼ºÅº(PAC) Á¢ÃËÁ¶ÀÇ È¿°úÀûÀÎ ¼³°è¸¦ À§ÇØ Àü»êÀ¯Ã¼¿ªÇÐ ÇÁ·Î±×·¥ÀÎ FLOW-3D¸¦ µµÀÔÇÏ¿´´Ù. ÀÏÂ÷ÀûÀ¸·Î FLOW-3DÀÇ ¼º´ÉÀ» °ËÁõÇϱâ À§ÇÏ¿© ¿ë·® 288 ¸®ÅÍÀÇ PCA Á¢ÃËÁ¶¸¦ ´ë»óÀ¸·Î ¼öÇàµÈ ÃßÀûÀÚ½ÇÇæ °á°ú¿Í FLOW-3DÀÇ ¸ðÀǰá°ú¸¦ ºñ±³ÇÏ¿´´Ù. ¶ÇÇÑ, ÀÌ¹Ì ¼³°èµÈ PÁ¤¼öÀå PAC Á¢ÃËÁ¶¿¡ Àû¿ëÇÏ¿© È帧Ư¼ºÀ» ¿¹ÃøÇÏ¿´´Ù. ´Ù¾çÇÑ °Ýº® Á¶°Ç¿¡¼­ ¸ðÀÇµÈ FLOW-3D °á°ú´Â ½ÇÁ¦ ÃßÀûÀÚ½ÇÇè °á°ú¿Í ¾ÆÁÖ À¯»çÇÏ¿´´Ù. ÇÑÆí, ¼ö¸®ÇÐÀû ü·ù½Ã°£ÀÌ 20ºÐÀÎ PÁ¤¼öÀåÀÇ Á¢ÃËÁ¶¿¡ ÅõÀÔµÈ PAC ÀÔÀÚ°¡ ½Ã°£¿¡ µû¶ó ¾î¶»°Ô ºÐÆ÷ÇÏ´ÂÁö¸¦ FLOW-3D·Î ¸ðÀǼöÇàÇÑ ¹Ù¿¡ ÀÇÇϸé, ±âÁ¸ÀÇ PAC Á¢ÃËÁ¶¿¡¼­´Â ¸ðµç °Ýº®ÀÇ Èĸ鿡 Á¤Ã¼±¸¿ªÀÌ ¹ß»ýÇÏ¿´°í, ÀÌ Á¤Ã¼±¸¿ª¿¡´Â PAC ÀÔÀÚ°¡ °ÅÀÇ Á¸ÀçÇÏÁö ¾Ê¾Ò´Ù. ÀÌ¿Í °°Àº °Ýº® ÈĸéºÎÀÇ Á¤Ã¼¿µ¿ªÀº PAC ÀÔÀÚ°¡ ü·ùÇÏ´Â ½Ã°£À» °¨¼Ò½ÃÄÑ ÈíÂøÈ¿À²À» ÀúÇϽÃų ¼ö ÀÖ´Ù. ¹Ý¸é¿¡, PAC Á¢ÃËÁ¶ÀÇ È帧Ư¼ºÀ» °³¼±ÇϰíÀÚ °Ýº®ÀÇ Çü»óÀ» ¹Ì·ÎÇü(maze-type)À¸·Î º¯°æÇÑ °æ¿ì, PAC ÀÔÀÚ°¡ Á¢ÃËÁ¶ ³»¿¡ »ó´ëÀûÀ¸·Î ±ÕÀÏÇÏ°Ô ºÐÆ÷ÇÏ¿´À¸¸ç Á¤Ã¼¿µ¿ªµµ Å©°Ô °¨¼ÒÇÏ¿´´Ù. °á·ÐÀûÀ¸·Î FLOW-3D ¸ðÀÇ´Â Á¤¼öÀå¿¡¼­ »ç¿ëµÇ´Â ¼ö¸®±¸Á¶¹°ÀÇ È帧Ư¼º ÇØ¼®¿¡ À¯¿ëÇÑ ¼ö´ÜÀ¸·Î »ç¿ëµÉ °ÍÀ¸·Î ±â´ëµÈ´Ù.
For the efficient design of baffled Powdered activated carbon(PAC) contractor, which has been widely used in water treatment plant(WTP) against the algae-related odor problems, a CFD(computational fluid dynamics) program was applied. In order to verify the performance of FLOW-3D program, the previously reported results of tracer tests from a pilot-scale PAC contractor(working volume of 288 liters) were compared to those from FLOW 3D. The results of FLOW-3D simulation were very similar to those from tracer tests conducted with the Pilot-scale PAC contactor. On the other hand, the hydrodynamic characteristics of baffled contractor in the P-WTP were simulated by using FLOW-3D. Simulation results on the distribution of PAC particles showed that there are some stagnant parts in the back side of baffles in which PAC Particles are not present. These stagnant parts might decrease the adsorption capacity of PAC particles. When the baffles were changed to maze-type intra-basin baffling, PAC particles were evenly distributed and the amount of stagnant parts reduced. In conclusion, it is anticipated that FLOW-3D simulation could be a viab1e tool for analyzing the hydrodynamic characteristics of structures used in drinking water treatment plant
 
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¸ðÀǼöÇà;baffled PAC contactor;hydrodynamic characteristics;CFD(computational fluid dynamics);Simulation;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.35, no.2, 2002³â, pp.221-229
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921012016)
¾ð¾î : Çѱ¹¾î
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