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: happy0627
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: 09-05-03 16:32
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25KG ¿îÀüÇÏ°í ÀÖ´Â Column (Fixed Tray column) ÀÇ °øž ¼Óµµ¸¦ ¾î¶»°Ô ±¸ÇÏ´ÂÁö¿ä..¤Ð-¤Ì
°øž¼ÓµµÀÇ °³³ä À» ¾Æ¹«¸® ã¾ÆºÁµµ ¾ø³×¿ä ..¤Ì¤Ì
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Stefano
09-05-03 19:26
(1) °øž¼Óµµ = Superficial (Column or Reactor) Velocity [=] m/s, m/min, m/h,...
°øž¼Óµµ´Â ¹®ÀÚ±×´ë·Î ž¼Ó¿¡ ¾Æ¹«·± ÃæÀü¹°ÀÌ µé¾îÀÖÁö ¾Ê´Ù°í º¸°í ¸¶Ä¡ ºó Pipe¸¦ Åë°úÇÑ´Ù°í º¸´Â ¼ÓµµÀÔ´Ï´Ù. µû¶ó¼ À¯·®À» žÀÇ ´Ü¸éÀûÀ¸·Î ³ª´©¸é ¹Ù·Î °øž¼Óµµ°¡ µË´Ï´Ù.
(Superficial Velocity) = (Volume Flow Rate)/(System Cross-sectional Area assumed as Vacant State)
(2) °ø°£¼Óµµ = Space Velocity = Volume Flow/System Volume [=] 1/s, 1/min, 1/h, ...
°ø°£¼Óµµ´Â À¯·®À» (ÃæÀüµÇÁö ¾ÊÀº °øžÀ̶ó°í º») ½Ã½ºÅÛ ºÎÇÇ·Î ³ª´« °ªÀÔ´Ï´Ù. ´ÜÀ§½Ã°£¿¡ ½Ã½ºÅÛ ºÎÇÇ°¡ ¸îȸ³ª ȯ±â(¶Ç´Â ȯ¾×)µÇ´Â°¡¸¦ ³ªÅ¸³»Áö¿ä. ¿îÀü ¿Âµµ³ª ¾Ð·Â¿¡ µû¶ó ´Þ¶óÁö´Âµ¥ ÈçÈ÷ Ç¥ÁØ»óÅ °ø°£¼Óµµ·Î ³ªÅ¸³»±âµµ ÇÕ´Ï´Ù.
(Space Velocity) = (Volume Flow Rate)/(System Volume assumed as Vacant State)
(1) °øž¼Óµµ = Superficial (Column or Reactor) Velocity [=] m/s, m/min, m/h,... °øž¼Óµµ´Â ¹®ÀÚ±×´ë·Î ž¼Ó¿¡ ¾Æ¹«·± ÃæÀü¹°ÀÌ µé¾îÀÖÁö ¾Ê´Ù°í º¸°í ¸¶Ä¡ ºó Pipe¸¦ Åë°úÇÑ´Ù°í º¸´Â ¼ÓµµÀÔ´Ï´Ù. µû¶ó¼ À¯·®À» žÀÇ ´Ü¸éÀûÀ¸·Î ³ª´©¸é ¹Ù·Î °øž¼Óµµ°¡ µË´Ï´Ù. (Superficial Velocity) = (Volume Flow Rate)/(System Cross-sectional Area assumed as Vacant State) (2) °ø°£¼Óµµ = Space Velocity = Volume Flow/System Volume [=] 1/s, 1/min, 1/h, ... °ø°£¼Óµµ´Â À¯·®À» (ÃæÀüµÇÁö ¾ÊÀº °øžÀ̶ó°í º») ½Ã½ºÅÛ ºÎÇÇ·Î ³ª´« °ªÀÔ´Ï´Ù. ´ÜÀ§½Ã°£¿¡ ½Ã½ºÅÛ ºÎÇÇ°¡ ¸îȸ³ª ȯ±â(¶Ç´Â ȯ¾×)µÇ´Â°¡¸¦ ³ªÅ¸³»Áö¿ä. ¿îÀü ¿Âµµ³ª ¾Ð·Â¿¡ µû¶ó ´Þ¶óÁö´Âµ¥ ÈçÈ÷ Ç¥ÁØ»óÅ °ø°£¼Óµµ·Î ³ªÅ¸³»±âµµ ÇÕ´Ï´Ù. (Space Velocity) = (Volume Flow Rate)/(System Volume assumed as Vacant State)
±â¸ÅÁß
happy0627
09-05-04 09:15
°¨»çÇÕ´Ï´Ù ^^
±×·³ °øž¼Óµµ´Â ¾Ð·Â°ú ÀüÇô »ó°üÀÌ ¾ø³ª¿ä?
±×¸®°í ¸»¾¸ÇϽô À¯·®À̶ó´Â °ÍÀÌ Áú·®À¯·®À» ¸»¾¸ÇϽô °ÇÁö, ºÎÇÇ À¯·®À» ¸»¾¸ÇϽô °ÍÀΰ¡¿ä? ^^
¿À´Ãµµ ÇູÀÌ Ã游ÇÑ ÇÏ·ç°¡ µÇ¼¼¿ä
°¨»çÇÕ´Ï´Ù ^^ ±×·³ °øž¼Óµµ´Â ¾Ð·Â°ú ÀüÇô »ó°üÀÌ ¾ø³ª¿ä? ±×¸®°í ¸»¾¸ÇϽô À¯·®À̶ó´Â °ÍÀÌ Áú·®À¯·®À» ¸»¾¸ÇϽô °ÇÁö, ºÎÇÇ À¯·®À» ¸»¾¸ÇϽô °ÍÀΰ¡¿ä? ^^ ¿À´Ãµµ ÇູÀÌ Ã游ÇÑ ÇÏ·ç°¡ µÇ¼¼¿ä
Stefano
09-05-04 11:24
(1) °øž¼Óµµ¸¦ ÇØ´ç¿Âµµ¿Í ¾Ð·Â»óÅ¿¡¼ÀÇ °øžÀ¯¼ÓÀ¸·Î ³ªÅ¸³¾ ¼öµµ ÀÖ°í Ç¥ÁØ»óÅ¿¡¼ÀÇ °øžÀ¯¼ÓÀ¸·Î ³ªÅ¸³¾ ¼öµµ ÀÖ½À´Ï´Ù. ÀÌ ¸»Àº ¾Ð·Â°ú ¿Âµµ¿¡ °ü°èµÈ´Ù´Â ÀÇ¹Ì ÀÔ´Ï´Ù.
°øž¼Óµµ(Superficial Velocity)¸¦ »ç¿ëÇÏ´Â ÀÌÀ¯´Â ÃæÀüž¿¡¼ ÃæÀü¹°ÀÇ Á¾·ù¿¡ µû¶ó ÃæÀü»óÅ°¡ Á¦°¢±â ´Ù¸¦ °æ¿ì°¡ ÀÖ°í À¯¼Ó¿¡ µû¶ó ÃæÀü¹°ÀÇ °ø±Ø·ü(Porosity, ÀüüºÎÇÇ Áß °ø°£ºñÀ²)ÀÌ ´Þ¶óÁö´Â °æ¿ì°¡ Àֱ⠶§¹®ÀÌ À̸¦ ¸ðµÎ °í·ÁÇÏ¸é º¹ÀâÇϱ⠶§¹®¿¡ À̸¦ °£´ÜÈ÷ Çϱâ À§ÇÔÀÔ´Ï´Ù. ½ÇÁ¦ÀÇ À¯¼ÓÀº °ø±Ø·üÀ» ÀÌ¿ëÇؼ ±¸ÇÒ ¼ö ÀÖÁö¿ä.
(½ÇÁ¦ÀÇ ¼Óµµ, m/s) = (Superficial Velocity, m/s)/(Porosity of Packed Bed, -)
(2) Áú·®ÀÎ °æ¿ì¿¡´Â ±âÁشܸéÀ» Åë°úÇÏ´Â Áú·®À¸·Î ´ÜÀ§´Â kg/h ¿Í °°ÀÌ [Áú·®/½Ã°£]À¸·Î ³ªÅ¸³À´Ï´Ù.
´ÜÀ§Áú·®´ç Áú·®À¯·®Àº Mass Velocity¶ó°í ÇÕ´Ï´Ù.
(Mass Velocity, kg/h/m2)=(Mass Flow, kg/h)/(Cross-sectional Area, m2)
(1) °øž¼Óµµ¸¦ ÇØ´ç¿Âµµ¿Í ¾Ð·Â»óÅ¿¡¼ÀÇ °øžÀ¯¼ÓÀ¸·Î ³ªÅ¸³¾ ¼öµµ ÀÖ°í Ç¥ÁØ»óÅ¿¡¼ÀÇ °øžÀ¯¼ÓÀ¸·Î ³ªÅ¸³¾ ¼öµµ ÀÖ½À´Ï´Ù. ÀÌ ¸»Àº ¾Ð·Â°ú ¿Âµµ¿¡ °ü°èµÈ´Ù´Â ÀÇ¹Ì ÀÔ´Ï´Ù. °øž¼Óµµ(Superficial Velocity)¸¦ »ç¿ëÇÏ´Â ÀÌÀ¯´Â ÃæÀüž¿¡¼ ÃæÀü¹°ÀÇ Á¾·ù¿¡ µû¶ó ÃæÀü»óÅ°¡ Á¦°¢±â ´Ù¸¦ °æ¿ì°¡ ÀÖ°í À¯¼Ó¿¡ µû¶ó ÃæÀü¹°ÀÇ °ø±Ø·ü(Porosity, ÀüüºÎÇÇ Áß °ø°£ºñÀ²)ÀÌ ´Þ¶óÁö´Â °æ¿ì°¡ Àֱ⠶§¹®ÀÌ À̸¦ ¸ðµÎ °í·ÁÇÏ¸é º¹ÀâÇϱ⠶§¹®¿¡ À̸¦ °£´ÜÈ÷ Çϱâ À§ÇÔÀÔ´Ï´Ù. ½ÇÁ¦ÀÇ À¯¼ÓÀº °ø±Ø·üÀ» ÀÌ¿ëÇؼ ±¸ÇÒ ¼ö ÀÖÁö¿ä. (½ÇÁ¦ÀÇ ¼Óµµ, m/s) = (Superficial Velocity, m/s)/(Porosity of Packed Bed, -) (2) Áú·®ÀÎ °æ¿ì¿¡´Â ±âÁشܸéÀ» Åë°úÇÏ´Â Áú·®À¸·Î ´ÜÀ§´Â kg/h ¿Í °°ÀÌ [Áú·®/½Ã°£]À¸·Î ³ªÅ¸³À´Ï´Ù. ´ÜÀ§Áú·®´ç Áú·®À¯·®Àº Mass Velocity¶ó°í ÇÕ´Ï´Ù. (Mass Velocity, kg/h/m2)=(Mass Flow, kg/h)/(Cross-sectional Area, m2)
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