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  Pressure Drop of straight pipe
  ±Û¾´ÀÌ : ÃÖ°í°ü¸®ÀÚ   °íÀ¯ID : admin     ³¯Â¥ : 07-01-29 22:44     Á¶È¸ : 9468    

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           Pressure Drop of straight pipe
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¡Ý Horizontal & straight pipe (Gas, Liquid)

Darcy Formula

¡âp = (625.3 * f L W^2) / (d^5 ¥ñ)

 Liquid flow¿¡ ´ëÇؼ­´Â ¾ðÁ¦µçÁö Àû¿ëÀÌ °¡´ÉÇϳª, ¹è°ü³» À¯¼ÓÀº ÀûÁ¤ÇÑÁö °í·ÁÇÒ °Í.
 p1°ú p2ÀÇ Â÷ÀÌ°¡ 10% ÀÌÇÏÀÎ °æ¿ì Inlet & Outlet ¾î´ÀÂÊÀÇ ¥ñ»ç¿ëÇÏ¿©µµ ¹«¹æ.
 p1°ú p2ÀÇ Â÷ÀÌ°¡ 10~40% ÀÎ °æ¿ì Inlet & Outlet Æò±ÕÁ¶°ÇÇÏÀÇ  ¥ñ»ç¿ëÇÒ °Í.
 p1°ú p2ÀÇ Â÷ÀÌ°¡ 40% ÀÌ»óÀÎ °æ¿ì Empirical Formula of flow½ÄÀ» »ç¿ë.

¡âp : pressure [bar_g]
  f : friction factor [ ]
  L : length [m]
  D : internal diameter [m]
  g : accleration gravity 9.8 [m/sec^2]
  W : flow rate [kg/hr]
  d : internal diameter [mm]
 ¥ñ : weight density [kg/m3]

 * laminar flow (Re < 2,000)

 ¡âp = 113.2 (¥ìL W) / (d^4 ¥ñ)


¡Ý Vertical pipe (Gas Only)

¡âp = 1.293 * (Sg - 1) * H / 10200

¡âp : pressure drop [bar_g]
 Sg : specific gravity of gas [ ]
  H : Height [m]

¡Ý Vertical pipe (Liquid Only)

¡âp = (H *  ¥ñ) / 10200

¡âp : pressure drop [bar_g]
  H : Height [m]
 ¥ñ : weight density [kg/m3]
[ÀÌ °Ô½Ã¹°Àº ¿î¿µÀÚ´Ô¿¡ ÀÇÇØ 2008-03-22 00:48:37 À¯Ã¼¿ªÇп¡¼­ À̵¿ µÊ]

   

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