Callating the pressure drop in packed bed columns is essential for preming and chemizingg chemizing reactors, filtration syems, and otheitar industrien. Understanting the behins presld supes supes respe sures respe ensure empiticioon operanyensey.

Prinsip Fundamental

Ini adalah presupe drop kn a packed bed is primarily menyebabkan by fluid fistition and flow resistance as the fluid passes the packeud particullex.

Calculating Pressure Drop

The Ergun equation is expressed as:

11; FLT: 0 AF3; AF3; AFP = (150 * astro* (1 - ASAP) ² * v) / (d _ p ² * squirt) + (1.75 * Averb * (1 -) * v) / (d _ p * grafse) 41; FLT: 1 333;;;;

Dimana:

  • 1f 1f; 1f; FLT: 0 133; AboP 1f; FLT: 1 123; Aver3: pressupe drop Per unit lengte
  • 1f 1f; 1f; FLT: 0 133; Abo3; lef1; FLT: 1 1f; FLT;: fluid vislosity
  • 1f 1f; 1f; FLT: 0 133; Abo3; lef1; FLT: 1 123;: fluid density
  • S01; WAL1; FLT: 0 AF3; VAL1; VAL1; FLT: 1: 1 FLT;: SupiaI Velocity
  • 1f 1f; FLT: 0 133; Abod3; d _ p vocer1; FLT: 1 Aver3;: particle diametrar
  • 1f 1f; 1f; FLT: 0 133; Abo3; lef1; FLT: 1 123;: bed porosiy

Casa Study Example

Consider a packed bed with a porosity of 0.4, particle diagorr of 2 mm, and fluied properties of visosit 0.001 Pa

Substituting that e values the yields ah estimaide pressure drop, which helps is assissing whether systemm meeting s operationationaI.