Pump Models - Fluid Transport Equipment

• Pump
  • Process Description
  • Key Equations
  • Process Parameters
  • Industrial Example
  • Results
  • Process Behavior
  • Sensitivity Analysis
  • References
• CentrifugalPump
  • Process Description
  • Key Equations
  • Process Parameters
  • Industrial Example
  • Results
  • Process Behavior
  • Performance Analysis
  • References
• PositiveDisplacementPump
  • Process Description
  • Key Equations
  • Process Parameters
  • Industrial Example
  • Results
  • Process Behavior
  • Application Analysis
  • References

Process Models Overview

Pump: Generic liquid pump model for constant pressure rise applications, suitable for process circulation loops, utility services, and general fluid transport. Provides fundamental hydraulic behavior with first-order dynamic response.

CentrifugalPump: Dynamic pump with quadratic head-flow characteristics following pump affinity laws. Ideal for variable flow applications in water treatment, chemical processing, and HVAC systems where system curves determine operating points.

PositiveDisplacementPump: Constant flow pump for precise metering and high-pressure applications. Essential for chemical injection systems, hydraulic power units, and viscous fluid handling where flow accuracy is critical.

Unit Operations Context

These pump models support fundamental unit operations in chemical engineering:

Fluid Mechanics: Models incorporate Bernoulli’s equation, friction losses, and momentum transfer principles. Pump curves represent energy addition to fluid streams.

Mass Transfer: Circulation pumps in absorption, distillation, and extraction processes. Flow rate control affects mass transfer coefficients and column efficiency.

Heat Transfer: Cooling water circulation, heat exchanger feed pumps, and thermal fluid loops. Pump selection affects heat transfer rates and system efficiency.

Reaction Engineering: Reactor feed pumps, circulation systems, and product transfer. Flow control impacts residence time distribution and reaction kinetics.

Process Control: Pump models provide process dynamics for control system design. Variable speed drives enable flow control in automated process operations.