Steady state convective heat transfer on either side of a heat exchanger (hot or cold side) can be expressed with following figure and equation,

The steady...

Heat Transfer • Key equations for Process Engineers • Process Design
## Heat transfer coefficients for heat exchangers

Steady state convective heat transfer on either side of a heat exchanger (hot or cold side) can be expressed with following figure and equation,

The steady...

Heat Transfer • Key equations for Process Engineers • Process Design
## Heat Transfer – Convection of Heat

Heat transfer by convection generally occurs between a fluid and a solid surface and convective heat transfer is accompanied by motion of the fluid. This is...

Key equations for Process Engineers • Phase separation • Process Equipment • Solved Sample Problems
## Sample Problem – Gas liquid separator sizing with demsiter pad

Problem Statement

Perform separator sizing calculations for a vertical gas-liquid separator used for separation of fuel gas bubbles entrained in water...

Key equations for Process Engineers • Process Design • Process Equipment • Solved Sample Problems
## Sample Problem – Vertical Knock Out Drum Sizing Calculations

Sample Problem Statement

Design a vertical gas-liquid separator or a Knock Out Drum for separation of liquid droplets entrained in fuel gas flow. The liquid in...

Key equations for Process Engineers • Physical Properties • Solved Sample Problems
## Air Compressibility Factor Calculation – Sample Problem

Problem Statement

Calculate the compressibility factor (Z factor) for air at the following temperature and pressure condition -

P = 15 barg

T =...

Heat Transfer • Key equations for Process Engineers • Process Design
## Heat Transfer – Conduction of Heat

Conduction of heat in a solid wall is expressed using Fourier's equation for heat conduction,

T : Temperature at a point in wall

θ : Time

k : Thermal...

Key equations for Process Engineers • Process Design
## Dynamic or Absolute viscosity and Kinematic viscosity

Fluid viscosity is an important fluid property in fluid dynamics. Fluid viscosity represents the frictional resistance within the fluid to shearing force...

Flow coefficient of a device represents the ease for a fluid flow to pass through the device. High flow coefficient of a device such as restriction orifice or...

Incompressible Flow

For incompressible fluids, Bernoulli's equations simply states that the combined kinetic energy, gravitational static energy and pressure...

Key equations for Process Engineers • Process Design • Process Equipment
## Net Positive Suction Head definition – NPSH for pumps

NPSH definition

Net Positive Suction Head or NPSH for pumps can be defined as the difference between liquid pressure at pump suction and liquid vapor pressure...

Definition

Compressibility factor of gases is a thermodynamic property which is used to modify the ideal gas equation for real gases.

For Ideal gases, Ideal...

A system can reach from state A to state B following different paths. These paths followed by a system while undergoing a change of state, are termed as...

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