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...

Engineering Questions • Key equations for Process Engineers • Solved Sample Problems
## NPSH Calculations

December 15, 2018

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...

Key equations for Process Engineers • Process Control • Process Design
## Advanced control valve sizing guidelines

October 15, 2016

When sizing the control valve, caution needs to be taken for covering all possible scenarios and sometimes need to ensure some of the non-idealities like...

Key equations for Process Engineers • Process Control • Process Design
## Guidelines for control valve sizing calculation

October 15, 2016

Information required for sizing control valve is as follows

Inlet pressure all possible cases

Outlet pressure (or pressure drop) all possible cases

Inlet...

Key equations for Process Engineers • Process Control • Process Design
## Detailed theory for control valve sizing

October 15, 2016

Control valve sizing is relatively easy. The available information plays important role and that is why control valve sizing is done differently for different...

Key equations for Process Engineers • Process Design
## Important Equations for Process Design

February 12, 2012

Important equations for process design engineers for - mass balancing, pressure drop calculations as well as for design of process equipment and...

Steam Enthalpy

Put is simply, enthalpy...

Key equations for Process Engineers • Process Equipments
## Compressor Power and Efficiency Equations

November 2, 2011

This page lists equations frequently used in compressor power and efficiency calculations along with their description and significance.

Gas compression can...

Key equations for Process Engineers • Operation & Maintenance • Process Equipments
## Reliability coefficient for pumps

October 30, 2011

Pump Reliability Coefficient - Definition

The symbol for reliability coefficient is letter 'r'. A pump reliability coefficient value of 0.00 means absence of...

Heat Transfer • Key equations for Process Engineers
## Energy balance calculation for heat exchanger

October 17, 2011

Energy balance calculation is often done for designing a heat exchanger to determine operating parameters for hot and cold fluids such as - inlet / outlet...

Heat Transfer • Key equations for Process Engineers • Process Design • Solved Sample Problems
## Calculation of overall heat transfer coefficient

October 16, 2011

Problem Statement

Determine the overall heat transfer coefficient 'U' for heat transfer occurring from superheated steam in a steel pipe to atmosphere, with...

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

October 15, 2011

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

October 15, 2011

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...

**Sign up for free** if you are not a member already.

Advertise directly with us. Get links to your website. **Reach out to our reader base of engineering professionals.**
Email - admin@enggcyclopedia.com