Why ice cubes melt faster than a big block of ice?

There is very easy experiment to understand the concept of heat transfer to a solid body. Take a small ice...

# Category - Key equations for Process Engineers

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...

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...

Information required for sizing control valve is as follows

Inlet pressure all possible cases

Outlet pressure (or pressure drop) all possible cases

Inlet...

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

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

Besides steam pressure and steam temperature, other important steam key properties include as a minimum the following:

Steam Enthalpy

Put is simply, enthalpy...

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

Gas compression can...

Pump Reliability Coefficient - Definition

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

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

Problem Statement

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

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...