# Category - Solved Sample Problems

## Sample Problem – Heat Transfer by Conduction across a composite wall

Problem Statement
Determine the overall heat transfer by conduction per unit area occurring across a furnace wall made of fire clay. Furnace wall has a...

## Calculation of overall heat transfer coefficient

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

## 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...

## 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...

## 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 =...

## Sample Problem – Insulation thickness calculation for a pipe

Sample Problem Statement
Calculate insulation thickness (minimum value) required for a pipe carrying steam at 1800C. The pipe size is 8" and the maximum...

## Sample Problem – Heat transfer by conduction across a furnace wall

Sample Problem Statement
Determine the rate of heat transfer by conduction per unit area, by means of conduction for a furnace wall made of fire clay. Furnace...

## Tutorial – Heat exchanger shell side pressure drop calculation

Heat exchanger shell side pressure drop calculation
Calculate the shell side pressure drop for the following heat exchanger specification,
Process fluid =...

## Tutorial – Heat exchanger tube side pressure drop calculation

Heat exchanger tube side pressure drop calculation
Calculate the tube side pressure drop for the following heat exchanger specification,
Process fluid =...

## Sample Problem – Pump power calculations

Problem Statement
Estimate the shaft power and motor power requirement to pump 200,000 kg/hr of water available at 250C and  atmospheric pressure from a...

## Sample Problem – NPSHA calculation for pumps

Available NPSH calculation (NPSHa) is important for deciding the line sizes on suction side of a centrifugal pump. Selecting a large enough line size is...

## Sample Problem – Logarithmic Mean Temperature Difference (LMTD) calculation

Sample Problem Statement
Calculate log mean temperature difference for the following shell and tube heat exchanger for two possible arrangements (i)...