Category - Solved Sample Problems

MMSCFD conversion calculation

Million Standard Cubic Feet per Day (MMSCFD)
MMSCFD is a unit for gas flow rates expressed at standard temperature and pressure conditions. Volumetric flow of...

Calculation of NM3/hr and SM3/hr gas flow

Sample Problem Statement
What is the NM3/hr (normal cubic meter per hour) and SM3/hr (standard cubic meter per hour) flowrate corresponding to 100m3/hr of...

Venting Calculation – Outbreathing

Venting Calculation for Outbreathing
Process tanks and vessels operating at low or atmospheric pressures are designed to handle low pressures and large...

Venting Calculations – Inbreathing

Venting Calculation for Inbreathing
Process tanks and vessels operating at low or atmospheric pressures are designed to handle low pressures and large...

Pressure Relief Valve Sizing Calculations – Steam Service

Sample Problem Statement
Design a pressure relief valve for the following service.
Protected equipment : Reboiler
Relief service : Steam
Reason for relief :...

Pressure Relief Valve Sizing Calculations – Subcritical Gas Flow Service

Sample Problem Statement
Design a pressure relief valve for the following service.
Protected equipment : Separator vessel
Relief service : Fuel Gas
Reason for...

Pressure Relief Valve Sizing Calculations – Critical Gas Flow Service

Sample Problem Statement
Design a pressure relief valve for the following service.
Protected equipment : Separator vessel
Relief service : Fuel Gas
Reason for...

Pressure Relief Valve Sizing Calculations – Blocked Liquid Discharge

Sample Problem Statement
Design a  pressure relief valve for the following service.
Protected equipment : Separator vessel
Relief service : Water
Reason for...

Use of heat exchanger bypass for design for different operating cases

The following example demonstrates how heat exchanger bypass can be effectively used for temperature control for a heat exchanger.
Question
Design a heat...

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...