Junobo Hotels Interview Questions and Answers

Heat exchanger is a device used to transfer heat between two or more fluids.

• Heat exchangers are used in various industries such as chemical, petrochemical, power generation, and HVAC.

• They can be classified into different types such as shell and tube, plate and frame, and spiral.

• The fluids can be in direct contact or separated by a wall depending on the application.

• Heat exchangers can be designed for different purposes such as heating, cooling, condensing, and evaporating.

• Effi...read more

Pipeline size calculation involves determining the diameter of the pipeline based on the flow rate and velocity of the fluid.

• Pipeline size is calculated based on the required flow rate and the velocity of the fluid.

• The velocity of the fluid is determined based on the type of fluid and the purpose of the pipeline.

• Assumed velocities for different cases are based on industry standards and regulations.

• For example, the assumed velocity for a water pipeline is typically between 1.5...read more

LMTD is a temperature difference used in heat exchanger design. Heat load calculations determine the amount of heat transferred.

• LMTD stands for Logarithmic Mean Temperature Difference and is used to calculate the temperature difference between two fluids in a heat exchanger.

• Heat load calculations are used to determine the amount of heat transferred in a system.

• Factors such as flow rate, temperature, and specific heat capacity are used in heat load calculations.

• LMTD and heat l...read more

Units are used in calculations to ensure consistency and accuracy.

• Units provide a standard of measurement for calculations.

• They ensure consistency and accuracy in calculations.

• Units can be converted to other units using conversion factors.

• Examples of units include meters, seconds, kilograms, and moles.

Tube layout of heat exchanger refers to the arrangement of tubes within the heat exchanger to optimize heat transfer.

• Tube layout should be designed to maximize heat transfer efficiency

• Consider factors such as fluid flow, pressure drop, and fouling when determining tube layout

• Common tube layouts include straight, U-shaped, and helical configurations

• Computer simulations can help optimize tube layout for specific heat exchanger designs