Curioustab

Home » Chemical Engineering » Heat Transfer

In a heat exchanger, floating head is provided to

facilitate cleaning of the exchanger.
increase the heat transfer area.
relieve stresses caused by thermal expansion.
increase log mean temperature gradient.

Correct Answer: relieve stresses caused by thermal expansion.

← Previous Question Next Question→

More Questions from Heat Transfer

When vaporisation takes place directly at the heating surface, it is called
The steam ejector is used to
In the equation Q = UAΔt; Δt is
A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m2.°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be
In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms-2. Neglecting the heat capacity of agitator, the temperature of water (in °C) is
Fouling factor
With increase in temperature, the thermal conductivity of non-metallic amorphous solids
Which of the following is concerned with both heat and mass transfer?
A process stream of dilute aqueous solution flowing at the rate of10 Kg.s-1 is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s-1. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is
With increase in porosity, the thermal conductivity of a solid substance

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion