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The unit of heat transfer co-efficient is_________________?

August 24, 2021March 2, 2019 by admin

The unit of heat transfer co-efficient is_________________?

A. BTU/hr. ft2°F
B. BTU/hr. °F. ft
C. BTU/hr. °F
D. BTU/hr. ft

Categories Chemical Heat Transfer

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________________?

Natural convection is characterised by__________________?

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