Question

In experiment of convection heat transfer, water inside the pipe can be convectively heated with higher rate by

• A. Increasing thermal conductivity of container
• B. increasing heat intensity
• C. Using external force to increase the circulation speed
• D. all of the above

Answer 1

The correct option is D all of the above

• By increasing the thermal conductivity of container; we can say that container will absorb more heat and transfer more heat to water.
• By increasing heat intensity means more heat energy is transferred or given per unit area per unit time; more the heat will be given, more the convection will take place at higher rate.
• Using external force to increase the circulation speed; i.e. forced convection. And since we know that forced convection is more efficient than normal convection. So, convection will take place at relatively higher rate.