Chemical Engineering - Heat Transfer
Exercise : Heat Transfer - Section 5
21.
The equivalent diameter for the annulus of a double pipe heat exchanger, whose inner pipe has fins on the outside is __________ compared to the same size pipes without fins.
22.
Natural convection is characterised by
23.
Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is
24.
Thickness of thermal boundary layer is more compared to that of hydrodynamic boundary layer, when the value of Prandtl number is
25.
The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe )
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