Flow Through Helical Coil

centrifugal force acting upon the various elements of fluid moving with different velocities causes secondary circulation. Secondary flow results in higher heat transfer characteristics. Further, secondary flow stabilizes the laminar flow leading to a higher critical Reynolds number for transition from laminar to turbulent flow.  

EXPERIMENTATION:                          

To determine the critical Reynolds number of a fluid flowing through the coil.      

To determine the friction factor for flow of water through helical coil.                

To compare Pressure drop in helical coil with that in a straight pipe of same length, inside diameter and surface roughness.  

UTILITIES REQUIRED :                    

Electricity 500 watts, 220 V, 1 Phase.                   

Floor Area 1 m x 2 m.  

TECHNICAL DETAILS :                             

Helical Coil  : Material Stainless Steel Dia – 12” No. of Turns  : 15 Coil Tube Dia  : OD 21mm, ID 17mm (Approx.)                           

Sump Tank   : Material Stainless Steel/PVC, Capacity 50 Ltrs.                        

Water Circulation  : FHP Pump, Crompton/Sharp make.                        

Manometer   : 2 Nos.                           

Flow measurement  : Rotameter.

Piping    : GI and PVC                           

Control panel comprising of:  Standard make on off switch, Mains Indicator etc.                           

Instruction Manual  : An ENGLISH instruction manual will be provided along with the Apparatus                           

The whole set-up is well designed and arranged in a good quality painted structure.  

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