Principle:

This radiator works on the same principle of heat transfer but instead of straight fluid flow line helical path is provided so that heat transfer rate gates increases considerably.

Concept :

The heat transfer by convection Q is given by
Q= hA(∂T) w/m2
Where Q- heat transfer
A-surface area
∂T-change in temperature

Hence in order to increase heat transfer rate we must increase the contact area. In the given design due to the large surface area available for reduction of heat, the rate of heat transfer gets increases. Also due to compact design the circulation of air inside the design takes place, i.e. at moderate speed of vehicle also effective cooling of fluid takes place by surrounded air.

Advantages :
>Fast and effective cooling of fluid (water) inside the radiator tubes due to large surface area.
>The problems like overheating of engine, evaporation of coolant can be avoided.
>Due to the helical design air gets circulated at all corners of pipes so that cooling needs less amount of air.

About the design :
The construction of assembly is as shown in design. In the provided design,
Fig.1- Isometric view of radiator.
Fig.2- Front view without casing.
Fig.3- Side view without casing.