helix tube

The once-through steam generator with double-side heat transfer component was presented in this paper. And the component is composed of straight tube outside and helix tube inside.

In the ultraviolet water body sterilizer there is helix ultraviolet tube and ultrasonic transducer, improving the sterilization efficiency.

Experimental investigation on rising film formation process of binary solution on the fluted helix surface of a horizontal tube was carried out.