Archimedes Screw Generator Models

Three models for different operating environments,
each with differing advantages and disadvantages.

Model 1

Cast In Place

In this design the trough must be cast in place in concrete and all components must be aligned upon installation (lower bearing/support, upper bearing, trough gap). Because the trough is cast in place in concrete, a stainless steal trough is used.

Model 2

Closed Complete

In this design the trough is a closed tube. The screw, trough, bearings (upper and lower), gearbox and generator are all installed and pre-aligned in a self supporting structure.

Model 3

Open Complete

In this design the open top trough is roll formed steel supported by an external frame.
Just like the Closed Complete Model the screw, trough, bearings(upper and lower), gearbox and generator are all shipped as a single pre-aligned unit from the factory
Best For:
  • Freezing outdoor environment.
Best For:
  • Non-freezing outdoor environments, generally for lower flow sites.
Best For:
  • Non-freezing outdoor environments, generally for higher flow sites.
Advantages:
  • Operates in freezing environments as part of an enclosed installation.
Advantages:
  • Most Economical of all models because structural rigidity provided by tube.
  • Simple and quick installation because only need upper and lower supports.
Advantages:
  • 2nd most economical model.
  • Simple and quick installation because only need upper and lower supports. This can mean much simpler concrete site work.
Disadvantages:
  • Alignment needed of components upon installation.
  • More complex installation due to increased site work and casting in place.
Disadvantages:
  • Limited to available pipe and tubing sizes that are economical.
  • If an item were to get lodged in screw within the pipe, it would be difficult to remove it.
  • Not intended for freezing environments
  • Not as visually attractive for viewing.
Disadvantages:
  • Not intended for freezing environments.
  • Necessary to enclose to some degree for safety reasons.