Learning
Start Here
A) Outline
B) Basics
C) Generator
D) Prime Mover
  1) What's a Prime Mover?
  2) What's an Engine?
  3) What's a Turbine?
  4) What's a Gas Turbine?
  5) What's a Steam Turbine?
  6a) What's a Boiler?
  b) Simple Power Boiler
  c) Cogen Boiler
  7) What's a Water Turbine?
  8) What's a Wind Turbine?
  9) Recap: Prime
E) Fuel
F) Distribution
Finish Here

 
 
 
D6c) What's a Boiler? Cogeneration Boiler

Basically, we’d add a second set of boiler tubes to recover some of the remaining energy.

Cogen Boiler Schematic
Power Boiler
Cogeneration
1. The fuel goes in (in this case, it’s natural gas).
2. The fuel is burned.
3. The heat passes over a series of boiler tubes or coils filled with water.
4. The water boils into steam.
5. The steam passes through a steam turbine, causing the turbine to spin.
6. The spinning turbine is attached to a generator, which also spins.
7. The generator creates electricity.
8. The left-over steam is returned to the boiler (or it can be passed through a cooling tower to turn it back into water or ‘cold’ steam).

A) A second set of low-temperature water-tubes collect some of the remaining heat.
B) Water is heated by this low-grade energy and sent to the factory
C) The factory uses the heat for some process, space heating etc.
D) Cold water returns to the boiler for more heat recovery.

Ok, so a boiler’s not that complicated. Let’s take a look at how a Water Turbine works.
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