Forced circulation occurs when hydrostatic head prevents boiling at the heating surface.
2.
With regards to the design components within forced circulation evaporation systems, the heat exchangers can vary.
3.
The forced circulation boiler begins the same as a natural circulation boiler, at the feed water pump.
4.
The upper section of the gallery space is also used as a duct, moving of air under forced circulation.
5.
In order to avoid this, forced circulation can be used by inserting a pump to increase pressure and circulation.
6.
What makes the forced circulation boiler different is its use of a secondary pump that circulates water through the boiler.
7.
Plate Forced Circulation Evaporators utilize a centrifugal pump which forces liquid to circulate through the plate structures and heat exchanger.
8.
There are several other processes that require the use of forced circulation evaporators, which work particularly well as crystallising evaporators.
9.
Forced Circulation Evaporators have high velocity liquid velocity and therefore a high turbulence this ergo equates to high heat transfer coefficients.
10.
Forced Circulation Evaporators are however versatile in their application and can be used in a wide variety of applications ( see applications ).
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