6. Recirculation rate and population balance
6.1 Recirculation rate
The recirculation rate, often referred to as the SCR (Solid Circulating Rate), is one of the key factors in CFL operation. This factor only applies to CFLs where the solid phase circulates freely (coal combustion CFLs, for example). The solid phase recirculation flow rate is often much higher than the feed flow rate, and in situ measurement of this flow rate is very difficult, if not impossible, under industrial conditions. However, CFL solids retention varies significantly according to the circulation rate. It is therefore very important to be able to estimate it, even approximately. The recirculation rate (figure 12...
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Recirculation rate and population balance
Flow models
References
Conventions/Workshops
(non-exhaustive list)
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The most important meeting is the International Conference on Circulating Fluidized Beds (CFB).
This conference is held every two years.
The ninth edition took place from May 13 to 16, 2008 in Hamburg ( http://www.cfb9.org )....
Software
(non-exhaustive list)
The most commonly used calculation programs are :
ERGUN for the design of circulating fluidized beds ( http://www.utc.fr/ergun ).
CFBCAD for the design of circulating fluidized bed boilers ( http://www.greenfieldresearch.ca...
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