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A little fun with boiler fans

A little fun with boiler fans

A little fun with boiler fans

(OP)
Gentlemen,

I am working on a power project in South America that involves three sub-critical boilers.

The specification for the fans says that the test block conditions should be determined with the boiler operating at 100%BMCR with the following margins:

                          FDF    IDF    PAF
% volume                  15     15     20
% static pressure         32     32     25

The specification also says that with one of each boiler type in service in service the boiler should be able to operate at 60%BMCR.

Now the question, do we have 2x50% fans or 2x60% fans.

Regards,

athomas236

RE: A little fun with boiler fans

Usually 2 x 60% fans.

RE: A little fun with boiler fans

I would say they are 2x50% but must be capable of runout to 60% since the test conditions are based on 100% (2x50%) operation.

I2I

RE: A little fun with boiler fans

(OP)
Thanks for the replies guys.

I am inclined to agree with I2I for the reasons he has given.

My client, however, has leganti's opinion.

Thanks again

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