Efficiency decrease calculation
Efficiency decrease calculation
(OP)
I am experiencing a problem with one of our process boilers, and I'd like to calculate how our efficiency is being reduced. Upon inspection of the boiler, we found a high level of ash, covering all tubes and walls with a thin layer. Analysis of the ash was high in aluminum and silica, seeminly confirming our suspicions of FCCU catalyst carryover in our purchased #6 fuel oil. How can I use this info to work towards an efficiency calculation - hence a dollar amount that this #6 oil is costing us. Thanks for all help.





RE: Efficiency decrease calculation
Based on this info, you can work out your efficiency calc from heat generated by burners (flux)over head absorbed by the fluid in the tubes.
Cheers
RE: Efficiency decrease calculation
RE: Efficiency decrease calculation
You will need:
- Fuel consumption over a period of time
- Stack temperatures over that period of time
- Steam production, and pressures (massflow) over the time period
- Sootblower steam usage (iff you can seperate this out)
More info here:
http://www.cleaver-brooks.com/Service15.html
Your calculation should be in $/lb of steam produced based on these measured values comparing one period/condition against another.
My opinion only....
Gimmie a star....
_MJC