How to calculate superheated steam and saturated fuel consumption
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I recently worked on a project in which an alcohol plant used a biomass gasifier to supply fuel to a 25-ton boiler; the steam produced had a pressure of 2.5 MPa and a temperature of 420 degrees. A backpressure generator set with a capacity of 1000 KWH was used to generate electricity, which was then utilized to produce steam at 0.25 MPa and 260 degrees. I would like to ask: First, how is the fuel consumption calculated for producing steam at 2.5 MPa and 420 degrees Celsius, as compared to producing steam at 0.25 MPa and 260 degrees Celsius? ； II. If the generator set is damaged, should the excess superheated steam produced by the boiler be passed through a desuperheater before being used in production? ；
The calorific value of the fuel is unclear. A 25T/h furnace has an output of around 17.5 MW; checking forums reveals many similar questions. Superheated steam can be used for production via a desuperheater.