BIOFACT – Biomass Fuels Advisory Characterization Tool – is a recently developed fuel characterization tool which aims at rapidly detecting operational risks due to the use of biomass in energy plants. It is build to support engineers to have a better idea about non-conventional fuels and buyers to safely expand the fuels portfolio.
It does not substitute CFD analyses and pilot experimental testing. It is built to minimize the use of such time- and budget-consuming methods to the most interesting fuels. After filling in the fuel data (biofact.eu/analyze), it is possible to download a report with the results. Here a case study for corn cobs.
In the report, four sections are present: the Input section (with the data submitted), the BIOFACT-C (Combustion) section, the BIOFACT-T (Technology coupling) section and a short wrap up.
The BIOFACT-C section is a quick assessment of operational risks during combustion of the specific fuel, namely the risks of/for: fouling, agglomeration and slagging, corrosion (high temperature), HCl emissions, particulate matter (PM10), SOx emissions, fuel NOx emissions, handling and storage. Each risk is computed with models based on the input data. As a complementary information, a suggestion of
The BIOFACT-T section is build to suggest the most suitable energy conversion Technologies for the specific fuel analyzed. The major combustion technologies are here considered: Bubbling Fluidized Bed combustion, Circulating Fluidized Bed combustion, Fixed Bed combustion (industrial or residential), Pulverized Fuel combustion, Thermal and material recovery (incineration). Fuel characteristics (at the moment 10 properties) and technologies requirements are matched on a matrix (which is kept updated with Best Available Technologies data). The results are the list of suitable (green) / borderline (orange) / inadequate (red) properties. For this corn cobs sample, because of agglomeration is a major risk, the tool evidences that fluidized beds might not be the most suited solution. However, such risk is not problematic for applications in fixed-bed, industrial scale units (e.g. due to fine bed temperature control). Grate furnaces might be more suitable to handle molten slag – agglomerated ash particles than fluidized beds. Beside complementary information such as the computed LHV are indicated.
The wrap up is a summary of the brief comments reported above.
Would you use such tool to screen unconventional fuels? Would this be an effective help for the preliminary fuel characterization?Continue Reading