Evaluation of the Operational Behaviour of Fixed-bed Biomass Gasifiers - A Novel Approach for Steady-state Analysis
Hollenstein, C., Zemann, C., Antolini, D., Patuzzi, F., Martini, S., Baratieri, M., Gölles, M.
Assessing the operational behaviour of biomass gasification systems is a crucial basis for further improvements in terms of operational behaviour and robustness in order to increase the technologies’ operational and economic viability. However, in most fixed-bed biomass gasification systems not all parameters required for the assessment can be measured directly. Typically, unknown parameters are determined by using as many balance equations as parameters have to be determined neglecting the additional information provided by other available but not chosen balance equations. Thus, these approaches do not incorporate all measurement data available resulting in a lack of reliability in their results. A detailed analysis of these approaches emphasises that even small deviations in the measurement data can lead to significant deviations in the calculated parameters, demonstrating that individual choices of equations can be highly sensitive regarding measurement uncertainties. Therefore, an adjusted weighted least squares approach is developed utilizing an overdetermined system of equations incorporating all balance equations simultaneously. Thus, all measurement data available is taken into account, minimizing the influences of measurement uncertainties on the determined parameters. A comprehensive analysis shows that this approach is less sensitive to measurement uncertainties, allowing for a more reliable and accurate assessment of fixed-bed biomass gasifiers.
fixed bed, gasification, mass balance, performance assessment
Biomass Conversion Technologies for Heating, Cooling and Electricity
Gasification for power, CHP and polygeneration
27th European Biomass Conference and Exhibition
849 - 860
Legal notice | Ethical policy | Terms & Conditions | Contact | List of issues
© 2010-2019 ETA-Florence Renewable Energies,Via Giacomini 28, I - 50132 Florence, Italy | Tel. +39 055 5002174 - Fax +39 055 573425E-mail email@example.com - P.Iva n. 04348060486