is moving the attention towards the development of new combustion technologies. In the last two years several experimental tests were carried with the CRIBE pilot scale gasification facility. Although practical tests are utmost importance to highlights the process performance and reliability, there is a remarkable interest in a deeper knowledge of the gasifier behaviour. To this purpose a distributed model of the gasifier was developed. The model is meant to be used as interpretative tool which may help the analysis of the experimental tests. The model takes into account the sub-processes and heat fluxes involved in the gasification system. Specific tests with vine prunings were used to validate the model, which proved capable to reproduce the gasifier temperature profile. On the other hand the predictions of the gaseous species mass flows were not completely satisfactory. The model provides important information related to the stabilization of the reacting front, taking into account the effect of biomass loading rate and the biomass moisture content
PILOT SCALE GASIFICATION: DEVELOPMENT OF A SIMULATION TOOL TO AID THE EXPERIMENTAL ACTIVITIES
NICOLELLA, CRISTIANO;TOGNOTTI, LEONARDO
2012
Abstract
is moving the attention towards the development of new combustion technologies. In the last two years several experimental tests were carried with the CRIBE pilot scale gasification facility. Although practical tests are utmost importance to highlights the process performance and reliability, there is a remarkable interest in a deeper knowledge of the gasifier behaviour. To this purpose a distributed model of the gasifier was developed. The model is meant to be used as interpretative tool which may help the analysis of the experimental tests. The model takes into account the sub-processes and heat fluxes involved in the gasification system. Specific tests with vine prunings were used to validate the model, which proved capable to reproduce the gasifier temperature profile. On the other hand the predictions of the gaseous species mass flows were not completely satisfactory. The model provides important information related to the stabilization of the reacting front, taking into account the effect of biomass loading rate and the biomass moisture contentI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
