A laboratory, fluidized-bed gasifier is being researched as a means to gasify feedstocks in a process to produce ethanol from biomass. Fluidization characteristics of the bed, especially minimum (Umf) and complete (Ucf) fluidization velocities, were measured because they are critical to the operation of the gasifier. Fluidization properties of sand and chopped switchgrasssand mixtures of differ...

Untapped pine needles with high potential for energy generation in the hilly area are not only a waste of resource but also increase the chance of environmental hazards as forest fires and GHG emission. This study is conducted to propose a new hybrid system (PV/Wind/Biomass) using abundant pine needle resource as a replacement of existing roof-mounted PV/wind hybrid system and analyse the feasi...

Neural Network Model Based Predictive Control (MPC) has become a good choice of control strategy in many cases especially in the process industry because it could face non linearities and cross coupling variables [6], being modeling the first step to achieve this end. The model of a gasifier, provided by ALSTOM Power Technology Centre, is of an industrial standard and has been validated against...

1. INTRODUCTION Because of the apparent importance of dynamic and thermodynamic properties of RFDs to tornadogenesis, these are studied for a variety of prescribed environments using a 1.5-dimension downdraft model. The spatial dimensionality of this model is purposely less than three so as to simplify analyses and to focus on vertical processes, which are thought to be of primary importance. M...

2.1 Background .................................................................................................... 26 2.2 Syngas Classification Based on its Heating Value ........................................ 28 2.2.1 Low-Btu Gas ...................................................................................... 29 2.2.2 Medium-Btu Gas........................................................

In this paper, an innovative power plant, constituted by a gas turbine in combined-cycle fuelled by a synthesis gas (or syngas), produced in a local biomass gasifier, is analyzed. The plant is integrated with an external combustion system, fed by cellulosic biomass, connected to a heat exchanger able to increase the air temperature, as in a regenerative cycle. The combustion products pass throu...