Converting rice husk into energy is a promising method of generating renewable and reducing greenhouse gas emissions. In this research hush considered as biomass fuel. The characteristics gasification were investigated at an Equivalence Ratio (ER) 0.25–0.38 gasifier temperature 750-870°C in 20 tons per day (TPD) using steam explosion process fluidized bed system. Different operation conditions,...

A fluidized bed is being studied as a very promising method for mass production of IFE targets. Large beds could be filled with many targets to provide large-scale production, while a near-isothermal environment could be maintained in principle around each target (as required for smooth layering to meet the physics requirements on the ice characteristics) through the random movement and spin of...

in this paper, combustion of char in the riser of circulating fluidized bed was modeled using aspen plus. since physical and chemical phenomena are involved in the process, the model integrates the two-phase hydrodynamic sub-model with the reaction sub-model derived from the literature. in the proposed model, the fluidized bed is divided into several sections and the behavior of each section wa...

In this study, thermochemical biomass gasification was performed on a bench-scale fluidized-bed gasifier with steam and air as fluidizing and oxidizing agents. Distillers grains, a non-fermentable byproduct of ethanol production, were used as the biomass feedstock for the gasification. The goal was to investigate the effects of furnace temperature, steam to biomass ratio and equivalence ratio o...

Changes in the physical properties (such as particle density, bulk density of the bed, shrinkage and bed porosity of fresh green peas particulates were compared at 50 o C, during fluidized bed drying and fixed bed drying. Empirical relationships of the following nature were developed for the changes in shrinkage [VR = A + B MR], particle density [ρ p = A + B MR + C exp (-DMR)], and bulk density...

One significant factor in the operation of a fluidized bed combustor is the manner in which coal particles disperse and mix with the bed material upon entering the bed. A thermal tracing technique was used to study the mixing characteristics in a 1/4 scale model of a pressurized bubbling fluidized bed combustor. Particles cooled by liquid nitrogen are injected into the bed in the same way that ...