March 2012

Numerical modelling of the fluidynamics in a bubbling fluidized bed biomass gasifier

  The fluid dynamics presented in this paper for a fluidized bed gasifier consists of estimating the volume fraction fields of gas and solid phases, as well as the velocity fields of gas and solid phases and the pressure drop inside the fluidized bed. However, understanding of the flow characteristics has an important role in understanding of the operation of the gasifier. The analyzed system consists of the...

Author(s): Silva J. D.

March 2012

Corrosion-erosion on waste heat recovery boiler system via blowdown optimization

  It is estimated that problems due to corrosion-erosion of boiler system cost industries billions of dollars per year. Method of corrosion-erosion control varies depending upon the type of problem encountered. This study is focused on the optimization of the boiler blowdown frequency and its effect on the chemical values of the water-steam cycle. Parameters such as conductivity, iron and silica concentrations...

Author(s): Zainal Zakaria and Nor Ismail Hashim