Advanced Energy Conversion Technologies. Ignition Processes of Pulverized Coal Injected into Preheated Gas Flow.

Alternate Coal Conversion Technologies

Propagation characteristics of pulverized coal and gas two-phase flow during an outburst

Coal and gas outbursts are dynamic failures that can involve the ejection of thousands tons of pulverized coal, as well as considerable volumes of gas, into a limited working space within a short period. The two-phase flow of gas and pulverized coal that occurs during an outburst can lead to fatalities and destroy underground equipment. This article examines the interaction mechanism between pu...

Pressure and flow control of a pulverized coal injection vessel

This paper deals with model-based pressure and flow control of a fine coal injection vessel for the use of the blast furnace injection process. By means of system modeling aild identification, the structure and behavior of the coal injection vessel are analyzed. It is shown that by use of model-based design, the control goals can be reached and the control performance can be significantly impro...

Distributed Activation Energy Model of Heterogeneous Coal Ignition

We present a model that simulates the conventional tube-furnace experiment used for ignition studies. The Distributed Activation Energy Model of Ignition accounts for particle-to-particle variations in reactivity by having a single preexponential factor and a Gaussian distribution of activation energies among the particles. The results show that the model captures the key experimental observati...

Social sustainability assessment of conversion technologies: Municipal solid waste into bioenergy using Best Worst Method

The majority of sustainability assessments of the bio based industries are primarily focused on the environmental and economic aspects, while social impacts are rarely considered. While overlooking social dimension can have a serious harmful impact across supply chains. To address this issue, this study proposes a modified systemic approach for a social sustainability impact assessment of the te...