Effect of Heating Rate on the Thermodynamic Properties of Pulverized Coal Page: 4 of 16
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EFFECT OF HEATING RATE ON THE THERMODYNAMIC PROPERTIES OF
This semi-annual technical progress report describes work performed under DOE Grant No.
DE-FG22-96PC96224 during the period September 24, 1997 to April 23, 1998 which covers the
third six months of the project. During this reporting period, several components of the
electrodynamic balance measurement system, Single Particle Laboratory, Federal Energy Technology
Center, Morgantown, WV, were successfully calibrated. A large number of single polystyrene
spheres covering a size range of 80 - 200 pm in diameter were caught in the electrodynamic balance.
The size counts of their projected images obtained using the top video-based imaging system, bottom
video-based imaging system, and diode-array imaging system were calibrated against the actual size
of the particles to within 3 pm. Signals obtained by the particle position control system were also
calibrated against the actual movement of a polystyrene particle in the balance to within 1 pm.
Presently, calibration of the Single Color Pyrometer to measure coal particle temperature histories
is in progress. Donation agreement for the Heated-Grid measurement system from our industrial
partner, United Technologies Research Center (UTRC), CT, was obtained and the arrangement for
the completion of the shipment of the grid system components from UTRC to CAU is in progress.
Several theoretical analyses were conducted to improve the model performance of the present work
and the results were compared with data available from our previous studies. These activities resulted
in several publications including three conference papers, and one student poster paper during this
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Sampath, Ramanathan. Effect of Heating Rate on the Thermodynamic Properties of Pulverized Coal, report, May 1, 1998; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc667385/m1/4/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.