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Thermal and radiative properties of coal-ash deposits. Technical progress report No. 9, December 1, 1983-February 29, 1984

Author
Anderson, D. W.
Published
United States : [publisher not identified], 1984
Springfield, Va.: National Technical Information Service, [approximately 1984]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Incropera, F. P., Vader, D. T., Viskanta, R., and Zumbrunnen, D. A.

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Summary
Two thermal conductance experiments on coal-ash deposits (II.D and II.E) have been performed in the High Temperature Test Facility in the last quarter. An attempt at a third experiment has been made. Ash deposits from the Purdue University power plant were studied in both of the successful experiments. Deposits were crushed and sized such that particle diameters of 250 to 590 m were retained. Results from an earlier experiment (II.C) using larger size particle (590 to 841 m) from the same ash deposit source have been discussed in Progress Report No. 8. The two most recent experiments were performed to determine the effects of smaller particles size and thermal history, and to check reproducibility of experimental apparatus and procedures. The conductance results from Experiments II.D and II.E show that the light sintering experienced in II.D did not produce any irreversible changes, and reproducibility between II.D and II.E is excellent. The high temperatures in II.E ( maximum surface temperature of 1394/sup 0/C) were well above the melting temperature of the slag, producing a melt layer approximately 5 mm thick. The melt layer is responsible for the irreversible thermal conductance curve. 3 figures.
Report Numbers
DE84007383; DOE/PC/40789-T9
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: FG22-81PC40789
OSTI Identifier 5229166
Research organization: Purdue Univ., Lafayette, IN (USA). School of Mechanical Engineering.
View MARC record | catkey: 47338438