Engineering design and analysis of advanced physical fine coal cleaning technologies
The changes made to the Coal Cleaning Simulator during this period were mostly aimed at correcting problems found during the flowsheet validations. one modification was made to the washability interpolation. Prior to interpolation, the feed size distribution is preprocessed by a subroutine which resets the size intervals. That subroutine was changed to ensure that standard screen sizes be used for the size intervals, with only the topsize being the actual user specified size limit. This should prevent problems such as the size range being much wider than that provided by the user (previously, this subroutine would add fine size intervals to the input size range, in some cases). Another change made was the modification of the heavy media cyclone water balance algorithm. Because of the internal calculations of both the amount of media and makeup water required, the water balance was not being made correctly in the case where a feed that was too dilute. The report writer for this model was also modified in order to correctly label the material balances reported. Other changes made were the addition of fifteen coals to the Coal Property Databank, and the referencing of utilities in the screen cost models for operating cost calculations. Finally, a number of problems had been reported for CCS cost models. These were related to discrepancies between UOS block sizing calculations and cost block sizing calculations, and utilities (horsepower requirement) calculations. The corrections were applied to the latest CCS version.
- Research Organization:
- Aspen Technology, Inc., Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-89PC89908
- OSTI ID:
- 7273378
- Report Number(s):
- DOE/PC/89908-T22; ON: DE92040661
- Country of Publication:
- United States
- Language:
- English
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Engineering design and analysis of advanced physical fine coal cleaning technologies. Technical progress report No. 29, March 1993
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Related Subjects
COAL FINES
CLEANING
AGGLOMERATION
CENTRIFUGES
COAL PREPARATION
CYCLONE SEPARATORS
DISTRIBUTION
ENGINEERING
FLOTATION
HEAVY MEDIA SEPARATION
PARTICLE SIZE
PITTSBURGH ENERGY TECHNOLOGY CENTER
PROGRESS REPORT
SCREENS
CARBONACEOUS MATERIALS
COAL
CONCENTRATORS
DOCUMENT TYPES
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
INERTIAL SEPARATORS
MATERIALS
NATIONAL ORGANIZATIONS
POLLUTION CONTROL EQUIPMENT
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SIZE
US DOE
US ORGANIZATIONS
010300* - Coal
Lignite
& Peat- Preparation- (1987-)