Description, calibration, and preliminary testing of the coal liquefaction heat transfer coefficient measurement test unit

Clicks: 243
ID: 273616
1979
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Abstract
The efficiency of energy utilization within coal-liquefaction process is of major significance to the commercialization of the process. Heat exchange equipment is also one of the major economic investments in new plants. Consequently, reliable heat transfer data are required for the economical design of heat exchange equipment. Since accurate heat transfer coefficients of coal slurries, especially with a gas phase present, cannot be accurately calculated from known physical data for the operational conditions found in the coal-liquefaction process, experimentally determined heat transfer coefficients under actual process conditions are needed. A liquefaction heat-transfer-coefficient measurement test unit for a nominal one-half-ton-per-day coal slurry was constructed, calibrated, and operated at ANL. This test unit was built to determine heat transfer coefficients needed for design of feed-heat and effluent-heat exchangers used in coal-liquefaction processes. The heat-transfer test module was substituted for the preheater and reactor used in the normal coal-liquefaction process. The heat transfer coefficient can be evaluated for the heat transfer between the three-phase feed and effluent fluids in turbulent flow and a heated or cooled stainless steel surface. A description is presented of the unit and its capabilities, calibration procedures and results, and preliminary operation and data analysis. Recommendations are made thatmore » should improve accuracy and ease of operation and data analysis of the test unit.« less
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Authors T.P. Mulcahey,R.N.K. Lo,T.R. Bump,M.E. Mulcahey,J. Fischer,T.F. Cannon,R.E. Brock,W.I. Wilson,D. Bowyer;T.P. Mulcahey;R.N.K. Lo;T.R. Bump;M.E. Mulcahey;J. Fischer;T.F. Cannon;R.E. Brock;W.I. Wilson;D. Bowyer;
Journal Description, calibration, and preliminary testing of the coal liquefaction heat transfer coefficient measurement test unit
Year 1979
DOI
10.2172/6129476
URL
https://sciprofiles.com/publication/view/3a51779fe751ce6e97ac74ea4f931d4a
Keywords
heat transfer energy transfer design mixtures coal fossil fuels fuels energy sources industrial plants lignite and peat coal liquefaction plants heat exchangers measuring methods slurries test facilities carbonaceous materials dispersions suspensions * - coal

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