State-of-the-art review of heat-recovery processes. [76 references]

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A review was conducted of industrial heat-recovery processes and related equipment of potential benefit to coal-conversion complexes. Major categories of heat-exchange processes and equipment investigated included special shell-and-tube; periodic-flow and rotary regenerators; heat pipe arrays; direct phase contactors; steam and organic Rankine cycles for power generation from waste heat; and heat-pump applications to distillation. The importance of heat recovery and utilization in coal-conversion plants is widely recognized, as are the general problems associated with the design of the exchangers. A review of past experience in operating coal-conversion plants and of some proposed designs indicates that many flows will be in ... continued below

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Pages: 80

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Gambill, W.R. & Reed, W.R. August 1, 1978.

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Description

A review was conducted of industrial heat-recovery processes and related equipment of potential benefit to coal-conversion complexes. Major categories of heat-exchange processes and equipment investigated included special shell-and-tube; periodic-flow and rotary regenerators; heat pipe arrays; direct phase contactors; steam and organic Rankine cycles for power generation from waste heat; and heat-pump applications to distillation. The importance of heat recovery and utilization in coal-conversion plants is widely recognized, as are the general problems associated with the design of the exchangers. A review of past experience in operating coal-conversion plants and of some proposed designs indicates that many flows will be in the laminar or transition regimes and that overall heat-transfer coefficients for exchangers involving at least one process stream will be low (less than or equal to 100 Btu/hr.ft/sup 2/./sup 0/F). Discussions with individuals knowledgeable in the process heat-transfer field revealed a relatively high degree of unanimity in that design of these exchangers would be more difficult than would their fabrication. Designs are based on the process and property data provided and construction materials specified by the buyer. No warranties are made concerning material lifetime or effect of fouling on performance. There is a clear need for more physical-property data (especially viscosities), improved heat-transfer correlations for multiphase streams (coal-oil and coal-water slurries, e.g.), and rates of fouling, corrosion, and erosion.

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Pages: 80

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Dep. NTIS, PC A05/MF A01.

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  • Report No.: ORNL/TM-6222
  • Grant Number: W-7405-ENG-26
  • DOI: 10.2172/6647308 | External Link
  • Office of Scientific & Technical Information Report Number: 6647308
  • Archival Resource Key: ark:/67531/metadc1183911

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • August 1, 1978

Added to The UNT Digital Library

  • July 3, 2018, 8:14 a.m.

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  • Feb. 21, 2019, 4:14 p.m.

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Gambill, W.R. & Reed, W.R. State-of-the-art review of heat-recovery processes. [76 references], report, August 1, 1978; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1183911/: accessed March 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.