Application of a Device for Uniform Web Drying and Preheating Using Microwave Energy

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Description

The project summarized in this report dealt with an evaluation of new microwave applicator ideas for paper preheating and drying. The technical basis for success in this project is the fact that Industrial Microwave Systems has recently identified certain previously unrecognized wave guide ''design variables'' and hardware implementation concepts that can be employed to greatly improve the uniformity of microwave energy distribution for continuous flow processes. Two applicator concepts were ultimately evaluated, a Cross-Machine Direction (CD) oriented applicator and a Machine Direction (MD) oriented applicator. The economic basis for success is the result of several factors. Since 1985, the capital ... continued below

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Ahrens, Frederick W.; Habeger, C.; Loughran, J. & Patterson, T. October 2, 2003.

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Description

The project summarized in this report dealt with an evaluation of new microwave applicator ideas for paper preheating and drying. The technical basis for success in this project is the fact that Industrial Microwave Systems has recently identified certain previously unrecognized wave guide ''design variables'' and hardware implementation concepts that can be employed to greatly improve the uniformity of microwave energy distribution for continuous flow processes. Two applicator concepts were ultimately evaluated, a Cross-Machine Direction (CD) oriented applicator and a Machine Direction (MD) oriented applicator. The economic basis for success is the result of several factors. Since 1985, the capital expenditure required for an industrial microwave applicator system has decreased by a factor of four. The maintenance costs have decreased by a factor of 10 and the life expectancy of the magnetron has increased by more than a factor of four to in excess of 8,000 hours (nearly one year at 24 hours/day operation).

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OSTI as DE00816299

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  • Other Information: PBD: 2 Oct 2003

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  • Report No.: DOE/ID/13872
  • Grant Number: FC07-00ID13872
  • DOI: 10.2172/816299 | External Link
  • Office of Scientific & Technical Information Report Number: 816299
  • Archival Resource Key: ark:/67531/metadc737385

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Creation Date

  • October 2, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • April 13, 2018, 5:20 p.m.

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Ahrens, Frederick W.; Habeger, C.; Loughran, J. & Patterson, T. Application of a Device for Uniform Web Drying and Preheating Using Microwave Energy, report, October 2, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc737385/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.