Hydrogen turbines for space power systems: A simplified axial flow gas turbine model

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This paper descirbes a relatively simple axial flow gas expansion turbine mass model, which we developed for use in our space power system studies. The model uses basic engineering principles and realistic physical properties, including gas conditions, power level, and material stresses, to provide reasonable and consistent estimates of turbine mass and size. Turbine design modifications caused by boundary layer interactions, stress concentrations, stage leakage, or bending and thermal stresses are not accounted for. The program runs on an IBM PC, uses little computer time and has been incorporated into our system-level space power platform analysis computer codes. Parametric design ... continued below

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Pages: 34

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Hudson, S.L. January 1, 1988.

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Description

This paper descirbes a relatively simple axial flow gas expansion turbine mass model, which we developed for use in our space power system studies. The model uses basic engineering principles and realistic physical properties, including gas conditions, power level, and material stresses, to provide reasonable and consistent estimates of turbine mass and size. Turbine design modifications caused by boundary layer interactions, stress concentrations, stage leakage, or bending and thermal stresses are not accounted for. The program runs on an IBM PC, uses little computer time and has been incorporated into our system-level space power platform analysis computer codes. Parametric design studies of hydrogen turbines using this model are presented for both nickel superalloy and carbon/carbon composite turbines. The effects of speed, pressure ratio, and power level on hydrogen turbine mass are shown and compared to a baseline case 100-MWe, 10,000-rpm hydrogen turbine. Comparison with more detailed hydrogen turbine designs indicates that our simplified model provides mass estimates that are within 25% of the ones provided by more complex calculations. 8 figs.

Physical Description

Pages: 34

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  • 5. symposium on space nuclear power systems, Albuquerque, NM, USA, 11 Jan 1988

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  • Other: DE88009585
  • Report No.: SAND-87-1923C
  • Report No.: CONF-880122-12
  • Grant Number: AC04-76DP00789
  • Office of Scientific & Technical Information Report Number: 5226975
  • Archival Resource Key: ark:/67531/metadc1072046

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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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  • January 1, 1988

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 28, 2018, 1:47 p.m.

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Hudson, S.L. Hydrogen turbines for space power systems: A simplified axial flow gas turbine model, article, January 1, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc1072046/: accessed April 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.