Fundamental Studies of Radial Wave Thermoacoustic Engines.

Abstract

Our research is about arbitrary geometry thermoacoustic engines. The specific geometry studied in detail is the radial wave arrangement. Formal theory and the short stack approximation were derived for this geometry and were used to pursue an answer to the following question: Radial or plane wave thermoacoustic refrigerators? To date, the plane wave refrigerator appears to be the best overall compromise refrigerator, though the radial wave refrigerator has a higher cooling capacity. An evolving numerical design program has been enhanced to include radial or plane wave engines with variable plate spacing and both plane and radial wave resonators simultaneously with application to driving radial wave refrigerators with heat driven plane wave sound sources. Our experiments have mainly been aimed at radial wave prime movers for the purposes of validating the theory and investigating the large amplitude behavior. Heat exchanger design is a critical issue. (KAR) P. 1

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1995
Accession Number
ADA297397

Entities

People

  • W. P. Arnott

Organizations

  • University of Nevada, Reno

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Impedance
  • Acoustic Properties
  • Acoustic Waves
  • Acoustics
  • Boundary Layer
  • Computational Science
  • Convection
  • Critical Temperature
  • Energy
  • Geometry
  • Heat Transfer
  • Plane Waves
  • Resonators
  • Standing Waves
  • Temperature Gradients
  • Thermal Conductivity
  • Waves

Fields of Study

  • Engineering
  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion and Flow Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Hall-Effect Thruster