Properties of Working Fluids for Thermoacoustic Refrigerators.

Abstract

The objective of this project is to provide thermophysical property data for candidate working fluids in a form suitable for optimizing the design of thermoacoustic refrigerators. The data will be provided in a computer program that calculates the properties of the most promising gas mixtures. This package will consist of currently available data from the literature (provided that it is of sufficient quality) and our own measurements (when insufficient literature data exist). The properties provided are viscosity, thermal conductivity, Prandtl number, density, speed-of-sound, specific heat, enthalpy, and entropy for temperatures between -20 and 30 C and pressures up to 20 bars. We will also explore methods of varying the composition of the working fluid to maintain a constant speed of sound over the operating range of the refrigerator. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1995
Accession Number
ADA297420

Entities

People

  • Keith A. Gillis
  • Michael R. Moldover

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Impedance
  • Acoustic Measurement
  • Acoustics
  • Boundary Layer
  • Computer Programs
  • Geometry
  • Heat Capacity
  • Integral Equations
  • Measurement
  • Prandtl Number
  • Specific Heat
  • Thermal Conductivity
  • Thermophysical Properties
  • Transducers
  • Transmission Lines
  • Transport Properties

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Computational Modeling and Simulation
  • Fluid Dynamics.