Thermoacoustic Pin Stack.

Abstract

The construction of a new stack geometry for thermoacoustic engines, called a 'pin stack', is progressing. The stack is at the heart of a class of heat engines that use sound to deliver refrigeration, or use a temperature difference to generate sound. Calculations show that the pin stack should make useful improvements in engine efficiency. About 2300 wires are being hand sewn in a nearly hexagonal lattice between hot and cold heat exchangers. Accuracy of the placement of the wires is on the order of 10-20%. It was found, through simulation, that the pin stack is more sensitive to operating conditions than is a conventional stack.

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Document Details

Document Type
Technical Report
Publication Date
Jul 07, 1995
Accession Number
ADA296232

Entities

People

  • Robert M. Keolian

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Classification
  • Construction
  • Contracts
  • Efficiency
  • Electronic Mail
  • Engines
  • Errors
  • Geometry
  • Heat Energy
  • Heat Engines
  • Heat Exchangers
  • Heat Pumps
  • Heat Transfer Devices
  • Information Operations
  • Military Research
  • Simulations

Readers

  • Combustion and Flow Dynamics.
  • Software Engineering