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The quantum Otto mobile and its application to directed energy
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Paper Abstract

We show that it is possible to improve the efficiency of a laser system by adding a classical heat engine cycle to the laser gas that can remove both thermal and vibrational energy from the gas. A rapid pulsed CO2 laser/gas expansion cycle engine and a continuous CO2 laser, Stirling or Brayton cycle engine are analyzed. We derive a theoretical total energy recovery efficiency for a CO2 laser combined with a classical heat engine of 89%. Then, several distinctly different functional laser-coupled heat engine designs will be evaluated to determine the viability of these concepts in practice. Ultimate practical device efficiencies are projected to reach 75% efficiency.

Paper Details

Date Published: 20 September 2004
PDF: 11 pages
Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); doi: 10.1117/12.548206
Show Author Affiliations
Alan E. Hill, Texas A&M Univ. (United States)
Plasmatronics, Inc. (United States)
Yuri V. Rostovtsev, Texas A&M Univ. (United States)
Marlan O. Scully, Texas A&M Univ. and Princeton Univ. (United States)

Published in SPIE Proceedings Vol. 5448:
High-Power Laser Ablation V
Claude R. Phipps, Editor(s)

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