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Title: Method and apparatus for the control of fluid dynamic mixing in pulse combustors

Abstract

In a method and apparatus for controlling total ignition delay time in a pulse combustor, and thus controlling the mixing characteristics of the combustion reactants and the combustion products in the combustor, the total ignition delay time is controlled by adjusting the inlet geometry of the inlet to the combustion chamber. The inlet geometry may be fixed or variable for controlling the mixing characteristics. A feedback loop may be employed to sense actual combustion characteristics, and, in response to the sensed combustion characteristics, the inlet geometry may be varied to obtain the total ignition delay time necessary to achieve the desired combustion characteristics. Various embodiments relate to the varying of the mass flow rate of reactants while holding the radius/velocity ratio constant. 10 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7071950
Patent Number(s):
5118281 A
Application Number:
PPN: US 7-497004
Assignee:
Dept. of Energy, Washington, DC (United States) SNL; EDB-94-082873
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Patent File Date: 20 Mar 1990
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; FUEL FEEDING SYSTEMS; DESIGN; PULSE COMBUSTORS; COMBUSTION CONTROL; OPERATION; COMBUSTORS; CONTROL; FUEL SYSTEMS; 421000* - Engineering- Combustion Systems

Citation Formats

Bramlette, T.T., and Keller, J.O. Method and apparatus for the control of fluid dynamic mixing in pulse combustors. United States: N. p., 1992. Web.
Bramlette, T.T., & Keller, J.O. Method and apparatus for the control of fluid dynamic mixing in pulse combustors. United States.
Bramlette, T.T., and Keller, J.O. Tue . "Method and apparatus for the control of fluid dynamic mixing in pulse combustors". United States.
@article{osti_7071950,
title = {Method and apparatus for the control of fluid dynamic mixing in pulse combustors},
author = {Bramlette, T.T. and Keller, J.O.},
abstractNote = {In a method and apparatus for controlling total ignition delay time in a pulse combustor, and thus controlling the mixing characteristics of the combustion reactants and the combustion products in the combustor, the total ignition delay time is controlled by adjusting the inlet geometry of the inlet to the combustion chamber. The inlet geometry may be fixed or variable for controlling the mixing characteristics. A feedback loop may be employed to sense actual combustion characteristics, and, in response to the sensed combustion characteristics, the inlet geometry may be varied to obtain the total ignition delay time necessary to achieve the desired combustion characteristics. Various embodiments relate to the varying of the mass flow rate of reactants while holding the radius/velocity ratio constant. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {6}
}