Method of and compression tube for increasing pressure of a flow

Details Method of and compression tube for increasing pressure of a flow Method of and compression tube for increasing pressure of a flow

1989-06-29

1992-01-28

Look, Edward K.

Power plants

Pressure fluid source and motor

60269, 239128, F01D 3100

Patent

active

050834290

ABSTRACT:
In a method of and a compression tube (10) for increasing pressure of a flowing gaseous medium the gaseous medium is pressed by an accelerating element (8) to flow with supersonic velocity. Heat is abstracted from the gaseous medium having supersonic velocity and by shock waves the flow is decelerated to a subsonic velocity range in an impact tube section (13) wherein by decelerating and, if necessary, further abstracting heat the pressure is increased. The power machine comprises in any pipeline section and/or instead of compressor a compression tube (10) including the accelerating element (8), a transient tube section (14) receiving supersonic flow of the gaseous medium, an impact tube section (13) comprising a shock wave tube section (12) and advantageously a passage tube section (16) for decelerating the supersonic flow to subsonic velocity and increasing the pressure to a value exceeding the inlet pressure of the accelerating element (8).

REFERENCES:
patent: 3690102 (1972-09-01), DuPont
patent: 3800531 (1974-04-01), Sharpe
patent: 4224790 (1980-09-01), Christensen
Kentfield: "Methods For Achieving A Combustion-Driven Pressure Gain In Gas Turbines" Transaction of the ASME, 110: 704-11, Oct. 1988.
Abdulhadi, M.: "Dynamics of compressible air flow with friction in a variable-area duct" in Warme und Stoffunbertragung 22: 169-172 (1988).
Shapiro, A. M.: The Dynamics and Thermodynamics of Compressible Fluid Flow Roland Press: New York, N.Y. 1953, Chapter 8.

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