Method and apparatus for evaluating condensation amount

Details Method and apparatus for evaluating condensation amount Method and apparatus for evaluating condensation amount

1986-12-23

1989-09-12

Williams, Hezron E.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73335, G01N 700

Patent

active

048648442

ABSTRACT:
In order to evaluate the condensation amount in a jet engine intake duct, for calibrating the engine, apparatus are provided which induce a high speed flow of air through a duct. The duct is designed so that the air velocity within it very gradually increases along it until a choked (sonic) condition is reached. At or around sonic conditions static pressure is very responsive to changes in flow due to condensation. Thus by first obtaining a pressure profile along the duct under non-condensing conditions and then comparing this with a pressure profile under condensing conditions a condensation amount can be computed.

REFERENCES:
patent: 3234780 (1966-02-01), Pappas
patent: 3738154 (1973-06-01), Henry
patent: 4028942 (1977-06-01), Gardiner
patent: 4507875 (1985-04-01), Hirsch et al.

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