Apparatus and method for determining luminosity of hydrocarbon fuels
First Claim
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1. A method for determining the quality of a liquid hydrocarbon fuel by measuring its luminosity comprising:
- (a) introducing a downflowing stream of linearly spaced droplets of said hydrocarbon fuel into a combustion zone;
(b) combusting said stream of droplets in said combustion zone; and
(c) measuring the intensity of the radiation emitted by said stream of droplets during said combustion.
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Abstract
Disclosed is apparatus comprising a means for injecting a controlled stream of hydrocarbon liquid into a concurrently flowing stream of gas in a Venturi forming droplets. Droplets are subsequently combusted in a gas stream. The level of radient emissions is measured photoelectrically. Results obtained are useful in predicting service life of combustor walls in jet engines and the like.
108 Citations
17 Claims
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1. A method for determining the quality of a liquid hydrocarbon fuel by measuring its luminosity comprising:
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(a) introducing a downflowing stream of linearly spaced droplets of said hydrocarbon fuel into a combustion zone; (b) combusting said stream of droplets in said combustion zone; and (c) measuring the intensity of the radiation emitted by said stream of droplets during said combustion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for determining the luminosity of a liquid hydrocarbon fuel comprising:
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(a) introducing a downflowing stream of linearly spaced droplets of said liquid fuel into a downflowing moving stream of heated oxidizing gases; (b) at least partially combusting said stream of droplets; and (c) measuring the intensity of the radiation from said combusting stream of droplets at a plurality of locations in said stream. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A device for measuring the luminosity of a burning hydrocarbon liquid fuel comprising:
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(a) a venturi positioned at or near the upper end of a transparent tubular member; (b) a capillary tube having an open end positioned near the throat of said venturi; (c) means for injecting a stream of liquid hydrocarbon from said capillary tube into said venturi and thence into said tubular member; (d) means for injecting a stream of gas into the space defined between said venturi tube and said capillary tube, thereby forming a series of droplets of hydrocarbon liquid; (e) means at or near the top of said tubular member for burning in the presence of excess oxygen a combustible gas and for igniting said droplets of hydrocarbon liquid; and (f) means for measuring the luminosity of said burning droplets of hydrocarbon fuel as they flow through said tubular member. - View Dependent Claims (16, 17)
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Specification