NDLI: Investigation of critical burning of fuel droplets

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Investigation of critical burning of fuel droplets

Content Provider	NASA Technical Reports Server (NTRS)
Author	Faeth, G. M. Allison, C. B. Canada, G. S.
Copyright Year	1972
Description	Measurements were made on the burning of liquid hydrazine, MMH, and UDMH in a combustion gas environment. The experimental range of these tests involved gas temperatures of 1660-2530 K, oxygen concentrations of 0-42% by mass and droplet diameters (employing both droplets and porous spheres) of 0.11-1.91 cm. at atmospheric pressure. A simplified hybrid combustion theory was developed which was found to correlate the present results as well as the experimental measurements of other investigators. Measurements were also made of the monopropellant strand burning rates and liquid surface temperatures of a number of nitrate ester fuels and hydrazine at elevated pressures. The temperature measurements for the nitrate esters were found to be in good agreement with a theoretical model which allowed for gas solubility in the liquid phase at high pressures. Experimental results were also obtained on the burning rates and liquid surface temperatures of a number of paraffin and alcohol fuels burning in air pressures up to 72 atm. For these tests, the fuels were burned from porous spheres in a natural convection environment. Initial findings on a pressurized flat flame burner are also described as well as the design of an oscillatory combustion apparatus to test the response of burning liquid fuels.
File Size	1410030
Page Count	40
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19720016295
Archival Resource Key	ark:/13960/t95766189
Language	English
Publisher Date	1972-01-01
Access Restriction	Open
Subject Keyword	Thermodynamics And Combustion Hydrazines Combustion Physics Pressure Oscillations Liquid Rocket Propellants Critical Point Decomposition High Temperature Gases Propellant Combustion Burning Rate High Pressure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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