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ADPO10769 Occurrence of Corrosion in Airframes
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naca-wr-e-33

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Knock Limited Performance of Pure Hydrocarbons Blended with a Base Fuel in a Full-Scale Aircraft Engine Cylinder - I - Eight Paraffins, Two Olefins

Under the sponsorship of the NACA the Bureau of Standards is
synthesizing to a high degree of purity various hydrocarbons for
knock—testing in a full~scale aircraft—engine cylinder. Samples of
these hydrocarbons are also submitted to the Ethyl Corporation for
tests in the 17.6 engine and, where the quantity of supply permits,
to the General Motors Corporation Research Laboratories for tests
in the General Motors engine. In each of these two cases, the
engine conditions are those used in research sponsored by the
American Petroleum Institute Hydrocarbon Research Project on the
knocking characteristics of pure hydrocarbons. The results obtained
by both of these laboratories are available in the reports of the
American Petroleum Institute.

Sufficient supplies of 10 of the hydrocarbons prepared by the
Bureau of Standards have recently been submitted to the NACA for
tests (in which the hydrocarbons are blended in a base fuel) in an
R—1820 6200 cylinder operating under test conditions tentatively
standardized by the Coordinating Research Council.

It is the purpose of this report to present the results of
these tests. The tests were conducted at the Aircraft Engine Research
Laboratory of the National Advisory Committee for Aeronautics during
November and December 19h3.

Preliminary investigations were made by the staff of the Fuel
Synthesis Section, Fuels and Lubricants Division, of AERL to deter—
mine the peroxide number of the samples; U.0.P. Method No. H—35~h0
was followed. Tests of two samples of 2,h,h—trimethyl—2—pentene
showed them to have peroxide numbers of 6.7 and 5.9. The peroxide
number of the 2,h,h—trimethyl-2—pentene was reduced to 0.1 by
passing it twice through a florite drying column. Because this
process removed some of the tetraethyl lead and the inhibitor, the
compound was then leaded and inhibited to correspond to the original
samples as received from the National Bureau of Standards

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naca-wr-e-33 Knock Limited Performance of Pure Hydrocarbons Blended with a Base Fuel in a Full-Scale.pdfDownload 

naca-wr-e-33

  • Version
  • 18 Downloads
  • 1.48 MB File Size
  • 1 File Count
  • April 15, 2017 Create Date
  • April 15, 2017 Last Updated
Scroll for Details

Knock Limited Performance of Pure Hydrocarbons Blended with a Base Fuel in a Full-Scale Aircraft Engine Cylinder - I - Eight Paraffins, Two Olefins

Under the sponsorship of the NACA the Bureau of Standards is
synthesizing to a high degree of purity various hydrocarbons for
knock—testing in a full~scale aircraft—engine cylinder. Samples of
these hydrocarbons are also submitted to the Ethyl Corporation for
tests in the 17.6 engine and, where the quantity of supply permits,
to the General Motors Corporation Research Laboratories for tests
in the General Motors engine. In each of these two cases, the
engine conditions are those used in research sponsored by the
American Petroleum Institute Hydrocarbon Research Project on the
knocking characteristics of pure hydrocarbons. The results obtained
by both of these laboratories are available in the reports of the
American Petroleum Institute.

Sufficient supplies of 10 of the hydrocarbons prepared by the
Bureau of Standards have recently been submitted to the NACA for
tests (in which the hydrocarbons are blended in a base fuel) in an
R—1820 6200 cylinder operating under test conditions tentatively
standardized by the Coordinating Research Council.

It is the purpose of this report to present the results of
these tests. The tests were conducted at the Aircraft Engine Research
Laboratory of the National Advisory Committee for Aeronautics during
November and December 19h3.

Preliminary investigations were made by the staff of the Fuel
Synthesis Section, Fuels and Lubricants Division, of AERL to deter—
mine the peroxide number of the samples; U.0.P. Method No. H—35~h0
was followed. Tests of two samples of 2,h,h—trimethyl—2—pentene
showed them to have peroxide numbers of 6.7 and 5.9. The peroxide
number of the 2,h,h—trimethyl-2—pentene was reduced to 0.1 by
passing it twice through a florite drying column. Because this
process removed some of the tetraethyl lead and the inhibitor, the
compound was then leaded and inhibited to correspond to the original
samples as received from the National Bureau of Standards

FileAction
naca-wr-e-33 Knock Limited Performance of Pure Hydrocarbons Blended with a Base Fuel in a Full-Scale.pdfDownload 
17,003 Documents in our Technical Library
1344565 Total Downloads

Search The Technical Library

Newest Additions

ADPO10769 Occurrence of Corrosion in Airframes
The purpose of this lecture is to provide an overview ...
MIL-STD-1759 Rivets and Rivet Type Fasteners Preferred for Design
The purpose of this book form standard is to provide ...
MIL-STD-810G Environmental Engineering Considerations and Laboratory Tests
This standard contains materiel acquisition program planning and engineering direction ...
MIL-R-7885D General Specification for Rivets, Blind, Structural, Mechanically Locked Spindle and Friction Locked Spindle
This specification covers mechanically locked spindle and  friction locked spindle ...
MIL-HDBK-132A Protective Finishes for Metal and Wood Surfaces
The primary object of this handbook is to provide a ...