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fuel nozzles

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Published: 01 July 2009
Fig. 10.13 Near-term fix to prevent aerodynamic excitation of preburner fuel nozzles in Space Shuttle Main Engines by inserting spacers to limit nozzle tip displacement More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270126
EISBN: 978-1-62708-301-0
... nozzle was also damaged, and based on its microstructure, came very close to melting. Investigators determined that the burner was mounted backwards, facing the compressor rather than the turbine. They also recommended a redesign to prevent the fuel nozzle from being reversed. fuel nozzles...
Image
Published: 01 October 2005
Fig. CH26.1 Damaged fuel nozzle More
Image
Published: 01 July 2009
Fig. 10.12 Injector nozzle element in a fuel preburner assembly showing location of the initiation and propagation of high-cycle fatigue cracks at the critical radius (point A ) More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040010
EISBN: 978-1-62708-428-4
..., liquid kerosene may be used as a fuel and air as the oxidizer.) The products of combustion expand through a nozzle where the gas velocities may become supersonic. Powder is introduced into the nozzle and is heated and accelerated, achieving velocities of up to about 550 m/s. Figure 4 is a schematic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460253
EISBN: 978-1-62708-285-3
... Abstract The Nuclear Waste Management Organization (NWMO) investigates approaches for managing Canada's used nuclear fuel. As part of a larger program investigating concepts of copper coatings, NWMO has begun exploring copper cold spray in collaboration with the National Research Council...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320003
EISBN: 978-1-62708-332-4
... process and equipment. Iron is present in iron ore as iron oxide, contaminated with impurities. Iron oxide is reduced to metallic iron in a blast furnace by using coke as fuel and a reducing agent and limestone as a fluxing agent. A blast of air is blown into the lower section of the furnace...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060231
EISBN: 978-1-62708-343-0
... in the center of the figure, with the large expansion nozzle (not shown fully in the cut-away) immediately below. In the middle at the top is the Main Injector where the fuel (gaseous high-pressure hydrogen) is first brought together with the oxidizer (gaseous high-pressure oxygen) to be ignited in the MCC...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080249
EISBN: 978-1-62708-304-1
... on the hot-section components, such as nozzle guide vanes and rotor blades, resulting in accelerated oxidation (or sulfidation) attack. This is commonly referred to as “hot corrosion.” Sulfur in the fuel is generally limited to 0.3% for commercial jet engines and to 1.0% for marine gas turbines ( Ref 1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
.... On the other hand, the particle velocity and temperature, v p and T p , can be regarded as impact conditions that depend mainly on the process parameters, such as gas temperature, gas pressure, and nozzle dimensions. There is also an influence of the particle temperature on the critical velocity, which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200369
EISBN: 978-1-62708-354-6
... by overlaying areas which have worn during service, and in fabrication. Joining includes austenitic manganese steel to itself, or to mild and low alloy steel. Manganese steel can be shaped for welding by oxy-fuel, plasma arc, and arc carbon and thermal cutting processes. The brief application of heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460017
EISBN: 978-1-62708-285-3
... ) are related processes. As compared to conventional thermal spray technology, cold spraying is relatively simple to implement. A pressurized gas, typically nitrogen or helium, is preheated and reaches supersonic velocities after passing through a converging/diverging de Laval nozzle. Through a separate gas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030209
EISBN: 978-1-62708-282-2
... overhead X X Pre-fractionator overhead X X Effluent X X Debutanizer overhead X X Depropanizer overhead X X Hydrogen stripper feed X … Hydrogen scrubber water … X Source: ( Ref 2 ) The refining of crude oil into useful fuels and other products produces a number...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... techniques for nozzles and buckets. It also presents key information from a detailed review of the literature and the results of a survey on combustion-turbine material problems. buckets combustion turbines life assessment nozzles General The combustion turbine in its simplest form consists...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030025
EISBN: 978-1-62708-282-2
...; most of the corrosion encountered in turbines burning liquid fuels can be described as type I hot corrosion, which occurs primarily in the metal temperature range of 850 to 950 °C (1550 to 1750 °F). This is a sulfidation-based attack on the hot gas path parts involving the formation of condensed salts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... in this application primarily to reduce overall vehicle weight and to improve fuel economy. The freezing range is strongly dependent on the silicon concentration in these alloys. For example, an expanded view of Fig. 5.2 would reveal that for a 10% Al-Si alloy the freezing range is 16 °C, while for a 5% Al-Si alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820077
EISBN: 978-1-62708-339-3
... cleaning is also recommended. Caution: Under certain conditions, when using solvents, a fire hazard or health hazard may exist. Second, a welding torch with a large nozzle inside diameter, such as 19 mm (¾ in.), and a gas lens (inert gas calming screen) is necessary. Pure, welding grade argon...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460209
EISBN: 978-1-62708-285-3
... technology that can deposit metals or metal-ceramic composites under atmospheric conditions by accelerating feedstock particles above supersonic (300 to 1200 m/s, or 1000 to 3900 ft/s) speeds using a converge-diverge de Laval nozzle ( Ref 8.1 – 8.8 ). Because the cold spray process can produce thick deposits...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... associated with deposits on the surface of the component and the subsequent fluxing of the protective oxide layer, which is not only removed but prevented from being regenerated. Some early deposit-modified corrosion processes were witnessed in the power turbine industry when the element vanadium in fuel...