3 edition of Deposit formation and heat transfer in hydrocarbon rocket fuels found in the catalog.
Deposit formation and heat transfer in hydrocarbon rocket fuels
Anthony J. Giovanetti
|Statement||Anthony J. Giovanetti, Louis J. Spadaccini, [Eugene L. Szetela].|
|Series||NASA CR -- 168277., NASA contractor report -- NASA CR-168277.|
|Contributions||Lewis Research Center., United Technologies Corporation.|
|The Physical Object|
hydrocarbon-fueled propulsion systems: fuel thermal performance as indicated by physical and chemical effects of cooling passage formation. Thermal integrity encompasses the deposit 1 Billingsley, AIAA Paper , 44th Joint Propulsion Conference, Hartford, CT, the wetted wall for interrogation. Pressures of up to psi were studied using a variety of hydrocarbon fuels, including methane, propane, RP-1, and simulants of RP-1 doped with impurities. The rig generated heat fluxes of up to 53 BTU/in 2/sec and a range of heat transfer, coking, sulfur corrosion, channel coating and chemical refurbishment. Chapter VII--REDUCTION OF DEPOSIT FORMATION BY REMOVAL OF single tube heat transfer rig (Shell Thornton) in research on liquid fuels-rocket, jet, and diesel. His research on hydrocarbon fuels has dealt with properties, composition, availability, and stability of jet and diesel fuels. EGR cooler fouling reduces heat transfer capacity of the cooler significantly and increases pressure drop across the cooler. Engine coolant provided at C is used to cool EGR coolers. The presence of a cold surface in the cooler causes particulate soot deposition and hydrocarbon condensation.
Restoring an urban river--polychlorinated biphenyls and other contaminants in bottom sediment of the lower Neponset River, Massachusetts
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Heat transfer to supercritical pressure hydrocarbons flowing in a horizontal short tube Experimental Thermal and Fluid Science, Vol. 61 Numerical Study on Heat Transfer Deterioration of Supercritical n-Decane in Horizontal Circular TubesCited by: Deposit Formation in Hydrocarbon Rocket Fuels Richard Roback Eugene J.
Szetela Louis J. Spadaccini (as it affects heat transfer limits) and what rates of formation will prevail. Hydrocarbon fuel stability and deposit formation (coking) has been the subject of investigation for many years (Refs.
Deposit formation and heat transfer in hydrocarbon rocket fuels. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, October (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Anthony J Giovanetti; Lewis Research Center.
In the open literature regarding hydrocarbon fuel, the steady-state heat transfer of hydrocarbon fuels has been studied by several researchers   ; however, the heat transfer mechanisms.
Deposit formation and heat transfer in hydrocarbon rocket fuels. research program was undertaken to investigate the thermal stability and heat transfer characteristics of several hydrocarbon fuels under conditions that simulate high-pressure, rocket engine cooling systems.
The rates of carbon deposition in heated copper and nickel-plated. Journal of Thermophysics and Heat Transfer; Browse All Journals; Books. AIAA Education Series; Library of Flight; Progress in Astronautics and Aeronautics; The Aerospace Press; Browse All Books; Meeting Papers; No Access.
Deposit formation and heat transfer in hydrocarbon rocket fuels book formation and heat transfer in hydrocarbon rocket fuels. Books. AIAA Education Series; Library of Flight; Heat Transfer and Deposition Behavior of Hydrocarbon Rocket Fuels.
Ronald Bates, James Edwards and Michael Meyer; 41st Aerospace Sciences Meeting and Exhibit November Deposit formation and heat transfer in hydrocarbon rocket fuels. Experimental investigation on thermal-hydraulic characteristics of endothermic hydrocarbon fuel in 1 mm and 2 mm diameter mini-channels Applied Thermal Engineering, Vol.
Evaluation of heat sink capability and deposition propensity of supercritical endothermic fuels in. The current evaluation of the heat transfer coefficient revealed a tendency for it to change at bioethanol temperatures higher than K, depending on the constant pressure specific heat, which should be considered in the design of combustion chamber cooling channels for bioethanol-fueled rocket.
Journal of Heat Transfer; Journal of Manufacturing Science and Engineering; Journal of Mechanical Design; Journal of Mechanisms and Robotics; Journal of Medical Devices; Journal of Micro and Nano-Manufacturing; Journal of Nanotechnology in Engineering and Medicine; Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering.
Deposit formation and heat transfer in hydrocarbon rocket fuels. Plating the inside of the copper tubes with nickel reduced deposit formation and eliminated tube corrosion in most cases.
The lowest rates of carbon deposition were obtained for natural gas, and. Deposit formation and heat-transfer characteristics of hydrocarbon rocket fuels By E.
Szetela, A. Giovanetti and L. Spadaccini No static citation data No static citation data Cite. (Previously announced in STAR as N) Deposit formation in hydrocarbon rocket fuels with an evaluation of a propane heat transfer correlation.
1. Introduction. The supercritical heat transfer of hydrocarbon fuel plays a key role in heat management technology for liquid rocket and scramjet engines, which endure high heat loads from aerodynamic heating, high temperature engine components, and other heat rative fuel cooling has been considered the most effective cooling method for both the liquid rocket.
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Deposit formation and heat transfer in hydrocarbon rocket fuels. Cleveland, OH: NASA Lewis Research Center,  (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors.
A parametric evaluation of fuel thermal stability was performed at pressures of atm to atm, bulk fuel velocities in the range 6–30 m/s and tube wall temperatures in the range – K. In addition, the effect of the inside wall material on deposit formation was evaluated in selected tests which were conducted using nickel-plated tubes.
This result elucidates that hydrocarbon molecules in fuel can also transform into deposition even in absence of polar species which is inconsistent with the kinetic model of Sander et al., and provides the pathway of thermal oxidation deposit of hydrogenated aviation fuels.
Hideto Kawashima's 22 research works with 82 citations and reads, including: Large-Eddy Simulation of Rotating Detonation with a Non-premixed CH 4 /O 2 Injection. Deposit formation in hydrocarbon rocket fuels with an evaluation of a propane heat transfer correlation.
By C. Aukerman and P. Masters. Abstract (Previously announced in STAR as N Topics: FLUID MECHANICS AND HEAT TRANSFER. Year: OAI identifier: oai: Provided by. A thermal stability and heat transfer investigation was conducted using five common hydrocarbon fuels: JP-7, JP-8, JP-8+, JP, and RP Tests were.
NASA Technical Reports Server (NTRS) - Deposit formation and heat transfer in hydrocarbon rocket fuels An experimental research program was undertaken to investigate the thermal stability and heat transfer characteristics of several hydrocarbon fuels under conditions that simulate high-pressure, rocket engine cooling systems.
The thermal stability (i.e., deposit formation) characteristics of the methane–hydrocarbon mixtures and the natural gas fuel were established and compared with the deposition characteristics of high-purity methane. Testing was conducted at wall temperatures up to K (fuel temperatures to K) for durations of up to 60 hours.
Bradley, R., Bankhead, R., and Bucher, W.,“High Temperature Hydrocarbon Fuels Research in an Advanced Aircraft Fuel System Simulator on Fuel AFFB,” Report AFAPL-TR, Air Force Aero Propulsion Laboratory, WPAFB, OH.
An experimental program was conducted to study deposit formation in hydrocarbon fuels under flow conditions that exist in high-pressure, rocket engine cooling systems.
test apparatus was designed and developed and was used to evaluate thermal decomposition (coking). Flowing aviation fuel is used as a coolant in military aircraft.
Dissolved O 2 reacts with the heated fuel to form undesirable surface deposits which disrupt the normal flow. For purposes of aircraft design, it is important to understand and predict jet fuel oxidation and the resulting surface deposition.
The experiments are conducted with the double aromatic hydrocarbon methylnaphthalene, C 11 H 10, as the test inary drop evaporation experiments with different fuels and hydrocarbons and with wall temperatures close to the saturation point of each test fluid have shown a higher deposit formation tendency for aromatic hydrocarbons and especially for the double aromatic hydrocarbon.
The thermal stability (i.e. deposit formation) characteristics of the methane-hydrocarbon mixtures and the natural gas fuel were established and compared with the deposition characteristics of high-purity methane. Testing was conducted at wall temperatures up to K (fuel temperatures to K) for durations of up to 60 hours.
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Measurements of heat transfer coefficient and the effect of wall temperature, flow velocity, and wetted-material on deposit formation in heated test channels are obtained from larger rigs, such as. Significant influence from coking (aggregation and formation of a non-desirable carbonaceous porous layer on a solid metal surface) on the heat transfer in a cooling system of hypersonic aircraft with hydrocarbon fuel as the coolant is observed.
Depqsi t Formation and Heat Transfer in Hydrocarbon Rocket Fuels A. Ciovanetti L. Spac_ccini E. Szetela," $ • SUMMARY An experimental research program was undertaken to investigate the thermal stability and heat transfer characteristics of several hydrocarbon fuels under conditions that simulate high-pressure, rocket engine cooling.
A series of electrically heated tube experiments was conducted to investigate the potential of JP-7 as a coolant under conditions relevant to a Mach 8 propulsion system. The heat transfer capabilities, carbon deposition, and material compatibility of JP-7 at surface temperatures up to °F ( °C) were tested in in.
diameter tubes of SS, InconelHaynesHaynesand. posit Formation in Hydrocarbon 1s Rocket Fuels with an Evaluation of a i^ Propane Heat Transfer Correlation t 4.
Philip A. Masters and Carl A. Aukerman Lewis Research Center Cleveland, Ohio J l; Y 1'^ ins RECEIV'E8 ^-^ jhASA-TM-tilt' 11) DEPOSIT FUbCAIlCh IN NlEb 11 HYURCCAhbCN HUCKBT FUELS W11h AN EVALGAIIUN OF A FUUPANc HEAT TkANSFEb. The study is motivated by the observation that many Pb-Zn deposits occur within hydrocarbon prone sedimentary basins, and that expulsion of hot basinal brines, over a geologically short period, may contribute significantly to the generation of hydrocarbons.
Hydrothermal modelling of advective heat transfer in a shaly formation above a hot. The precooled combined cycle engines were proposed to overcome the limitation of Mach number due to high-temperature inlet. However, there has been li.
Use of hydrocarbon fuels as coolants for future high-Mach aircraft is challenged by the formation of carbonaceous deposits during thermal stressing at high temperatures (> °C). Deposition of carbonaceous material in the cyclone exit line is a chronic problem for fluid cokers and is a key process limitation to achieving longer run length.
Extensive characterization studies were conducted for laboratory deposits from a bench-scale bitumen coker using modern analytical techniques, e.g., elemental analysis, X-ray fluorescence, thermogravimetric analysis, scanning. Fouling is the accumulation of unwanted material on solid surfaces to the detriment of function.
The fouling materials can consist of either living organisms or a non-living substance (inorganic and/or organic).Fouling is usually distinguished from other surface-growth phenomena in that it occurs on a surface of a component, system, or plant performing a defined and useful function and that.
A two-dimensional mathematical model was developed to predict the deposit formation from hydrocarbon vapor products in a straight tube with either constant and uniform wall heat flux or constant and uniform outside wall temperature, assuming physical condensation as the mechanism.
A single condensable pseudo-component is modeled to transport, condense, and form the deposit layer on. An experimental program was conducted to study deposit formation in hydrocarbon fuels under flow conditions that exist in high-pressure, rocket engine cooling systems.
A high pressure fuel coking test apparatus was designed and developed and was used to evaluate thermal decomposition (coking) limits and carbon deposition rates in heated copper.Heat Transfer15 (2), – nally, the formation of solid deposits inside instruments can cause systematic errors that are difficult to detect.
How- deposition behavior of hydrocarbon rocket fuels. In 41st Aerospace Sciences Meeting and Exhibit, Reno, NV, Rates of oxidation and gum formation for six hydrocarbons, three jet-turbine fuels and three diesel fuels have been measured at C in the presence of t-Bu2O2 tert-butyl-peroxide as initiator.
Four of six fuels oxidize faster at C than in previous work at C with initiator.