167
167
Oct 22, 2012
10/12
by
Mackay, Donald R.
texts
eye 167
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A recent development in the retail distribution of fuel oil to individual residences and to mobile homes involves the use of small, slow-flow meters.A technical investigation was conducted by Office of Weights and Measures to develop testing equipment and
Topics: Flow meters., Liquid fuels.
3
3.0
texts
eye 3
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257 p. : 27 cm
Topics: Biomass energy, Liquid fuels
3
3.0
texts
eye 3
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ix, 341 pages : 24 cm
Topics: Uden, Peter C., 1939-, Liquid fuels -- Congresses, Combustibles liquides -- Congrès, Liquid fuels
786
786
Mar 18, 2008
03/08
by
Donath, Eduard, 1848- [from old catalog]; Gröger, Adolf, 1868-1918, [from old catalog] joint author
texts
eye 786
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Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topic: Liquid fuels. [from old catalog]
Source: http://books.google.com/books?id=jXI3AAAAMAAJ&oe=UTF-8
206 p
Topics: Liquid fuels, Petroleum as fuel
"Projects supported in part by the Alberta/Canada Energy Resources Research Fund"
Topics: Coal liquefaction, Liquid fuels, Hydrocarbons
3
3.0
texts
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ix, 341 pages : 24 cm
Topics: Uden, Peter C., 1939-, Liquid fuels -- Congresses, Combustibles liquides -- Congrès, Liquid...
2
2.0
May 19, 2021
05/21
by
Perrini, Edward M
texts
eye 2
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comment 0
x, 307 p. : 25 cm
Topics: Liquid fuels -- Patents, Shale oils -- Patents
283
283
texts
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A method for fabricating a piezoelectric macro-fiber composite actuator comprises providing a piezoelectric material that has two sides and attaching one side upon an adhesive backing sheet. The method further comprises slicing the piezoelectric material to provide a plurality of piezoelectric fibers in juxtaposition. A conductive film is then adhesively bonded to the other side of the piezoelectric material, and the adhesive backing sheet is removed. The conductive film has first and second...
Topics: COMBUSTION, DROPS (LIQUIDS), LIQUID FUELS, MATHEMATICAL MODELS, DRAG
88
88
texts
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http://uf.catalog.fcla.edu/uf.jsp?st=UF004950801&ix=nu&I=0&V=D
Topics: Liquid fuels, Gas appliances--Law and legislation--United States.
123
123
Jan 5, 2011
01/11
by
United States.: National Recovery Administration
texts
eye 123
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http://uf.catalog.fcla.edu/uf.jsp?st=UF004952406&ix=nu&I=0&V=D
Topics: Liquid fuels, Gas appliances--Law and legislation--United States.
California Digital Library
776
776
Jun 28, 2007
06/07
by
United States. Bureau of Steam Engineering. "Hohenstein Boiler" Board; United States. Naval liquid fuel board
texts
eye 776
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107 p
Topics: Steam-boilers, Marine -- Testing, Hohenstein water tube boiler, Liquid fuels -- Testing
201
201
Jul 12, 2010
07/10
by
NON
texts
eye 201
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No Abstract Available
Topics: FLASHBACK, LIQUID FUELS, SPRAY CHARACTERISTICS, BOUNDARY LAYERS, FLAMES, JET ENGINE FUELS
5
5.0
Aug 25, 2021
08/21
by
Ranney, Maurice William, 1934-
texts
eye 5
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xii, 429 p. : 25 cm
Topics: Liquid fuels -- Patents, Shale oils -- Patents, Oil-shales -- Patents, Oil sands -- Patents
Topics: Legislative histories, Liquid fuels, Synthetic fuels, Agriculture -- Research, Coal mines and mining
208
208
May 31, 2011
05/11
by
Corban, Robert R
texts
eye 208
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The International Space Station's (ISS's) Fluids and Combustion Facility (FCF) is in the process of final design and development activities to accommodate a wide range of experiments in the fields of combustion science and fluid physics. The FCF is being designed to provide potential experiments with well defined interfaces that can meet the experimenters requirements, provide the flexibility for on-orbit reconfiguration, and provide the maximum capability within the ISS resources and...
Topics: DEFECTS, DEGRADATION, FUEL SYSTEMS, INSPECTION, LIQUID FUELS, THERMOGRAPHY, CRYOGENICS, INCLUSIONS,...
480
480
May 6, 2010
05/10
by
Strahle, W. C
texts
eye 480
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Unsteady burning of liquid fuel droplets and periodic solutions of fuel injection processes
Topics: COMBUSTION, DROPS (LIQUIDS), FUEL INJECTION, LIQUID FUELS, PROPELLANTS, COMBUSTION, FUEL INJECTION,...
New fuel cell elements for use in liquid feed fuel cells are provided. The elements including biplates and endplates are low in cost, light in weight, and allow high efficiency operation. Electrically conductive elements are also a part of the fuel cell elements.
Topics: NASA Technical Reports Server (NTRS), FUEL CELLS, LIQUID FUELS, LOW COST, PATENTS, Kindler, Andrew...
4
4.0
texts
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185 p. : 23 cm
Topics: Energy crops industry -- America, Energy crops -- Economic aspects -- America, Energy crops --...
446
446
Sep 20, 2010
09/10
by
Goldstein, Howard E
texts
eye 446
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The topics addressed are history of reusable external insulation (RSI), and examples of shuttle RSI development challenges, which includes: (1) manufacturing of raw materials, such as fibers, coating components; (2) design of tile planform size, strain isolation, and gap heating; (3) insulation, such as bonding, bond verification, tolerances, and quality control; and (4) operation, such as durability, and water proofing.
Topics: COMBUSTION CHAMBERS, GAS MIXTURES, DROP TOWERS, DROPS (LIQUIDS), FLAMES, FUEL COMBUSTION, LIQUID...
352
352
May 30, 2010
05/10
by
Ivanov, V. M.; Nefedov, P. I
texts
eye 352
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Combustion process of water and liquid fuel emulsion in internal combustion engine
Topics: COMBUSTION, INTERNAL COMBUSTION ENGINE, WATER, EMULSIONS, FUEL COMBUSTION, INTERNAL COMBUSTION...
New fuel cell components for use in liquid feed fuel cell systems are provided. The components include biplates and endplates, having a hydrophilic surface and allow high efficiency operation. Conductive elements and a wicking device also form a part of the fuel cell components of the invention.
Topics: NASA Technical Reports Server (NTRS), FEED SYSTEMS, FUEL CELLS, LIQUID FUELS, WATER, PATENTS,...
Various techniques have been applied to deploying individual droplets for many applications, such as the study of the combustion of liquid fuels. Isolated droplet studies are useful in that they allow phenomena to be studied under well-controlled and simplified conditions. A high-voltage droplet dispenser has been developed that is extremely effective in dispensing a wide range of droplets. The dispenser is quite unique in that it utilizes a droplet bias voltage, as well as an ionization pulse,...
Topics: NASA Technical Reports Server (NTRS), DISPENSERS, ELECTRIC POTENTIAL, DROPS (LIQUIDS), COMBUSTION,...
We propose a conceptual study of prototype strained hydrocarbon molecules as high energy density additives for hybrid rocket fuels to boost the performance of these rockets without compromising safety and reliability. Use of these additives could extend the range of applications for which hybrid rockets become an attractive alternative to conventional solid or liquid fuel rockets. The objectives of the study were to confirm and quantify the high enthalpy of these strained molecules and to...
Topics: NASA Technical Reports Server (NTRS), LIQUID FUELS, CHEMICAL PROPERTIES, ADDITIVES, HYDROCARBONS,...
One of the most complex processes involved in the combustion ot liquid fuels is the formation of soot. A well characterized flow field and simplified flame structure can improve considerably the understanding of soot formation processes. The simplest flame shape to analyze for a droplet is spherical with its associated one-dimensional flow field. It is a fundamental limit and the oldest and most often analyzed configuration of droplet combustion. Spherical symmetry in the droplet burning...
Topics: NASA Technical Reports Server (NTRS), SOOT, FUEL COMBUSTION, MICROGRAVITY, LIQUID FUELS, SYMMETRY,...
295
295
Jun 12, 2011
06/11
by
Fikes, Richar
texts
eye 295
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This project was co-led by Dr. Sheila McIlraith and Prof. Richard Fikes. Substantial research results and published papers describing those results were produced in multiple technology areas, including the following: 1) Monitoring a Complex Physical System using a Hybrid Dynamic Bayes Net; 2) A Formal Theory of Testing for Dynamical Systems; 3) Diagnosing Hybrid Systems Using a Bayesian Model Selection Approach.
Topics: HYDROCARBON FUELS, COPPER, PIPES (TUBES), STAINLESS STEELS, SULFUR, FUEL TESTS, THERMAL STABILITY,...
The combustion of liquid fuels is a major source of energy in the world today, and the majority of these fuels are burned in the form of a spray. This droplet combustion project at the NASA Glenn Research Center has the overall goal of providing a better understanding of spray combustion by extending existing studies of single droplets to a regime where droplet interactions are important (as occurs in a practical spray). The Combustion of Interacting Droplet Arrays is a collaborative effort...
Topics: NASA Technical Reports Server (NTRS), LIQUID FUELS, DROPS (LIQUIDS), FUEL COMBUSTION, QUARTZ,...
The accurate determination of trace metals and fuels is an important requirement in much of the research into and development of alternative fuels for aerospace applications. Recognizing the detrimental effects of certain metals on fuel performance and fuel systems at the part per million and in some cases part per billion levels requires improved accuracy in determining these low concentration elements. Accurate analyses are also required to ensure interchangeability of analysis results...
Topics: NASA Technical Reports Server (NTRS), AEROSPACE VEHICLES, CONTAMINANTS, LIQUID FUELS, TRACE...
463
463
May 23, 2011
05/11
by
Foster, Carlton L.; Tinker, Michael L.; Nurre, Gerald S.; Till, William A
texts
eye 463
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The investigation of the vibrational disturbances of the Hubble Space Telescope that were discovered soon after deployment in orbit is described in detail. It was found that the disturbances were particularly evident during orbital day-night crossings, and that the magnitude of the disturbances was considerably larger than the design jitter requirement. This paper describes the process by which the vibrations were characterized and isolated to a particular mechanism. The analysis of the flight...
Topics: TEMPERATURE DISTRIBUTION, LIQUID FUELS, REFRACTIVITY, SENSITIVITY, SURFACE TEMPERATURE, FLAME...
The NASA Nebraska Space Grant (NSGC) & EPSCoR programs have continued their effort to support outstanding research endeavors by funding the Numerical Simulation of the Combustion of Fuel Droplets study at the University of Nebraska at Lincoln (UNL). This team of researchers has developed a transient numerical model to study the combustion of suspended and moving droplets. The engines that propel missiles, jets, and many other devices are dependent upon combustion. Therefore, data concerning...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION, DROPS (LIQUIDS), LIQUID FUELS, MATHEMATICAL...
A proposed gas strut system would separate a liquid-fueled second rocket stage from a solid-fueled first stage using an array of pre-charged struts. The strut would be a piston-and-cylinder mechanism containing a compressed gas. Adiabatic expansion of the gas would drive the extension of the strut. The strut is designed to produce a force-versus-time profile, chosen to prevent agitation of the liquid fuel, in which the force would increase from an initial low value to a peak value, then decay...
Topics: NASA Technical Reports Server (NTRS), GAS FLOW, STRUTS, FLOW CHAMBERS, LIQUID FUELS, LOW PRESSURE,...
The combustion of liquid fuels is a major source of energy in the world today, and the majority of these fuels are burned in the form of a spray. The research at the NASA Glenn Research Center in droplet combustion has the overall goal of providing a better understanding of spray combustion by studying the smallest element in a spray, the single droplet. The Bi-Component Droplet Combustion Experiment (BCDCE) extends the work at Glenn from pure, or single-component, fuels to an idealized liquid...
Topics: NASA Technical Reports Server (NTRS), DROPS (LIQUIDS), LIQUID FUELS, FUEL COMBUSTION, SPACEBORNE...
A low-emissions high-pressure multi-fuel burner includes a fuel inlet, for receiving a fuel, an oxidizer inlet, for receiving an oxidizer gas, an injector plate, having a plurality of nozzles that are aligned with premix face of the injector plate, the plurality of nozzles in communication with the fuel and oxidizer inlets and each nozzle providing flow for one of the fuel and the oxidizer gas and an impingement-cooled face, parallel to the premix face of the injector plate and forming a...
Topics: NASA Technical Reports Server (NTRS), PREMIXING, GAS INJECTION, COMBUSTION, LIQUID FUELS,...
A study was undertaken to determine the effect of boundary layers on autoignition and flashback for premixed Jet-A fuel in a unique high-pressure windowed test facility. A plate was placed in the center of the fuel-air stream to establish a boundary layer. Four experimental configurations were tested: a 24.5-cm-long plate with either a pointed leading edge, a rounded edge or an edge with a 0.317-cm step, or the duct without the plate. Experiments at an equivalence ratio ranging from 0.4 to 0.9...
Topics: NASA Technical Reports Server (NTRS), FLASHBACK, LIQUID FUELS, SPRAY CHARACTERISTICS, BOUNDARY...
A three-dimensional unsteady reactive Navier-Stokes code is developed to study the ignition and flame spread above liquid fuels initially below the flashpoint temperature. Opposed air flow to the flame spread due to forced and/or natural convection is considered. Pools of finite width and length are studied in air channels of prescribed height and width. Three-dimensional effects of the flame front near the edge of the pool are captured in the computation. The formation of a recirculation zone...
Topics: NASA Technical Reports Server (NTRS), FLAME PROPAGATION, IGNITION, FUEL COMBUSTION, COMPUTERIZED...
A major portion of the energy produced in the world today comes from the combustion or burning of liquid hydrocarbon fuels in the form of droplets. However, despite vigorous scientific examinations for over a century, researchers still lack a full understanding of many fundamental combustion processes of liquid fuels. Understanding how these fuel droplets ignite, spread, and extinguish themselves will help us develop more efficient ways of energy production and propulsion, as well as help us...
Topics: NASA Technical Reports Server (NTRS), DROPS (LIQUIDS), COMBUSTION PHYSICS, MICROGRAVITY, LIQUID...
Both of the shuttle pads have one of these large liquid hydrogen tanks and the Shuttle program is currently using both pads. However, just recently, there has been increasing concerns over possible air leaks from the outside into the evacuated region. A method to detect leaks involving measuring the change in the boil-off rate of the liquid hydrogen in the tank.
Topics: NASA Technical Reports Server (NTRS), LEAKAGE, DEFECTS, PINHOLES, LIQUID HYDROGEN, CRYOGENIC TANKS,...
A combustion engine having no piston, a single cylinder, and a dual-action, that is applicable for solid and liquid fuels and propellants, and that functions according to the principle of annealing point ignition is presented. The invention uses environmentally benign amounts of fuel and propellants to produce gas and steam pressure, and to use a simple assembly with the lowest possible consumption and constant readiness for mixing and burning. The advantage over conventional combustion engines...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION CHAMBERS, COMBUSTION EFFICIENCY, FUEL COMBUSTION,...
NASA has recognized that the capability for remote resupply of space platform expendable fluids will help transition space utilization into a new era of operational efficiency and cost/effectiveness. The emerging Orbital Maneuvering System (OMV) in conjunction with an expendables resupply module will introduce the capability for fluid resupply enabling satellite lifetime extension at locations beyond the range of the Orbiter. This report summarizes a supplemental study to the original Phase A...
Topics: NASA Technical Reports Server (NTRS), LIQUID FUELS, PROPELLANT TRANSFER, REMOTE HANDLING, SERVICE...
An improved direct liquid-feed fuel cell having a solid membrane electrolyte for electrochemical reactions of an organic fuel. Improvements in interfacing of the catalyst layer and the membrane and activating catalyst materials are disclosed.
Topics: NASA Technical Reports Server (NTRS), ELECTROLYTES, FUEL CELLS, LIQUID FUELS, MANUFACTURING,...
A number of important effects were observed in the droplet size transition region in spray combustion systems. In this region, where the mechanism of flame propagation is transformed from diffusive to premixed dominated combustion, the following effects have been observed: (1) maxima in burning velocity; (2) extension of flammability limits; (3) minima in ignition energy; and (4) minima in NO(x) formation. Unfortunately, because of differences in experimental facilities and limitations in the...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION PHYSICS, FUEL SPRAYS, LIQUID FUELS, DROPS...
An understanding of liquid fuel behavior at superheat conditions is identified to be a topic of importance in the design of modern supersonic engines. As a part of the NASA's supersonics project office initiative on high altitude emissions, we have undertaken an effort to assess the accuracy of various existing CFD models used in the modeling of superheated sprays. As a part of this investigation, we have completed the implementation of a modeling approach into the national combustion code...
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, ATOMIZERS, SPRAY...
A detailed derivation of the equations governing the pressure in a generic liquid-fuel launch vehicle tank subjected to uniformly accelerated motion is presented. The equations obtained are then for the Space Shuttle Superlightweight Liquid-Oxygen Tank at approximately 70 seconds into flight. This generic derivation is applicable to any fuel tank in the form of a surface of revolution and should be useful in the design of future launch vehicles
Topics: NASA Technical Reports Server (NTRS), LIQUID OXYGEN, FUEL TANKS, STRUCTURAL DESIGN, LAUNCH...
Energy currently used in grain production, the effect of ethanol production on agricultural energy consumption, energy credits for ethanol by-products, and land availability and the potential for obtaining ethanol from grain are discussed. Dry milling, wet milling, sensitivity analysis, potential for reduced energy consumption are also discussed.
Topics: NASA Technical Reports Server (NTRS), AGRICULTURE, ENERGY CONSUMPTION, ETHYL ALCOHOL, GRAINS...
Improvements to fuel cells include introduction of the fuel as an aerosol of liquid fuel droplets suspended in a gas. The particle size of the liquid fuel droplets may be controlled for optimal fuel cell performance by selection of different aerosol generators or by separating droplets based upon size using a particle size conditioner.
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, DROPS (LIQUIDS), FUEL CELLS, LIQUID FUELS, METHYL...
Recent investigations have successfully demonstrated closed-form analytical solutions of spontaneous capillary flows in idealized cylindrical containers with interior corners. In this report, the theory is extended and applied to complex containers modeling spacecraft fuel tanks employing propellant management devices (PMDs). The specific problem investigated is one of spontaneous rewetting of a typical partially filled liquid fuel/cryogen tank with PMD after thrust resettling. The transients...
Topics: NASA Technical Reports Server (NTRS), PROPELLANT TANKS, CAPILLARY FLOW, LIQUID FUELS, FUEL TANKS,...
Forest residues, silvicultural biomass farms, agricultural residues, and methanol from cellulosic feedstocks are discussed.
Topics: NASA Technical Reports Server (NTRS), CELLULOSE, FORESTS, METHYL ALCOHOL, SILVICULTURE, BIOMASS,...
Liquid fuel combustion provides a major portion of the world's energy supply. In most practical combustion devices, liquid burns after being separated into a droplet spray. Essential to the design of efficient combustion systems is a knowledge of droplet combustion behavior. The microgravity environment aboard spacecraft provides an opportunity to investigate the complex interactions between the physical and chemical combustion processes involved in droplet combustion without the complications...
Topics: NASA Technical Reports Server (NTRS), SPACEBORNE EXPERIMENTS, TEST FACILITIES, COMBUSTION PHYSICS,...
An improved statistical model has been developed to describe the chemical composition of an evaporating multicomponent- liquid drop and of the mixture of gases surrounding the drop. The model is intended for use in computational simulations of the evaporation and combustion of sprayed liquid fuels, which are typically mixtures of as many as hundreds of different hydrocarbon compounds. The present statistical model is an approximation designed to afford results that are accurate enough to...
Topics: NASA Technical Reports Server (NTRS), CHEMICAL COMPOSITION, COMBUSTION, DROPS (LIQUIDS),...
This viewgraph presentation gives an overview of advances in the use of thermography to inspect composite tanks for liquid fuel propulsion systems. Details are given on the thermographic inspection system, thermographic analysis method (includes scan and defect map, method of inspection, and inclusions, ply wrinkle, and delamination defects), graphite composite cryogenic feedline (including method, image map, and deep/shallow inclusions and resin rich area defects), and material degradation...
Topics: NASA Technical Reports Server (NTRS), DEFECTS, DEGRADATION, FUEL SYSTEMS, INSPECTION, LIQUID FUELS,...
