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Showing 1 to 20 of 92 for “"Gas composition"”.
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Effect of processing and storage conditions upon canned apple sauce headspace gas composition
The relationships between headspace gases in canned apple sauce and storage time and temperature, food pH and consistency, and headspace vacuum and volume were studied. The apple sauce processing method used essentially duplicated commercial procedures. Canned apple sauce was stored at l00°F for 7 …
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Minimum miscibility pressure as a function of temperature and gas composition using the rising bubble apparatus
Includes bibliographical references (pages 145-151).
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A study of the high speed diesel engine exhaust with respect to gas composition and smoke density
A study of exhaust gas composition at various engine speeds, loads, and cooling water temperatures was made on an International Harvester UD-6 Diesel Engine. Simultaneously, smoke density was measured with a smokemeter, the principle of which was based on the obstruction of light. Exhaust gases …
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Effects of temperature and heating rate on off-gas composition and pyrene removal from an artifically-contaminated soil
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1995.
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A miniature, broadband acoustic spectrometer : design of a unified attenuation model, device development, and experimental performance
The attenuation of sound occurs in polyatomic gases due to both classical and nonclassical physics. Classical attenuation is dominated by viscous dissipation and irreversible heat conduction. Nonclassical attenuation arises from the thermal relaxation between internal and external degrees of …
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The effect of supercritical water on crude glycerin solution
… system for the production of hydrogen rich syngas. The effects of temperature, pressure, water-to-carbon molar ratio, reactor residence time, and glycerin-to-methanol weight ratio on the extent of carbon gasification and gas composition were explored. Based on the results, the extent and …
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Spirometer techniques for measuring molar composition in argon carbon dioxide mixtures
This paper examines a new technique for measuring gas composition through the use of a spirometer. A spirometer is high precision pressure transducer which measures the speed of sound in a gas through the emission and reception of ultrasonic pulses, commonly used in medicine to measure patient lung …
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Aspirating probes for measurement of mean concentration and fluctuating quantities in supersonic air/helium shear layer
… first probe is designed to measure local mean gas composition and is referred to as the mean concentration probe. This probe consists of a constant temperature hot-film sensor operating in a channel with a choked exit. The flow over the hot-fifm is influenced only by total temperature, total …
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Multiscale Simulation of Atmospheric Pressure Pulsed Discharges Used in Polymer Surface Functionalization
… model was developed to investigate the impact of gas flow on radical generation and surface treatment. Convective gas flow alters the relative abundance of reactive species in the discharge that affects the surface composition. Continuous surface processing was simulated, wherein radicals formed …
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Optimization study of incineration in a incinerator with a vertical radiation shaft.
… measurements, pressure measurements, flue gas composition analysis and determination of physical and chemical properties of Sheffield refuse. Several other miscellaneous measurements were also made to monitor the effect of variation of operating parameters on the performance characteristics …
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The effects of higher oxygenates on methanol synthesis
… Cu/ZnO/Al2O3 formulation. The effect of the feed gas on the behaviour of the higher oxygenates were also investigated by varying the feed gas composition.
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Hot-thermistor spirometry for the artificial ventilation of infants
… techniques and to predict the effect of gas composition changes on spirometer celebration. New electronic circuits were developed which greatly simplify the construction of temperature-compensated hot- thermistor anemometers and extend the dynamic range off low rates that can be measured.
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Modelling Gas Turbine Degradation
… of hot corrosion and related phenomenon in gas turbines using Reynolds-averaged Navier Stokes (RANS) computational fluid dynamics (CFD) simulations. Non-uniform distribution of gaseous species as a result of film coolant injection was observed on a simple single hole test case. RANS …
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ΚΑΤΑΛΥΤΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΧΗΜΙΚΩΝ ΟΞΕΙΔΙΩΝ ΤΟΥ ΣΙΔΗΡΟΥ ΚΑΘΑΡΩΝ ΚΑΙ ΜΙΚΤΩΝ ΣΤΗ ΜΕΤΑΤΡΟΠΗ ΤΟΥ ΜΟΝΟΞΕΙΔΙΟΥ ΤΟΥ ΑΝΘΡΑΚΑ ΤΟΥ ΥΔΡΑΕΡΙΟΥ
… A SPACE VELOCITY OF 2.800 L/(L.H) AND REACTING GAS COMPOSITION (CO:H2:H2O=1:1:4), IN THE TEMPERATURE REGION 350-410 C AND ATMOSPHERIC PRESSURE. THE CATALYST CONTAINING "12.5% AT.NI" (NI IN METAL ATOMS %) SHOWED EXTRAORDINARY HIGH ACTIVITY (WHICH WAS 4.3 TIMES THE ACTIVITY OF THE INDUSTRIAL …
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Decomposition of Carbon Dioxide in a Capacitively Coupled Radio Frequency Discharge
<p>Decomposition of CO<sub>2</sub> was studied in a capacitively coupled radio frequency discharge using Martian Simulant Gas mixture that contains 95% CO<sub>2</sub>. The discharge was operated at a gas pressure of 3 to 6 Torr and a discharge power density of less than 2.0 W/cm<sup>3</sup>. The …
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Direct liquefaction of coal with coal-derived solvents to produce precursors for carbon products
… under varying reaction conditions such as gas pressure, gas composition, and solvent-to-coal ratio. The products were separated by filtration and vacuum distillation to produce three fractions, the THF insolubles, pitch, and recycle solvent. The coal-alone conversions were calculated for …
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Untersuchungen zu den Eigenschaften der Anode der Festoxid-Brennstoffzelle (SOFC)
… to the transfer reaction, the low frequency to a gas diffusion inhibition along the gas supply channels. The degradation of the symmetrical anode cells, which has been observed in long-term experiments, is ascribed to a degradation of the electrolyte material, of the transfer reaction, of the …
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Upflow anaerobic sludge blanket reactors for treatment of wastewater from the brewery industry
… loading rate and influent pH suggest that gas composition and gas production appear to be the best on-line monitoring parameters to indicate changes in reactor conditions.
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Monitoring Erebus volcano's active lava lake; tools, techniques and observations
… characteristics, such as surface velocity, gas flux and gas composition, exhibit a pronounced pulsatory behaviour on a time-scale of ∼10 min. Focusing primarily on the analysis of infra-red (IR) imagery acquired from the crater rim, this dissertation considers how the periodic behaviour of …
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Modeling Of USS Gasification To Evaluate New Gasifier Design In Aspen Plus
<p>Evaluation of ultra-superheated-steam (USS) gasification efficiency of coals to produce hydrogen enriched syngas is the research motive of this joint project between the University of North Dakota and Ohio University. A new USS bubbling fuidized bed gasifier was built in Ohio and several tasks …
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