Global ETD Search
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Showing 1 to 9 of 9 for “"flow rate measurement"”.
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Non-Invasive Flow Measurement Via Distributed Acoustic Sensing Utilizing Frequency Spectra Analysis of Wall Pressure Fluctuations
… sensing to noninvasively measure volumetric flow rate via multiple unique sensor styles. This work modifies previously used methods of flow detection via fiber optic acoustic sensors affixed onto the exterior body of a flow apparatus. Flow rate measurement methods for two unique sensor styles …
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Asymmetric flow measurement in space constrained cooling water ducts using a traversing probe
… research was to identity and recommend a type of flow measurement technique suitable for flow measurements in the CW ducts. After conducting a literature survey, the author restricted research to a local flow measuring technique as a result of physical constraints on site. In addition, the flow …
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Development of a test method to measure "in-use" emissions from stationary and portable diesel sources
A cost-effective, accurate and easy-to-use in-field test method was developed that would allow regulatory bodies, such as the California Air Resources Board (CARB) to determine in-use compliance with emission standards for newly manufactured portable and stationary engines. As emissions measured …
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Monitoring the Stability of Anaerobic Digestion Using a Novel On-line Bicarbonate Alkalinity Monitor
… The proposed method is based on a continuous flow rate measurement of carbon dioxide evolved from a continuous stream of sampled (<15cm3min-1 ) solution after saturation with gaseous C02 and subsequent acidification with excess acid. Measurement of bicarbonate in this way eliminates the …
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Methodology for characterization of representativeness uncertainty in performance indicator measurements of thermal and nuclear power plants
… uncertainty in performance indicator measurements in thermal and nuclear plants is presented. The representativeness uncertainty arises from the inherent heterogeneity or the variability of the quantity being measured or from the inadequacy of the physical models used to simulate the …
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Local instantaneous convective heat transfer characteristics from mechanical and supply pulsed radial reattaching nozzles
… gap height (0.05 and 0.13), non-dimensional flow guide height (0.8 and 1.16), mechanical pulsation rate (5 and 10 Hz), supply pulsation rate (10, 20, 30, and 40 Hz), phase angle (0° and 180°), and Reynolds number (1683 and 2366). Air was forced through a supply pulsation mechanism and then …
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Experimental Investigations of Internal Air-water Flows
… techniques to the study of gas-liquid pipe flows, with a focus on conditions occurring in header-feeder systems of nuclear reactors under different accident scenarios. Novel experimental techniques have been proposed for the identification of the flow regime and measurement of the flow rates …