Measurements of Pulverized Coal Concentration in Pneumatic Conveyer Using Beta-emitting Isotopes
نویسندگان
چکیده
منابع مشابه
Concurrent measurement of temperature and soot concentration of pulverized coal flames
• To develop a prototype optical instrumentation system capable of measuring the distributions and fluctuations of temperature and soot concentration of pulverised coal flames. • To evaluate the performance of the system on a 0.5MWth combustion test facility at Innogy plc over a range of combustion conditions. • To establish quantitative relationships between the flame temperature and soot conc...
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A semiempirical model has been developed for predicting coal-derived soot. The main feature of the model is a transport equation for soot mass fraction. Tar prediction options include either an empirical or a transport equation approach, which directly impacts the source term for soot formation. Also, the number of soot particles per unit mass of gas may be calculated using either a transport e...
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We describe behavior of the air-coal mixture using the Navier–Stokes equations for gas and particle phases, accompanied by a turbulence model. The undergoing chemical reactions are described by the Arrhenian kinetics (reaction rate proportional to exp ` − E RT ́ , where T is temperature). We also consider the heat transfer via conduction and radiation. Moreover we use improved turbulence-chemist...
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ژورنال
عنوان ژورنال: RADIOISOTOPES
سال: 1962
ISSN: 1884-4111,0033-8303
DOI: 10.3769/radioisotopes.11.16