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Modified Deutsch equation

Use the Deutsch-Anderson equation to calculate the efficiency of the precipitator. Also, use the modified Deutsch equation with a range of exponents varying from 0.4 to 0.7 (in increments of 0.05) to calculate the efficiency of the electrostatic precipitator. [Pg.306]

The second exponent (in this, the so-called modified Deutsch equation) provides a more accurate prediction of performance at high-efficiency levels but can become too pessimistic in certain situations. Typical values of m range between 0.4 and 0.7, with 0.5 as the norm. This and the previous equation are employed in the solution that follows. [Pg.307]

Several investigators have attempted to modify the basic Deutsch equation so that it would more nearly describe precipitator performance. Cooperman ( A NewTheoiy of Precipitator Efficiency, Pap. 69-4, APCA meeting, New York, 1969) introduced correction fac tors for diffusional forces arising from variations in particle concentration along the precipitator length and also perpendiciilar to the collecting surface. Robinson [Atmos. Environ. 1(31 193 (1967)] derived an equation for collec tion efficiency in which two erosion or reentrainment terms are introduced. [Pg.1611]

Using the modified Deutsch-Anderson (DA) equation to obtain an expression for the efficiency in terms of the exponent m leads to... [Pg.308]

Since q, w, and A are all constant, the modified Deutsch-Anderson equation predicts that the efficiency does not change if the plate spacing is decreased to 9 in. [Pg.309]

A horizontal parallel-plate ESP consists of a single duct 24 ft high and 20 ft deep with an 11-in. plate-to-plate spacing. A collection efficiency and 88.2% is obtained with a flowrate of4200 acfm. The inlet loading is 2.82 gr/ft. Calculate the following using a modified form of the Deutsch-Anderson equation, with the exponent m = 0.5 (i.e., exponent on ( ) ... [Pg.308]

The drift velocity, w, for this system is found from the modified form of the Deutsch-Anderson equation ... [Pg.309]

The free energy of catenation cast in the modified Cates-Deutsch form in Equation (7.22) seems to be valid only for larger values of Re-... [Pg.224]

See other pages where Modified Deutsch equation is mentioned: [Pg.1228]    [Pg.1228]    [Pg.1227]    [Pg.308]    [Pg.1611]    [Pg.57]    [Pg.1433]    [Pg.1925]    [Pg.1915]    [Pg.1615]    [Pg.221]   
See also in sourсe #XX -- [ Pg.306 ]



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