Drying equation

The assumptions involved in dris equation clearly do not accurately describe real gases in which the atoms or molecules interact widr one another, and occupy a finite volume in space the size of which is determined by the complexity and mass of the particles. The first successful attempt to improve on the ideal equation was that of van der Waals... 

An approximate, but sufficient, solution of dris equation for the thin tracer him experimental technique shows that the penetration curve has two components Ai, All and b being known constants. 

The common engineeringapplication of dris equation is to steady-flow heat transfer. 

In many, if not most of all pharmaceutical drying operations, the drying profiles are or may appear to be in the falling rate period. i.e., corresponding to segment C-D in (Figure 2A). In this case the slope k (Fig. 2B) is linear in W, so that the drying equation will be of the type In W = In Wq - ku where Wq is the moisture content at the critical point. 

Science teaching should cultivate students natural curiosity about the world around them. To foster this curiosity, students initial contact with science should be an animated, hands-on experience, not an introduction to the dry equations that experienced practitioners use to manipulate science in the abstract. The Partners for Terrific Science program was designed with the belief that if pre-college students understand how chemistry and the chemical industry touch their daily lives, they will find chemistry more relevant, exciting, and interesting. 

Berlin, R., Delage, P, and Boverie, S., Estimation of functions in drying equations. Drying TechnoL, 2(l) 45-59,1983. 

Equation 8.12 tends to overpredict the early stage and underpredict the later stage of drying. Equation 8.14 is an empirical modification of Equation 8.12 by introducing an exponent y [43]. It has been used most conunouly because most experimental data can be fitted very weU with the following equation ... 

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