Coefficients agglomerate

Fig. 33 Friction coefficient (/ ) as a function of (a) tan delta at 25°C, (b) hardness, and (c) mean agglomerate size. Squares indicate PTFE-EPDM composites containing nonmodified PTFE and circles modified PTFE...

Collecting information and its processing will convert them in data. So, data represent agglomerated information, which are partially or finally processed. Examples of data can be found as a parameter, which describe evaluated information to be used for the specific purpose. In this respect the average inlet temperature of cooling water in the condenser is data obtained by the averaging procedure adapted for this purpose. Also heat transfer coefficient used in the design of condenser is the data obtained by the experimental procedure for the heat transfer evaluation. 

The macro-dispersion of the fillers can be determined by light-microscopic techniques with computer-assisted image processing on glazed cuttings of the vulcanized samples. At least five picture details have to be evaluated for each specimen. The dispersion coefficient D is calculated from the ratio of non-dispersed filler agglomerates and the volume fracture of the filler in the composites in accordance with ASTM D2663. 

Turbulent agglomeration. Far turbulent agglomeration two cases should be considered. First, if the inertia of the aerosol particles is approximately the same as that of the medium, the particles will move about with the same velocities as associated air parcels and can be characterized by a turbulence or eddy diffusion coefficient DT. This coefficient can have a value 104 to 106 times greater than aerosol diffusion coefficients. Turbulent agglomeration processes can be treated in a manner similar to conventional coagulation except that the larger diffusion coefficients are used. 

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