Solids handling systems and dryers
Alireza Bahadori PhD, in Essentials of Oil and Gas Utilities, 2016
۱۰٫۹٫۲٫۲ Critical moisture content
The critical moisture content is the average material moisture content at which
the drying rate begins to decline. A prototype drying test should be conducted
to determine the critical moisture content. In Fig. 10.2, point B represents the
constant-rate termination and marks the instant when the liquid water on the
surface is insufficient to maintain a continuous film covering the entire drying
area. The critical point (B) occurs when the superficial moisture has evaporated. In
porous solids point B of Fig. 10.2 is reached when the rate of evaporation becomes
the same as obtained by the wet-bulb evaporative process.
Critical Moisture Content
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