Material balance drier

An overall material balance across a fluidized bed drier may be written... 

B. Measure gaseous emissions. To arrive at an accurate material balance some quanhficahon of gaseous emissions associated with the process is necessary. For example, a tea drier exhaust may carry line particles of tea dust. Measurement in such cases calls for inshuments such as thimble probe dry gas meter-vacuum pump assembly. In many instances, gaseous emissions carry some amount of hazardous materials also (like VOCs). Expert assistance may be needed to determine the material/product loss through gaseous emissions. 

Figure 4.4 Fluidized bed drier material and enthalpy balance.

Ftgine 2X1 Material and enthalpy balances, continuous drier. 

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