Simplified Expression of the Heat Balance

A heat balance, taking into account all the terms explained above, can be established  

However, in most cases a simplified heat balance, which comprises the two first terms on the right-hand side of Equation 2.26, is sufficient for safety purposes. Let us consider a simplified heat balance, neglecting terms such as the heat input by the stirrer or heat losses. Then, the heat balance for a batch reactor can be written as 

For a reaction of order n rearranged to enhance the variation of temperature with time  

The term ------- is the inverse of the thermal time constant of a reactor (Section 

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