5.2 Batch Stirring Tank Reactor( BSTR) 52.1ca|cu| ation of the reaction time“t” For BSTR, Calculation of mass balance The rate of converted The accumulation components r rate of components rrS 1 dN yn at (5-5) R Effective volume in the reactor Quantity of substrate, mol5.2 Batch Stirring Tank Reactor( BSTR ) 5.2.1 Calculation of the reaction time “ t ” For BSTR， Calculation of mass balance dt dN V r S R S = − dt dN V r s R s 1 = − VR − Ns − （5-5） Quantity of substrate，mol Effective volume in the reactor The rate of converted components rs = —The accumulation rate of components