Chapter 6 Auxiliary Components for Hydraulic Systems 6.1.3 Calculation of parameters 1.Calculation for the charged gas volume o The volume of an accumulator is the charged gas volume for a bag accumulator p%”=p”=p2V” -Constant (6-1) (1)For the isothermal changes The involvement no change in temperature,and no internal energy changes occur in the gas.Take n=1,then △V 6-2) p.( Homepage List Upwards Dowrwards Return ExitChapter 6 Auxiliary Components for Hydraulic Systems 9 6.1.3 Calculation of parameters 1. Calculation for the charged gas volume V0 The volume of an accumulator is the charged gas volume for a bag accumulator 0 0 1 1 2 2 n n n p V p V p V = = ＝Constant （6-1） (1) For the isothermal changes The involvement no change in temperature, and no internal energy changes occur in the gas. Take n=1, then 0 0 1 2 ( ) 1 1 V V p p p  = − （6-2）