Transient Transient-not steady,dynamic,a function of time... Examples:startup or shutdown of turbines,compressors... Assumption:SS ©Mass balance dmev ∑m-∑m ↓ [〔()山-()血-（Σj血 -a0-a(）→ mev()-me(0)=∑n:-∑me 上游通大学 mi April 8,2018 2 SHANGHAI JLAO TONG UNIVERSITYApril 8, 2018 2 Transient Transient – not steady, dynamic, a function of time… • Examples: startup or shutdown of turbines, compressors… Assumption : SS Mass balance me