Example 19.1 compressor work calculation Wey=? Determine: =1 bar Wev T =290K 1 Air 2 p2 7 bar > V=6 m/s compressor T2=450K Assumptions: A=0.1m2 V2 =2 m/s ·SS Ideal gas model Qev =-180 kJ/min ·△PE→0 Energy rate balance: 0=.-成-++-++ given =-（ given 上游充通大学 April 5,2018 5 SHANGHAI JIAO TONG UNIVERSITYApril 5, 2018 5 Example 19.1 compressor work calculation Determine: • Wcv Assumptions: • SS • Ideal gas model • ∆PE0 Energy rate balance: given given ? ?