Engineering, 26.07.2019 20:10, rose200215
An ideal gas with constant specific heats and cv=0.7 kj/kgk and r=0.3 kj/kgk is contained in a piston-cylinder device and undergoes a power cycle as follows: 1-2 isentropic compression from an initial temperature ti=20°c with a compression ratior=5. 2-3 constant pressure heat addition. 3-1 constant volume heat rejection a. sketch the p-v and t-s diagrams for the cycle b. determine the heat and work interactions for each process, in kj/kg c. determine the cycle thermal efficiency.
Answers: 1
Engineering, 04.07.2019 18:10, sarahgrindstaff123
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
Engineering, 04.07.2019 18:10, ijohnh14
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
An ideal gas with constant specific heats and cv=0.7 kj/kgk and r=0.3 kj/kgk is contained in a pisto...
Mathematics, 12.08.2020 06:01