Engineering, 07.03.2020 05:00, jessnolonger
An ideal gas initially at 600k and 10 bar undergoes a four-step mechanically reversible cycle in a closed system. In step 12, pressure decreases isothermally to 3 bar; in step 23, pressure decreases at contstant volume to 2 bar; in step 34, volume decreases at constant pressure; and in step 41, the gas returns adiabatically to its initial state. Take Cp = (7/2)R and Cv = (5/2)R.
(a) Sketch the cycle on a PV diagram.
(b) Determine (where unknown) both T and P for states 1, 2, 3, and 4.
(c) Calculate Q, W, DeltaU, and DeltaH for each step of the cycle.
Answers: 1
Engineering, 04.07.2019 18:10, anna22684
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10, soreese02
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
Answers: 2
Engineering, 04.07.2019 18:10, ayoismeisjjjjuan
Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges
Answers: 1
An ideal gas initially at 600k and 10 bar undergoes a four-step mechanically reversible cycle in a c...
Physics, 18.11.2020 04:00
Mathematics, 18.11.2020 04:00
Mathematics, 18.11.2020 04:00