Engineering, 21.02.2021 14:40, plssshelp
For a nozzle-duct system shown in Fig Q3, the nozzle is designed to produce a Mach number of 2.8 with y = 1.4, The inlet conditions are pos= 10 bar and T = 370 K. The duct is 8 diameters in length, but the duct friction factor is unknown. The receiver pressure is fixed at 3 bar and a normal shock has formed at the duct exit. (a) Determine the friction factor of the duct. (b) What is the total change in entropy for the system?β
Answers: 2
Engineering, 04.07.2019 18:20, cdyshaylia55
Water vapor initially at 10 bar and 400 Β°c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 Β°c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg
Answers: 2
Engineering, 04.07.2019 19:10, nayi2002
The short distance from the objective lens to the object causes problems at high magnification. which of the following is the most serious? a. cleaning the object surface b. positioning the object c. reflection from the object surface. d. illumination of the object
Answers: 1
For a nozzle-duct system shown in Fig Q3, the nozzle is designed to produce a Mach number of 2.8 wit...