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At a section where the diameter is 4 in, methane flows with the veloctiy of 50ft/s and a pressure of 85 psia. At a downstream section, where the diameter has increased to 6 in, the pressure is 45 psia. Assuming the flow to be isothermal, compute the heat transfer between the two locations
the beam ab is pin supported at a and supported by a cable BC. determine the resultant internal loadings acting on the cross section at points d and e.
air flows through a turbine airfoil passage in the shape of a converging-only nozzle with an exit cross-sectional area
u.s. productivity has improved noticeably in recent years averaging 4 to 5 percent per year while the u.s. economy grew
Determine (a) the velocity of the air at the duct inlet and (b) the temperature of the air at the exit.
qualitatively plot the following processes on p-v t-v and p-t diagrams. use an arrow sign pointing to the process
consider an air-standard otto cycle. what is the efficiency of the otto cycle if the compression ratio is 10 and the
The heat offusion of aluminum is 3.97 10^5 J/kg; the heat of fusion of mercury is 1.18 10^4. What is the effeciency of this engine?
a portable heater is placed inside a laboratory chamber to maintain the inside air temperature of the chamber at
The 60W fan of a central heating system is to circulate air through the ducts. The analysis of the flow shows that the fan needs to raise the pressure of the air by 50Pa to maintain flow. The fan is located in a horizontal flow section whose diameter..
steam enters a nozzle operating at steady state at 20 bar 280oc with a velocity of 80 ms. the exit pressure and
the rocket is traveling straight up at 100ms. its mass is 90000kg and the thrust of its engine is 2400kn. aerodynamic
a hand drill is used to drill a holbein a very hard material. because the bit is very dull it spins with out advancing.
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