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Air enters a turbine operating at a steady state at 8 bar, 1400K and expands to 0.8 bar. This turbine is well insulated and kinetic and potential effects can be neglected. Assuming ideal gas behavior for the air, what is the maximum theoretical work that could be developed by the turbine in kJ per kg of air flow?
determine the rate of diffusion of cu in al at 300k using d do exp -edrt where do 0.15 cm2sec and ed 125 kjmole.
a damaged 1200 kg car is being towed by a truck the air drag friction and rolling resistance are negligible. determine
a building has a 10000 ft.sq interior office space served by one ahu with economizer function. the supply air flow is
Air undergoes a polytrophic process in a piston cyllendar assembly from P1=1 atm, T1=70 degrees F, P2=5 atm. Employing ideal gas model with constant specific heats at 80 degrees F determine the work and heat transfer per unit mass in Btu/ibm if n=1.3..
the piston-cylinder assembly shown in the figure is fitted with a linear spring. the spring constant is k 15 knm and
Hot, moist outside air passes over a cooling coil, from which it exits in a saturated state at p=14.7lbf/in^2 and T=65F. The air is then mixed adiabatically with room air at p=14.7lbf/in^2, T=75F, phi=25%.
The assembly shop of a manufacturer of large air conditioners for commercial and industrial buildings has numerous units at various stages of completion, most sitting unattended for lack of parts. As parts and subassemblies arrive from other departme..
a four foot diameter reel of wire pays out 250 feet of conductor wire in two minutes. what is the average angular
a solar-powered rankine cycle power plant uses 18.5 x 103 m2 of solar collectors. refrigerant-22 is used as the working
The motion of a particle in defined by the relation x = t3 - 15 t2 - 20, where ‘x' is expressed in metres and ‘t' in seconds. Determine the acceleration of the particle at t = 3 seconds.
the pilot of an airplane carrying a package of mail to a remote outpost wishes to release the package at the right
a steam turbine at steady state is operated at part load by throttling the steam to a lower pressure before it enters
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