How much power does it produce in units of kj-kg
An adiabatic gas turbine using helium has inlet conditions 5 MPa and 500°C and outlet conditions of 50 kPa and 100°C. How much power does it produce in units of kJ/kg? Neglect any changes in kinetic energy.
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Steam at 3 Mpa, 500C, enters an insulated turbine operating at steady state and exits at 0.3 Mpa. Determine the maximum power (rate of work) developed in kW/kg.
A window frame manufacturer is searching for ways to improve revenue from its triple- insulated sliding windows, sold primarily in the far northern areas of the United States.
A plate of stainless steel has a thickness of 3.0 cm and is initially uniform in temperature at 500C. The plate is suddenly exposed to a convection environment on both sides at 40C with h=150W/m^2*C. Calculate the times for the center and face te
Evaluating exergy at 8.5 cents per kW*h, determine the annual cost, in $/year, associated with the exergy destruction, assuming 8400 hours of operation annually.
A particle of mass m is subject to the delta-function potential V(x) = -alpha delta(x) with alpha > 0. Evaluate the uncertainty product alpha x alpha p for the hound state.
Given that the latent heat of water/steam is approximately 41,000 J/mol, at what pressure will water boil at 50 degress Celcius? hint: remember that at 1 atm water boils at 373 K. Also, assume that the latent heat is constant and that the volume o
The coefficient of friction between all contacting surfaces is 0.3. Calculate the minimum force F required to start C moving upward.
An automobile suspension involves both leaf springs with stiffness k and shock absorbers resist motion with a force -uv. The system is critically damped. If a car has mass 2000 kg and has shock absorbers with u = 2.5 x10^4 kg/s, how much should th
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