A stream of water strikes a stationary turbine blade, as the drawing illustrates. The incident water stream has a velocity of vo=+21 m/s, while the exiting stream has a velocity of vf=-21 m/s. The mass of water per second that strikes the blade is 27.2 kg/s. Find the magnitude of the average...
Steam enters a turbine at 3 mpa and 450 c, expands in a reversible adaibatic process, (KE and PE are negligible) and exhausts at 10 kpa. The power output of the turbine is 800 kW. What is the mass flow rate?
I did the problem but I don't know if the anwser is correct and wanted to check...
Hi All,
I am a solar thermal enthusiast seeking to try out a few things. I need some info on using car aircondition compressor as a pico steam turbine if it is possible. Links, suggestions and opinions are welcome.
Regards,
Solomon.
I wonder if anyone could shed some light or information about the subject I'm looking into.
How will wind turbines with varied amounts of blades perform in varied wind speeds. E.g. the less amount of blades you have the better a turbine will perform at higher wind speeds?
Any help on the...
I will start my junior year as a ME major in the fall, I currently am working for a power company on a co-op. I work with the Predictive Maintance department corporate so I am not at the plant all
the time but have a question about the turbine that might be more of a generator question.
If...
A steam turbine has an inlet of 2kg/s water at 1000kPa and 350C and velocity of 15m/s. The exit is at 100kPa, 100% quality and very low velocity. Find specific work and power produced.
I have done a lot of these problems but it usually says adiabatic or the inlet and exit temp is the same...
A liquid water turbine receives 2kg/s water at 2000kPa, 20C, and velocity of 15m/s. The exit is at 100kPa, 20C and very low velocity. Find specific work and power produced.
From my tables I get
hi=85.82 kJ/kg
he=84.03 kJ/kg
Energy equation reduces to:
\begin{array}{l}
h_i +...
hello,
there is a question bugging my head for quite some time..
why wind power plant has lesser turbine blades while the one in hydro power plant has more?...
is it due to the density of the fluid?
thanks
a mill requires 5000kW to operate at full capacity, produces 14tons of paper per hour, purchases electricty for $.10/kW*hr
There is a dam 10m high that supplies water to a turbine. the river can be used only if the flow is above 50 cubic ft/sec. efficiency of generator is 75%
how am i...
Wind blows at an average speed of 5m/s 10% of the time. If the efficienty is 45%, what is the radius of the wind turbine that would be needed to generate 571 W of electricity. density of air = 1.25 kg/m^3
The formula is Power = η(1/2*pi*r^2*ρ*v^3), where η is the efficiency, ρ the density, and...
I have a Thermo I problem:
Given: 80m diameter wind turbine rotating at 20rpm under steady wind conditions at an average wind velocity of 30kph. The eff of the system is 35%.
Need: Power generated
Assumptions (made by me):delta PE ~0; mass=constant; operating at Steady Sate; T~constant...
An alternator attached to a water turbine generates 35 Watts given 50 feet of head and 10 gallons per minute. Assuming that the efficiency of the alternator is 50%, is it possible for me to find the angular velocity from this information?
If so, how would I do it?
What is the most efficient shape of an air driven turbine?
I want to achieve the greatest possible torque with the lowest volume of air.
I hope I am posting this in the correct place. If not, any
links would be helpful. Thank you very much.