I need handwritten otherwise I'll dislike A two-bladed horizontal axis wind generator has a 30 m blade length. At an 8.8 m/s wind speed, this particular turbine generates 421 kW with a 35% efficiency (i.e., Cp = 0.35). What is the most power a hypothetical turbine could generate at this wind speed? Assume that the density of air is 1.25 kg per cubic meter.

Estimate the amount of power generated by a wind turbine having a powercoefficient of 0.37 given the annual average wind speed:Rotor diameter = 125 mCenter of rotor at an elevation 160 m above the surface level.Location: Oklahoma City, OK

4. A pump has a displacement volume of 6in³. It delivers 24gpm at 1000rpm and 1000psi. If the prime mover input torque is 1100in.lb, (a) What is the overall efficiency of the pump? (b) What is the theoretical torque required to operate the pump?

Wind at standard atmospheric pressure and 15°C temperature has a velocity of 20 m/s. The turbine has a diameter of 60 m and its operating speed is 50 rpm at maximum power coefficient (take CP=0.593). Calculate: a. The total power density in the wind stream (kW/m2) b. The maximum power density assuming overall efficiency = 40% c. The total power produced in kW assuming overall efficiency = 40%

2. A wind turbine has the maximum power output at the rated speed of 12 m/s and a rotor diameter of 82 meters. The cut-in and cut-out speeds for this type of wind turbine are 4 m/s and 23 m/s, respectively. The table below shows the annual wind data near a potential site for setting up a wind farm using this type of wind turbine and the power coefficient of the wind turbine at the specific wind speed. The air density is 1.22 kg/m³. Wind speed (m/s) Power coefficient 7 Hours 1190 5 0.25 3000 10 0.5 2400 15 0.25 1700 20 0.1 400 25 50 30 20 (a). What is the maximum power output of this wind turbine, assuming Betz limit? (b). What is the average power output if the wind turbine is installed at this site?. (c). What is the capacity factor of the wind turbine at this site? (d). If a wind farm consisting of 100 such wind turbines is built at the site, how much energy does this wind farm generate in a year (in the unit of kWh)? (e). Is this a good site for using this particular type of wind…

3. A 90% efficient Francis turbine running at 100 rpm discharges 6m * 3/s of water. The inner runner radius is 1.8 m and the outer periphery of the wheel has a radius of 2.5 m. The blade height is 50 cm. The blade angle beta_{1} is 80 degrees and beta_{2} is 160 degrees Find the vane angle, torque, and the power from the turbine

A pump delivers 1500 L/min of water at 20°C against apressure rise of 270 kPa. Kinetic and potential energychanges are negligible. If the driving motor supplies 9 kW,what is the overall efficiency?

The power output versus velocity profile for a wind turbine is shown in the figure below. Assume the rotor diameter is 80 meters, the air density is 1.22 kg/m3, the cut-in speed is 4 m/s, the rated speed is 13 m/s and the corresponding rated (i.e., peak) power output is 1500 kW. Calculate the power coefficient when the wind turbine is operating at wind speed of 5 m/s, 10 m/s and 13 m/s.

A pump impeller rotating at 1400 rpm has an outside radius of 21 cm, the vane outlet angle β2 is 158° and the radial velocity at the outlet Cr2 is 4 m/s. Assuming radial flow at inlet, draw the theoretical outlet velocity diagram and calculate the various velocities and angles(d)calculate the water horsepower.

Two electric motors are being considered to drive a centrifugal pump. Each motor is capable of delivering 90 horsepower (output) to the pumping operation. It is expected that the motors will be in use 2,000 hours per year and the MARR = 5% per year. (1 hp = 0.746 kW) a. If electricity costs $X per kilowatt-hour, calculate the annual cost of electrical power for each motor b. What cost of electricity ($/kWh) makes the two pumps breakeven (i.e. have the same equivalent annual cost)? Assume repeatability and MVs = $0. c. Choose the graph to illustrate your answer to Part (b). d. Which motor should be selected? Click the icon to view the datatable for the additional information about two alternatives. Click the icon to view the interest and annuity table for discrete compounding when the MARR is 5% per year. a. The annual cost of electrical power for Motor A is $( XX). (Round to two decimal places.)