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- The impulse reaction turbine has its driving force A. as an impulsive force B. as a reaction force C. partly as an impulsive force and partly as a reaction force D. none of the aboveIf the BMW Hydrogen 7 consumes an average of 13.7 L/100 km when burning gasoline and 50 L/100 km when burning liquid hydrogen, show that the energy efficiency is very nearly the same for the both fuels.Commercially available large wind turbines have blade span diameters larger than 100 m and generate over 3 MW of electric power at peak design conditions. Consider a wind turbine with a 75-m blade span subjected to 25-km/h steady winds. If the combined turbine–generator efficiency of the wind turbine is 32 percent, determine (a) the power generated by the turbine and (b) the horizontal force exerted by the wind on the supporting mast of the turbine. Take the density of air to be 1.25 kg/m3, and disregard frictional effects on mast.
- Write a Reaction Paper on this phenomenon." The Impact of the Pandemic to the Career Choice of Students in Pursuing Aviation Related Courses. 250 words.How can you define impulsive force in terms of momentum.Q6) (a) Two sites are being considered for wind power generation. In the first site, the wind blows steadily at 7 m/s for 3000 hours per year, whereas in the second site the wind blows at 10 m/s for 2000 hours per year. Assuming the wind velocity is negligible at other times for simplicity; determine which a better site is for wind power generation. Hint: Note that the mass flow rate of air is proportional to wind velocity. (Take the density of air to be ? = 1.25 kg/m3).
- Hot gas enters the turbine at a pressure of 600kPa and a temperature of 1200K at a speed of 60m / s and exits at a pressure of 300kPa and a speed of 70m / s with a cross-sectional area of 0.125m ^ 2. Assume isotropic and constant flow and hot gas as a complete gas with a molar mass of 25kg / kmol and γ = 1.35 turbine power.What is the recoil velocity of a 4.00 kg rifle which fires a 5.00 g bullet with amuzzle velocity of 650 m/s? The rifle and bullet are initially at rest.Water vapor saturated at 150 degrees Celsius (h = 2745.9 kj / kg) flows at an altitude of z = 10 meters and at a velocity of V = 50 m / s. Calculate the total energy of water vapor relative to the ground as J / kg.
- Steam enters a turbine stage with an enthalpy of 3628 kJ/kg at 70 m/s and leave the same stage with an enthalpy of 2846 kj/kg and a velocity of 124 m/s. Calculate the work done by the steam. (Show Illustration)Consider a turbojet powered airplane flying at a standard altitude of 8.5 km at a velocity of 108 m/s. The turbojet engine itself has inlet and exit areas of 2.8 m2 and 1.2 m2, respectively. The velocity and pressure of the exhaust gas at the exit are 186 m/s and 75000 Pa, respectively. Calculate the thrust of the turbojet.A wind turbine has a blade length of 30 m. In a given day, average speed of wind for 5 hours is 9 m/s, average speed of wind for another 9 hours is 11 m/s and wind speed is not sufficient to rotate wind turbine for remaining time in a day. Take Air density p = 1.23 kg/m. Determine the following: a) Maximum possible power output of wind turbine for 6 hours? b) Maximum possible power output of wind turbine for 10 hours? Maximum possible energy output of turbine in a given day?