Calculate energy available in 14 Kg wind, if the power available at the rotor of a wind turbine is 673 kW, diameter of the rotor, D = 88 m, Air density, p = 1.23 kg/m and Power Coefficient, C, = 0.59. %3D %3D %3D Answer:

A cart at rest starts to move from its initial position by an external force F. Find its acceleration in m/s^2 when it has moved 0.1 m when m=20 kg, F=100 N, k=1000 N/m. O 0.1 www 0.025 0.25 None of above

Q.5. Power (P) of an internal combustion engine can be calculated via formula given below: 2nNT %3D 60 Whereas; T and N is engine torque and engine speed, respectively. For T and N the values below were obtained during measurements: T=250 5 Nm N=2000 21 rpm Make error analysis with commonsense basis

A 0.41 m^3 air tank is pressurized to 5.17 MPa. When the temperature reaches -13deg C, calculate the air mass in kg.   a.76.3 b.28.4 c.69.3 d.32.0

1. Use only the Steam Table to answer this Item. A boiler (heat exchanger which operates under constant pressure process) produces saturated steam at 5 Mpaa converting all liquid from a feedwater pump with water temperature at 40 deg C and pressure = 5 Mpaa. For a steam flow rate of 10.69230 kg per second, find/draw the 2. a) PV and TS Diagrams on solution sheet 3. b) Work.

5.7 In a continuous agitation heating tank, w=wi=200lb/min, Cp and density are constant, the volume of the heating tank V=1.63ft^3, the specific heat of the liquid is 0.32Btu/(lbF), and the density is 62.4lb/ft^3 am. The heat input Q from the heater is 1680 Btu/min, and the inflow temperature is maintained at 80F. (a) Find the response when the inlet temperature suddenly decreases to 65F.

1 The following observations are recorded during a test on a four-stroke petro engine, F.C = 25cc of fuel in 10 sec, speed of the engine is 2600 rpm, B.P = 22 kW, Qair 0.00134 m, piston diameter 90 mm, density of the fuel = 0.85gm/cc , compression ratio = 7.5, CV of fuel = 42000KJ/Kg, room temperature = 24 °C %3D = 140mm, stroke length = %3D %3D %3D 2 A six-cylinder 4-stroke cycle petrol engine is to be designed to develop 250 kW of (b.p) at 2200 rpm the stroke / bore ratio is to be 1.3:1. Assuming nm =80% and an indicated mean effective pressure of 9.5 bar, determine the required bore and stroke. If the compression ratio of the engine is to be 7.5 to 1, determine consumption of petrol in kg/h and in kg/bp.hr. Take the ratio of the indicated thermal efficiency of the engine to that of the constant volume air standard cycle as 0.65 and the calorific value of the petrol as; 44770KJ/kg.

1. An 8-cylinder, 4-stroke diesel engine was given a test for 30 minutes. The test results are as follows: Generator Rated Capacity 950 hp 91% Electrical efficiency Fuel quantity Fuel temp Air quantity Atmospheric temperature Exhaust gas temperature Cooling water quantity inlet temperature 30 gal 77 F with SG = 0.922 88600 ft³ 65 F 750 F 18000 ft³ 95 F outlet temperature 115 F Conduct an engine heat balance based on the above data.

answer questions d e and f only

Calculate for Period Cash Flow, PV Year 1, r=8%, Project Net Present Value (NPV) based on the provided.