A pump extracts the energy of a fluid, while a turbine delivers energy to the fluid. True or False
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A pump extracts the energy of a fluid, while a turbine delivers energy to the fluid.
True or False
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- 1. The mean effective pressure of an engine running at 300 rpm is 500 kPa. What is the indicatedpower if the engine has bore of 250 mm x 450 mm. Select the correct answer below: A. 110.5 kW B. 150 kW C. 200 kW D. 182. 2 kW 2. In a certain process, entering is 1500 KJ/kg and 150 m/s. If the energy leaving is 12000 Kj/kg/ Determine the velocity at exit. Select the correct answer below: A.) 145 m/s B. 1020 m/s C. 789 m/s D. 978 m/s3 Workout Problem Given: High-pressure Fan compressor High-pressure turbine High-pressure shaft Low-pressure shaft Low-pressure compressor Combustion Low-pressure Nozzle chamber turbine Total mass flow rate of air entering the engine Speed of air entering the engine Engine bypass ratio o (2.5 times more air passes through fan than core) Fan exit speed Core exit speed Find: Thrust of the engine. 300 kg/s 300 m/s 2.5 600 m/s 1,000 m/sIf you copy solution from another post or another website I will downvote your post and report your account for stealing.
- Task 1 Derive the non-flow and flow energy equations from first thermodynamic principles. Task 2 Apply the steady flow energy equation to nozzle, compressor, turbine, boiler, and mixing chamber. Task 3 A turbine powers an air compressor and a generator. The turbine is supplied with 25 kg/s of steam. The compressor is supplied with 15 kg/s of air. Given the following conditions as presented in the figure below determine the net power in kW to the generator. 98 kPa 12.5 MPa 295 K 500 C Air To the Steam kg/s generator 1MPA 620 K 10 kPa x=0.92The cutout wind speed denotes how fast the turbine can go before wind speeds get so fast. The maximum range of cutout wind speed (Vo)that seas' the wind power generation is: 3 < Vo < 5 m/s. 20 < Vo < 30 m/s. 200< Vo < 300 m/s None of the above.a.Which of the following appropriately describes the pumping energy efficiency when a pump is transferring water150 l/s (liters per second) with 1 bar pressure difference and the power consumption is 21 kW? 1.59 % 2.140kW/s 3.21kW /bar 4.39 Wh/m
- Q.22 Where is the jet of the pump located? Select one: A. AT WATER LEVEL B. AT GROUND LEVEL C. JUST ABOVE THE WATER LEVEL D. JUST BELOW THE WATER LEVEL30. Steam enters a turbine 80 lbs of steam per minute with an enthalpy of 1700 BTU/lb and velocity of 98 ft/s. It leaves the turbine at 1400 BTU/lb at 880 ft/s. The heat loss is 90,000 BTU/hr. Find the horsepower output of the turbine.11
- Problem 4: Consider the following schematic of a simple turbojet engine model that uses air as its working fluid. With the data given determine (D) the amount of power required by the compressor, and (E) the velocity of the exhaust stream at the exit of the system. Note: The variable rp is the compressor ratio defined to be the pressure of the compressor exit to the pressure of the compressor inlet. Assume that the compressor, turbine, and nozzle are all adiabatic and reversible. The Turbojet Engine 2 P = P; : 100 kPa Burner T,: 300 k 6: 12 : (200 K $/h が FHV = 43 KJ/g- frel トDetermine the output pressure of a compressor operating with the following data: a. Actual power required to drive the compressor is 20 kW. b. Overall efficiency of the compressor is 75%. c. Compressor delivers four standard m3/min. d. Compressor inlet pressure is 100 kPa abs.2. A centrifugal pump installation draws water from an underground well whose free surface is 50 m below ground level. Water is pump to a reservoir 6 m above ground. Suction pipe diameter is 150 mm and the discharge pipe diameter is 100 mm. The required capacity of the pump is 250 liter/sec. If the pump efficiency is 82%, determine the required brake power for the motor drive. a. brake power Answer : _______________ kW