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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- Why would a pump experience cavitation?Are the following statements true or false? a. A pump does positive work on a fluid that flows in a pipe and through a pump. b. A turbine does positive work on a fluid. c. An impeller in a mixing tank does negative work.The turbine depends mainly on the fluid kinetic energy to produce power Select one: True O False
- 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/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=0.92
- 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/m1.In the cylinder of an air motor, the compressed air at the beginning of an expansion cycle has an internal energy of 500 kJ/kg and after expansion an internal energy of 150 kJ/kg. Calculate the heat flow from or to the system, when the work done by the air during expansion is 200 kJ/kg 2. The heat loss in a certain non-flow process is 785 kJ. The internal energy increases by 522 kJ. How much work is being done? 3. In the compression stroke of an internal combustion engine the heat rejected to the cooling water is 45 kJ/kg and the work input is 90 kJ/kg. Calculate the change in specific internal energy of the working fluid stating whether it is a gain or a loss. 4.True or flase. Heat is always a product when energy is expended to complete work
- 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