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/sTask 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.
- True or flase. Heat is always a product when energy is expended to complete workDetermine 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.solve a,b, c and d please. In a detergent-making process, 1400gal/h of water flows through a 2-inch pipe system as follows: Exit from pump, 2ft vertical, open gate valve, 14 ft vertical, 908 bend, 12ft horizontal, 1/4 open globe valve, 20ft horizontal, 908 bend, 6ft horizontal, 908 bend, 12ft vertical, 908 bend, 14ft horizontal, 908 bend, 4 ft vertical, 908 bend, 28ft horizontal, open gate valve, 3ft horizontal, entry to tank containing 30ft of liquid. (a). If the pump and tank are both at grade level, estimate the head that the pump must deliver. (b). If the pump inlet pressure is 25 psig, what is the outlet pressure? (c). Estimate the pump shaft work ( d). If the pump is powered by an electric motor with 85% efficiency, what is the annual electricity consumption?
- Describe the reciprocating compressor piston, rod, crank-shaft, valves, valve plate, head, shaft seal, internal motor overload device, pilot-duty motor overload device, and coupling.1. A Carnot engine operates at a temperature between TH = 850 K and TL = 300 K. The engine produces 1200 J of work on each cycle, which takes 0.25 seconds a. what is the efficiency of this machine? b. what is the average power of this machine? C. what is the energy |QH| absorbed as heat from the high-temperature reservoir in each cycle? d. How much energy |QL| is released as heat to a low temperature reservoir?14. The highest pressure in a gas turbine engine occurs: In the jet pipe. Between the compressor and the combustion chamber. In the combustion chamber. O Between the combustion chamber and the gas turbine.
- 3) If the measurement parameters of a refrigeration machine are known, the amount of heat for liquid refrigerant (mix) when it enters the evaporator is 650 Btu/lb, the amount of heat for vapor refrigerant after it comes from the evaporator is 950 Btu/lb, and the amount of heat for superheat refrigerant after being compressed is 1280 Btu/lb. lb. Calculate the efficiency of the refrigeration machine?State what to find , assumption, and a simple sketch of the turbine. and then solve for the work output.The operating point for a given pump of a series pipeline system is ___________ A. Intersection point of the efficiency curve and the SRC curve B. Intersection point of the total head curve and the SRC curve C. Intersection point of the total head curve and the efficiency curve D. Intersection point of the input power curve and the SRC curve