Explain how the energy balance for a steady flow device equation, 8qrev - SW ev = dh + dke + dpe can be expressed as the Bernoulli equation. [Note: State all the relevant assumptions]
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![Explain how the energy balance for a steady flow device equation,
8qrev - SW ey = dh + dke + dpe
can be expressed as the Bernoulli equation.
[Note: State all the relevant assumptions]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F540793eb-a56b-4b09-8afa-5310c0bfd224%2Fdf045c10-1306-4db5-9ef8-9b127091ed36%2F6qggph9_processed.png&w=3840&q=75)
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- A pump increases water pressure from 1 bar to 4 bar. If the flow rate of the water is 150 l/min, determine its power? a)750 W b)150 W c)600 W d)1000 W e)250 WElaborate the role of the following in an Hydroelectric Power Plant: penstock, reservoir, dam, trash rack, surge tank and forebay.The performance data of a water pump follow the curve fit Havailable = H0 − aV.2 , where the pump’s shutoff head H0 = 7.46 m, coefficient a = 0.0453 m/(Lpm)2 , the units of pump head H are meters, and the units of V. are liters per minute (Lpm). The pump is used to pump water from one large reservoir to another large reservoir at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The system curve simplifies to Hrequired = (z2 − z1) + bV.2 , where elevation difference z2 − z1 = 3.52 m, and coefficient b = 0.0261 m/(Lpm)2 . Calculate the operating point of the pump (V.operating and Hoperating) in appropriate units (Lpm and meters, respectively).
- What does it mean for an engineering device that has steady-flow?A geothermal power plant has a brake power of 20 MW, combined efficiency of 80%, and mechanical efficiency of 80%. The pressurized groundwater at 175 bar and 280 degrees Celsius leave the wells to enter the flash chamber maintained at 14 bar. The steam collected enters the turbine a 14 bar and exhaust at 1 atm. If one well discharges 180000 kg/hr of hot water, compute the combined work in kW.Good Day , Am struggling with the two questions below , please assit Question 1 A solar-power-tower plant is considered for Dakar, Senegal. Heliostats with a total area of 80,000 m2 are to be used to reflect solar radiation into a receiver. When the solar irradiation is 950 W/m2, steam is produced at 2 MPa and 400°C at a rate of 20 kg/s. This steam is expanded in a turbine to 20 kPa pressure. The enthalpy at the exit of the turbine is 2484.5 kJ/kg.(a) Determine the power output and the thermal efficiency of the plant when the solar radiation is 950 W/m2.(b) How much electricity can be produced per year if the average thermal efficiency is 15 % and the generator efficiency is 96 %? Question 2 To reduce cooling electricity consumption in an industrial plant, it is proposed to install an absorption refrigeration system running on solar energy. The absorption system costs $300,000 and the operating and maintenance expenses are $8000 per year. It is estimated that this absorption system…
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