A pipe takes water from a reservoir where the temperature is 12 °C to a hydroelectric plant 600 m below. At the 1.2 m diameter inlet to the powerhouse, the gauge pressure of the water is 5.5 MPa and its mean velocity is 2 m·s⁻¹. If its temperature there is 13.8 °C, at what rate has heat passed into the pipe as a result of hot sunshine? *(Note: The change of atmospheric pressure over 600 m must be accounted for: mean atmospheric density = 1.225 kg·m⁻³. Specific heat capacity of water = 4.187 kJ·kg⁻¹·K⁻¹.)*This question requires calculating the rate of heat absorbed by water as it moves through the pipe, considering initial and final temperatures, pressure changes, and specific heat capacity. The effect of altitude on atmospheric pressure must also be considered.

Answered: A pipe takes water from a reservoir…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Consider a pipe on a horizontal plane: based on Bernoulli's equation A. none of the above B. the inlet velocity will be less than the outlet velocity C. the inlet velocity will be greater than the outlet velocity D. the elevation of the inlet will be greater than that of the outlet
The pressure gauge at a micro-hydro powerhouse shows a reading of 500KN/m?. The velocity head inside the pipe can be neglected. The 2-jet Pelton wheel is having a diameter of 0.58m. The two nozzles cause a total loss of 2% of their inlet head. At rated water flow rate, the diameter of each jet of water is 2cm. The efficiency of the turbine at the rated speed of 520 rpm is 85%. The density of water is 1000 kg/m3 and gravitation constant is 9.81m/s?. (a) Determine under rated operating condition, (i) Net head available to the turbine (ii) Velocity of water jets (iii) Water flow rate to the turbine (iv) Mechanical power output
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Water is being pumped the through one inch diameter piping arrangement to a higher elevation (5 meters up). Assume incompressible fluid conditions and some heat losses to the surroundings. At the inlet water pressure is 1 bar, temperature 15C, and volumetric flow rate is 0.02 m3/s. At the exit pressure is 2.2 bar, temperature is 10C and velocity of the stream is 40 m/s. Determine: a.Density of the inlet stream using NIST tables. b.Mass flow rate [kg/s] c.Determine h2 from known p2 and T2 using NIST tables d.Find heat rate removed from Q=m(h1-h2) Use Energy Balance Equation with enthalpy difference and in the units of kW to find pumping power in kW. NOTE: The heat is removed from the system, so it should be negative in your equation! show all steps please
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Methane in the gaseous state flows at a rate of 0.072 m^3/s in a pipe at a temperature of 27°C and gauge pressure of 148.675kPa (point 1). The pipe is divided into two branches (point 2 and 3), as seen in the figure. If the exit velocity in pipe 3 is 12 m/s with a density of 1.9 kg/m^3, what is the flow rate and velocity in pipe 2? Consider that in section 2 the fluid is leaving with a temperature of 402°C and an absolute pressure of 175 kPa. We have an atmospheric pressure of 101.325 kPa and R_methane = 0.5182 kJ/kg ⚫K. (1) Inflow D1 D3=50mm D2=100mm (3) (2)
Water is being pumped the through one inch diameter piping arrangement to a higher elevation (5 meters up). Assume incompressible fluid conditions and some heat losses to the surroundings. At the inlet water pressure is 1 bar, temperature 15C, and volumetric flow rate is 0.02 m3/s. At the exit pressure is 2.2 bar, temperature is 10C and velocity of the stream is 40 m/s. Determine: a.Density of the inlet stream using NIST tables. b.Mass flow rate [kg/s] c.Determine h2 from known p2 and T2 using NIST tables d.Find heat rate removed from Q=m(h1-h2) Use Energy Balance Equation with enthalpy difference and in the units of kW to find pumping power in kW. NOTE: The heat is removed from the system, so it should be negative in your equation! show all steps please
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Solve it fast in 10min please its urgent

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