Water at 910 kPa, 25°C enters a 1-m-diameter horizontal pipe with a steady velocity of 13 m/sAt the exit the pressure drops to 870 kPa due to viscous resistance.Part AAssuming steady-state flow, determine the rate of heat transfer (Q) necessary to maintain aconstant specific internal energy (u).Express your answer to four significant figures and include appropriate units.

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Answered: Water at 910 kPa, 25°C enters a…

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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You want to know the power of a fan that is used to send air from a cooling system at 12 m linear distance by means of a 15 cm high stainless steel square pipe at a pressure of 105 Kpa and 25 ° C, to a ventilation port 25 m from the fan at 18 ° C at a pressure of 105 Kpa, with a flow of 0.25 m3/s (HP power
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An ideal gas passes a diffuser. At the diffuser inlet, the temperature is T1 = 350.00 K, the pressure P1 = 100.00 kPa, the velocity V1 = 200.00 m/s, and the inlet area A1 = 0.30 m2. At the exit, the velocity is very small. The specific heat of the ideal gas at the constant pressure is cp = 1.0050 kJ/(kg·K). The gas constant is R = 0.2870 kPa·m3/(kg·K). Determine the enthalpy per unit mass at the inlet, h1__________(kJ/kg)
From a PPRC (shiny surface) pipe with an inner diameter of 20.5 mm and a length of 70 cm, water at 20 ° C flows at a flow rate of 1500 L / h and a pressure difference of 52 mbar occurs. Based on these data, find the speed of the water, the Re number, the friction factor, the f value and the pressure difference (in mbar) and show the f value you found from the Moody diagram. (For 20 ° C water; p = 998 kg / m3,µ= 1.003x10-3 N.s / m2, v = 1.005x10-6 m2 / s, 1 bar = 10.2141mSS)
pls answer the given thanks
20.3 cm diam 2.44 m 1.22 m Water Air at 105 kPa and 37°C flows upward through a 6-cm-diameter inclined duct at a rate of Q (L/s). The density of air at this temperature and pressure is 1.10 Kg/m³. The duct diameter is then reduced to 4 cm through a reducer. The pressure change across the reducer is measured by a water Air manometer. The elevation difference between the two points on the pipe where the two arms of the manometer are attached is 0.20 m. Determine the differential height between the fluid levels of the two arms of the manometer. Q (L/s) 90
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Fluid Mechanics
2. An ideal gas, following the relationship (Pv = 75 m2/s²), flows in a horizontal pipe at a constant temperature. The internal diameter of the pipe is 0.025 m and the pressure drop is 11 kPa for each 5m length. Calculate the mass flow rate per unit area in kg/sm2, assuming the pressure at the end of the pipe is 12 kpa and the friction factor f = 0.009. Ignore the kinetic energy.
Steam enters a turbine with a pressure of P1= 4888 kPa, specific internal energy u1= 3612 kJ/kg, mass flow rate of 7.5kg/s and density of 1.112 kg/m3. Steam leaves at P2 = 224 kPa with a density of 4.5kg/m3 and a specific internal energy of u2= 1224 kJ/kg. Heat loss from the device by radiation is 50KJ/kg. Neglecting the changes in kinetic and potential energies, determine the power produced by the system.
An ideal gas passes a diffuser. At the diffuser inlet, the temperature is T1 = 350.00 K, the pressure P1 = 100.00 kPa, the velocity V1 = 200.00 m/s, and the inlet area A1 = 0.30 m2. At the exit, the velocity is very small. The specific heat of the ideal gas at the constant pressure is cp = 1.0050 kJ/(kg·K). The gas constant is R = 0.2870 kPa·m3/(kg·K). Determine the enthalpy per unit mass at the exit, h2__________(kJ/kg)

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