- 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 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. Air Q (L/s) 90

- 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 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. Air Q (L/s) 90

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

See similar textbooks

Similar questions

Here, air (105 kPa) at 37 degrees celcius is flowing upward in a 6cm diamater inclined duct, at a rate of 90 L/s. In this case the density of air is 1.1 kg/m3. The diameter of the duct reduces to 4cm through a reducer and a pressure charge occurs. This pressure change is measured by a water manometer. The elevation difference between the points where the two arms of the manometer are attached is 0.2 meters. What is the differential height between the fluid levels in the two manometer arms?
The air velocity in the duct of a heating system is to be measured by a Pitot-static probe inserted into the duct parallel to the flow. If the differential height between the water columns connected to the two outlets of the probe is 3.2 cm, determine (a) the flow velocity and (b) the pressure rise at the tip of the probe. The air temperature and pressure in the duct are 45° C and 98 kPa, respectively
Water with density of 998 kg/m3 flows through an inclined pipe with diameterof 8 cm. At section A, pressure and elevation level are 175 kPa and 23.5 m,respectively. Meanwhile, pressure and elevation level at section B are 255 kPa,and 8.5 m, respectively. Determine the head loss and show direction of flowingwater.
Air at 105 kPa flows upward through a 6-cm-diameter inclined duct at a rate of 65 L/s. The duct diameter is then reduced to 4 cm through a reducer. The pressure change across the reducer is measured by a water 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. Take air density as 1.225kg/m3
Water flows in a 15-cm-diameter pipe at a velocity of 1.8 m/s. If the head loss along the pipe is estimated to be 19 m, the required pumping power (in kW) to overcome this head loss is ?"
Air fl ows adiabatically in a 3-cm-diameter duct, withf 5 0.018. At the entrance, T1 = 323 K, p1 =200 kPa, andV1 = 72 m/s. (a) What is the mass fl ow? (b) For what tubelength will the fl ow choke? (c) If the tube length is increasedto 112 m, with the same inlet pressure and temperature,what will be the new mass fl ow?
Air is kept in a tank at pressure Po = 689 KPa abs and temperature To = 17°C. If one allows the air to issue out in a one-dimensional isentropic flow, the flow per unit area at the exit of the nozzle where P = 101.325 KPa is Blank 1 kg/m2-s. For air, Use R = 287 J/kg-K and Mol. Wt. = 29.1 *Express your answers in whole significant figure without decimal value and without unit*
The impeller of a centrifugal blower has a radius of 15 cm and a blade width of 6.1 cm at the inlet, and a radius of 30 cm and a blade width of 3.4 cm at the outlet. The blower delivers atmospheric air at 20°C and 95 kPa. Disre- garding any losses and assuming the tangential components of air velocity at the inlet and the outlet to be equal to the impeller velocity at respective locations, determine the volu- metric flow rate of air when the rotational speed of the shaft is 800 rpm and the power consumption of the blower is 120 W. Also determine the normal components of velocity at the inlet and outlet of the impeller.
The air velocity in the duct of a heating system is to be measured by a Pitot-static probe inserted into the duct parallel to flow. If the differential height between the water columns connected to the two outlets of the probe is 2.4 cm, determine the flow velocity at the center of the duct in m/s. R of air is 287 J/Kg-K.
The friction factor in the plastic pipes for the piping system, which is shown in the figure, The diameter of the orifice located lower section of upper reservoir is 56,2 mm. The length and diameter of the pipe are 800cm and 30mm respectively. The kinematic viscosity and density of water 0.00000162 m2/s and 1000 kg/m3 respectively. Neglecting all the minor head losses and assuming that the system is operating at steady state. Determine and Solve the problem by making the necessary assumptions and drawing the schematic figure. i-volumetric flow rate through the pipe, ii-The head delivered by the pump iii- the power required by the pump, if the pump efficiency is 76,2% percent. (a=6 and b=2on the figure)
Air fills a 2-m-diameter balloon at 20ºC and 5 kPa gage. Additional air is forced into the balloon until it reaches 8 m in diameter at a gage pressure of 8 kPa, while the temperature remains constant. The added mass is nearest:
A horizontal pipe has an abrupt expansion from D1 = 5 cm to D2 = 10 cm. The water velocity in the smaller section is 8 m/s and the flow is turbulent. The pressure in the smaller section is P1 = 410 kPa. Taking the kinetic energy correction factor to be 1.06 at both the inlet and the outlet, determine the downstream pressure P2, and estimate the error that would have occurred if Bernoulli’s equation had been used.