Nitrogen at 30°C and atmospheric pressure enter a triangular duct 0.02 m on each side at a rate of 4x104 kg/s. If the duct temperature is uniform at 200°C, estimate the bulk temperature of the nitrogen 2 m and 5 m from the inlet. For laminar flow; Nu, = 2.47; for turbulent flow; Nu̟h 0. 023Re,0.8 Pr0.3 %3D

Nitrogen at 30°C and atmospheric pressure enter a triangular duct 0.02 m on each side at a rate of 4x104 kg/s. If the duct temperature is uniform at 200°C, estimate the bulk temperature of the nitrogen 2 m and 5 m from the inlet. For laminar flow; Nu, = 2.47; for turbulent flow; Nu̟h 0. 023Re,0.8 Pr0.3 %3D

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

Related questions

Q: 1. A liquid film of thickness H flows down an inclined plane due to gravity. The plane is maintained…

A: Data given-

Q: Water at 27°C flows with a mean velocity of 1 m/s through a 1 km-long pipe of 0.25 m inside…

Q: Required information A number of straight 25-cm-long microtubes of diameter d are bundled together…

Q: derived from the Hagen-Poiseuille equation through the introduction of the Reynolds number. What is…

Q: e- Water at 12 °C is to be heated to 60 °C by passing it over a bundle of 3-m-long, 2-cm-diameter…

Q: . Oil enters a 1.25-cm diameter,3-m long tube at 38°C. The tube wall is maintained at 66°C, and flow…

Q: Air at 1.7 atm gauge and 15°C enters a horizontal 75-mm steel pipe that is 70 m long. The velocity…

A: Given DataV=60m/sL=70 mD=75mm=0.075mT=15°C

Q: Air at 15 °C is flowing in a 2.75-mm-diameter tube at such a rate that the wall shear stress has a…

A: Given data: d=2.75 mmτw=3.3×10-4 N/m2T=15°C Need to determine the mass flow rate of the air.

Q: Water at 30 °C enters a pipe of 25 mm in diameter and 1 m in length with a mean velocity of 0.06…

Q: Air at standard pressure flows across a flat plate at 3m/s. The temperature surface is 50oC and the…

A: V= 3m/sTs = 500 CTo = 200 Cx=1 m

Q: A saturated steam at 410K is being transported in a pipeline (brass drawing tubing) at a rate of 1…

A: The temperature of saturated steam is .The mass flow rate is .The inner diameter of the pipe is .The…

Q: Assuming an air density of 1.22kg/m3, calculate (1) the pressure loss for a ventilation airway…

Q: 5. Water flows over a L=0.3 m long plate at 1.2 m/s velocity and 3°C temperature. There is a…

Q: involving plate T, = 20°C. In the first case, Re = 5x 105, while in the second case the flow is…

A: Thermal boundary layer thickness for flat plate: It is the opposite separation from the outer layer…

Q: value of the pressure coefficient for an airplane flying at 170m/s in air at 2

Q: ) A 75 mm-diameter orifice is on the vertical side of a closed tank. The tank rests on a flat ground…

A: Given: Diameter of orifice→D=75 mm=0.075 m Height of the orifice from the ground: →h=0.5 m Hence…

Q: An engineer who took college fluid mechanics on apass-fail basis has placed the static pressure hole…

A: Given, L = 10 m T1 = 20°C P1 = 1 atm D = 6 cm = 0.06 m For air we know that,ρ = 1.2 kg/m3μ =…

Q: You are designing an IC heatsink which uses round pins in cross-flow. The heatsink must dissipate…

Q: A fluid enters with a steady flow of 3.7 kg/s and an initial pressure of 690 kPa, an initial density…

Q: Water flows at a rate of 0.1 kg/s in a tube with a diameter of 250 mm. The tube is heated uniformly…

A: Given: The mass flow rate, m = 0.1 kg/s The diameter of tube, d = 250 mm = 0.25 mm The heat rate, Q…

Q: Air with a 1.7 atm gauge and a temperature of 15°C enters a horizontal 0.075m steel pipe 70 m long.…

A: Given DataLength of Pipe L=70mTemerature T=15°CDiameter of Pipe D=0.075mVelocity of Flow…

Q: Find the heat-transfer coefficient α if the mean air temperature tf = 100oC.

Q: e- Water at 12 °C is to be heated to 60 °C by passing it over a bundle of 3-m-long, 2-cm-diameter…

Q: Briefly explain the shear stress and velocity profile for turbulent flow

Q: An ideal gas in which the pressure P is related to the volume V by the equation PV=60 m2/s2 flows in…

Q: A 2-cm diameter, 10-m long tube transports water at an average flow velocity of 8 m/s. The water…

A: Nusselt number is , based on Reynolds number and prandtal number. and these number are based on the…

Q: Prob. 10 Calculate thermal entrance length for laminer flow of air with a mean velocity of 1 m/s in…

Q: Q3- Consider a fluid flow in round tube of length 1m and diameter 5mm. Classify the flow as laminar…

A: To Find : The entrance lenght a) For air at with speed of b) water with mass flow rate Given :…

Q: Air (pressure 1 atm) enters a circular pipe 5 cm in diameter at 20 °C with an average speed of 5…

A: Given: The diameter of tube D=5 cm=0.05 m The average velocity of airva=5 ms The inlet air…

Q: A thin metal sheet serving the purpose of an an anemometer has a length of 2.5 cm with a width of 8…

Q: Atmospheric air at 5°C enters a thin walled 12cm diameter 20m long isothermal pipe (Ts=constant) at…

Q: For the following situations of steady flow, calculate the Reynold's Number and determine whether…

Question

Nitrogen at 30°C and atmospheric pressure enter a triangular duct 0.02 m on each side at a rate of
4x104 kg/s. If the duct temperature is uniform at 200°C, estimate the bulk temperature of the
nitrogen 2 m and 5 m from the inlet.
For laminar flow; Nup = 2.47;
for turbulent flow; Nuµb
0. 023Rep
0.8
*Pr0.3

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Solution

Page 2

Page 3

Page 4

Page 5

Page 6

Trending now

This is a popular solution!

Step by step

Solved in 6 steps with 6 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

5. Water flows over a L=0.3 m long plate at 1.2 m/s velocity and 3°C temperature. There is a correlation between the water temperature and the plate surface temperature as Ts(x) -T=Cx0.75 across the plate (C = 54.27 °C/m0.75). The surface temperature varies throughout the plate. Find the average heat transfer coefficient for this case.
Assuming an air density of 1.22kg/m3, calculate (1) the pressure loss for a ventilation airway transition from a 1m diameter duct to a 1.2m diameter duct at a flow rate of 19 cubic metres per second with an abrupt expansion transition shock factor of 0.24; (il) the dynamic or velocity pressure in both ducts.
Ethanol at 20°C flows at 0.008 m/s through a horizontal cast iron (ɛ = 0.26 mm) pipe with L = 12 m and d = 5 cm. Neglecting entrance effects, estimate (a) the pressure gradient dp/dx, (b) the wall shear stress Tw, and (c) the percentage reduction in friction factor if the pipe walls are polished to a smooth surface. Ethanol properties at 20 °C: p= 789 kg/m, u = 0.0012 kg/m.s
For axial flow through a circular tube, the Reynolds numberfor the transition to turbulence is approximately 2300 based on the diameter and average velocity. Ifd= 5 cm and the fl uid is kerosene at 20 ° C, fi nd the volumeflow rate in m 3 /h that causes transition.
i need the answer quickly
Prob. 10 Calculate thermal entrance length for laminer flow of air with a mean velocity of 1 m/s in a pipe of 3 cm diameter. Air: v =1.86x10m?/s Pr = 0.714
Air with a 1.7 atm gauge and a temperature of 15°C enters a horizontal 0.075m steel pipe 70 m long. The velocity at the pipe's entry is 60 m/s. What is the pressure at the discharge end of the line assuming isothermal flow?
X Check physical properties. Air at 15 °C is flowing in a 2.75-mm-diameter tube at such a rate that the wall shear stress has a value of 3.30x 10-4 N/m? and is independent of axial position. Determine the mass flowrate of air. i 0.000133 kg/s
Compare the frictional pressure drop, due to skin friction, of air and water for a smooth circular pipe of inside diameter D and length L. For this comparison, consider the mass flow rate of air to be equal to the mass flow rate of water [Ans.: Using the McAdams’ correlation for f we find, ∆Pa/∆Pw = (ρw/ρa)1.2].
For the following situations of steady flow, calculate the Reynold's Number and determine whether flow is laminar or turbulent, or in the transition regionAir at 2 atm pressure and 180°F flowing at 50 ft/s in a 12-in. duct.
Air at 1.7 atm gauge and 15°C enters a horizontal 75-mm steel pipe that is 70 m long. The velocity at the entrance of the pipe is 60 m/s. Assuming isothermal flow, what is the pressure at the discharge end of the line? ANSWER SHOULD BE 1.982 atm
An ideal gas in which the pressure P is related to the volume V by the equation PV=60 m2/s2 flows in a steady isothermal flow along a horizontal pipe of inside diameter di =0,04m. The pressure drops from 0.5 atm to 0.35 atm in a 1000 cm length. Calculate the mass flowrate in kg/(sm2) if we can assume that the friction factor jf stay constant at a value of 5,2´10-3.