Problem 3:InsulationTo=1ToowwwwSteamTx2T₂ T3www wwwR₁ R₁ R₂www.TR₂Steam at T1 = 320 °C flows in a cast iron pipe (k= 80 W/m. °C) whose inner and outer diameters are5 cm = 0.05 m and D₂ = 5.5 cm = 0.055 m, respectively. The pipe is covered with 3-cm-thick glass woolinsulation with k = 0.05 W/m. °C. Heat is lost to surroundings at T2 = 5 °C by natural convection andradiation, with a combined heat transfer coefficient of h₂ = 18 W/m². °C. Taking the heat transfer coefficientinside the pipe to be h₁ = 60 W/m². °C, determine the temperature drops across the pipe and the insulation.The determination is based on a unit length of the pipe (L = 1 m).Assumptions1. Heat transfer is one-dimensional since there is no indication of any change with time.2.Heat transfer is one-dimensional since there is thermal symmetry about the centreline and novariation in the axial direction.3. Thermal conductivities are constant.4. The thermal contact resistant at the interface is negligible.D₁= What to Submit:Submit the following figures and table:• Temperature plot of steam pipe assembly in C° units.Temperature plot scoped to insulator (glass wool) in C° units.• Temperature plot scoped to steam pipe (cast iron) in C° units.•Fill in the below table. Compute the temperature drop up to THREE decimal places (see hint givenbelow).Temp drop in InsulatorTemp drop in PipeANSYS Results• Include the above table in your submission.

The diagram of the above thermal condition is shown below, using the equivalence with electrical…

Insulation T₂1 h₁ T Steam T₂ h₂ T=₂ T₂ www R₁ R₂ R₂ T=₂ R₁ °C flows in a cast iron pipe (k = 80 W/m. °C) whose inner and outer diameters are dD₂ = 5.5 cm = 0.055 m, respectively. The pipe is covered with 3-cm-thick glass wool = 0.05 W/m. °C. Heat is lost to surroundings at T2 = 5 °C by natural convection and

Insulation T₂1 h₁ T Steam T₂ h₂ T=₂ T₂ www R₁ R₂ R₂ T=₂ R₁ °C flows in a cast iron pipe (k = 80 W/m. °C) whose inner and outer diameters are dD₂ = 5.5 cm = 0.055 m, respectively. The pipe is covered with 3-cm-thick glass wool = 0.05 W/m. °C. Heat is lost to surroundings at T2 = 5 °C by natural convection and

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: In 2012, a new fiber-optic cable of handling 40,000 telephone calls simultaneously was laid under…

A: Given data:-The cable was unreeled from shipboard at a mean temperature = 22 °CThe Ocean floor has a…

Q: The heat transfer Q from the steam turbine shown in figure below is 0.085 MW. Determine the power…

A: Given, Total heat loss = Q˙ = 0.085 MW = 85 × 103 W Pressure at inlet = P1 = 20 bar = 2000 kPa…

Q: The liquid food is flowed through an uninsulated pipe at 90 ° C. The product flow rate is 0.4 kg / s…

A: Given data as per question Temperature of fluid =900 c Flow rate = 0.4 kg / s Density =1000 kg /…

Q: The temperature distribution across a wall 0.25 m thick at a certain instant of time is T(x) = a +…

Q: Blowtorch is used to connect the two pipes together. Length of the pipe section shown is 80 cm with…

A: Given: l=0.8m; d=0.7m; t=3mm; k=177 W/m2K; ambient temperature is 25 C; h=20 W/mK; Tb=220 C

Q: Air enters a duct (100 cm *10 cm*10 cm) at 32°C at a rate of 0.28 m³/min to cool 138 W electronic…

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: In any heat exchanger, the log mean temperature difference "could" be the same as the mean "average"…

A: Given :- In any heat exchanger, the log mean temperature difference "could" be the same as the mean…

Q: (a) Determine the temperatures at nodes 1, 4, 7, and 9. (b) Calculate the heat rate per unit length…

A: Given Data Heat through a channel To find Temperature at 1 Temperature at 4 Temperature at 7…

Q: Saturated steam at 3 atm will flow through a 3 in. Schedule 80 steel pipe. In order to decrease the…

A: The outer surrounding temperature is To=20°C The radius of the pipe is r1=32 in=3.81 cm. The thermal…

Q: The temperature at the inner and outer surfaces of a boiler wall made of 25 mm thick steel and…

A: solutiongiven dataTi=350°CT∘=600°Cb1=25 mmb2=15 mmks=68 w/m°CKins=0.126 w/m°C

Question

Problem 3:
Insulation
To=1
Toowwww
Steam
Tx2
T₂ T3
www www
R₁ R₁ R₂
www.T
R₂
Steam at T1 = 320 °C flows in a cast iron pipe (k= 80 W/m. °C) whose inner and outer diameters are
5 cm = 0.05 m and D₂ = 5.5 cm = 0.055 m, respectively. The pipe is covered with 3-cm-thick glass wool
insulation with k = 0.05 W/m. °C. Heat is lost to surroundings at T2 = 5 °C by natural convection and
radiation, with a combined heat transfer coefficient of h₂ = 18 W/m². °C. Taking the heat transfer coefficient
inside the pipe to be h₁ = 60 W/m². °C, determine the temperature drops across the pipe and the insulation.
The determination is based on a unit length of the pipe (L = 1 m).
Assumptions
1. Heat transfer is one-dimensional since there is no indication of any change with time.
2.
Heat transfer is one-dimensional since there is thermal symmetry about the centreline and no
variation in the axial direction.
3. Thermal conductivities are constant.
4. The thermal contact resistant at the interface is negligible.
D₁=

What to Submit:
Submit the following figures and table:
• Temperature plot of steam pipe assembly in C° units.
Temperature plot scoped to insulator (glass wool) in C° units.
• Temperature plot scoped to steam pipe (cast iron) in C° units.
•
Fill in the below table. Compute the temperature drop up to THREE decimal places (see hint given
below).
Temp drop in Insulator
Temp drop in Pipe
ANSYS Results
• Include the above table in your submission.

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1: Diagram

VIEW

Step 2: Calculation of resistance, heat flux

VIEW

Step 3: Temperature drop

VIEW

Solution

VIEW

Step by step

Solved in 4 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

6 m 6 m Elbow 6 m 3 m. Activate Wind Goto Sectines1 15 m A fluid is pumped at a rate of 0.00156 m/s through a 0.025-m-diameter pipe to fill a 9°C 020
B-Water flows at Too 50 °C, hoo1 = 3500 W/m² ° C in a pipe with r₁= 1.25 cm, r₂ =1.33 cm and L= 1 m, the pipe has k= 16 W/m °C. The outside of the pipe is exposed to a fluid with Too2 = 20° C, hoo₂ 7.6 W/m² ° C. Calculate the rate of heat lost by the pipe and find the temperature of the pipe outer surface T₂. 0 3 + 6 f = =
If hand written i'll upvote otherwise downvote?...
Presents the diagram of the problem, necessary formulas, clearance and numerical solution: An iron plate 2 cm thick has a cross-sectional area of 5,000 cm2. One of the faces is at 150 ◦C and the other is at 140 ◦C. How much heat flows through the plate each second? For iron, kT = 80 W/m K.
#1--- #2 << < < < < T(°C) #6 300 200 85 #3 ---- 100 0 L+a 20 Pb-Sn System 40 D #4 a+B #5 60 C, wt% Sn E mary eutectic 80 eutectic L L4B #6 100 F В O LD 11. B ME IV.F V. A VI. C
Based on the picture above, make a schematic and determine the average temperature difference over the entire length of the tube (ATLM). (value 25)
Q. Steam in a heating system flows through tubes whose outer diameter is 5 cm and whose walls are maintained at a temperature of 130 °C. Circular aluminum alloy 2024-T6 fins k = 186 W/m.K of outer diameter 6 cm and constant thickness 1 mm are attached to the tube. The space between the fins is 3 mm, and thus there are 250 fins per length of the tube. Heat is transferred to the surrounding air at 25 °C, with a heat transfer coefficient of 40W/m².K. Determine: 1. The increase in heat transfer from the tube per meter of its length as result of adding fins. 2. The efficiency of the fins. 3. Temperature at mid-point of the fins. Note: Equations and any other data required can be taken from textbook/handbook. 130°C 25°C
You are designing a 3m x 3m floor with radiant heating. The floor has 12 parallel pex pipes (k = 40 W/mK) of L = 3m, OD = 25mm and ID = 20mm. Hot water (TInfintiy 1 = 90oC, h = 200 W/m2K) runs through the pipes continuously. The surface below the pipes is perfectly insulated. Above the pipes, there is a 3mm layer of bonding material (? = 12 W/mK) and a 9mm layer of tile (k = 2 W/mK). Above the tile, there is air (TInfinity 2 = 25oC, h = 20 W/m2K). Properties of Air: k = 0.025 W/mK, Pr = 0.72, v = 1.847 x 10−5, u = 16.84 x 10−6, p = 1.2 kg/m3, B = 1/Tf (ideal gas), Hint: Assume that the “layer” of pipe starts at the center point (e.g. for conduction purposes, the pipe is OD divided by 2 thick). For convection, consider the entire pipe surface. a) What is the total heat rate entering the room above the floor? b) What is the temperature of the top of the tile?
B/A boiling channel receives a thermal power of 6000 kw. If subcooled water at 275 °C enters the channel at a flow rate of 15 kg/s what is the void fraction at the channel outlet where the slip ratio is 1.687 and pressure is 68 bar. Given data: At 68 bar: h=1256 KJ/Kg, hg-1518 KJ/Kg, V-1.344*10-³ m³/Kg, V-28.27*10³ m³/Kg
A conductor with a diameter D= 0.8 cm, covered by an electric current, passes through an environment at T∞= 30 °C with convective heat transfer coefficient h= 120 W/(m² °C). The conductor temperature must be maintained at Ti= 130 °C. Calculate the rate of heat loss per meter of conductor length with:a) the uncoated conductor;b) the conductor covered with bakelite [k = 1.2 W/(m°C)] with a radius corresponding to the critical insulation radius.