17-130 Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are maintained at a temperature of 120°C. Circular aluminum alloy fins (k = 180 W/m-K) of outer diameter 6 cm and constant thickness t = 2 mm are attached to the tube, as shown in Fig. P17-130. The space between the fins is 3 mm, and thus there are 200 fins per meter length of the tube. Heat is transferred to the surround- ing air at 25°C, with a combined heat transfer coefficient of 60 W/m²-K. Determine the increase in heat transfer from the tube per meter of its length as a result of adding fins. r₂ = 3 cm Tb ₁=1.5 cm Too h t = 2 mm S = 3 mm

17-130 Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are maintained at a temperature of 120°C. Circular aluminum alloy fins (k = 180 W/m-K) of outer diameter 6 cm and constant thickness t = 2 mm are attached to the tube, as shown in Fig. P17-130. The space between the fins is 3 mm, and thus there are 200 fins per meter length of the tube. Heat is transferred to the surround- ing air at 25°C, with a combined heat transfer coefficient of 60 W/m²-K. Determine the increase in heat transfer from the tube per meter of its length as a result of adding fins. r₂ = 3 cm Tb ₁=1.5 cm Too h t = 2 mm S = 3 mm

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: Consider a 10m deep wall with a cross section as shown below. If the temperature on the left side of…

Q: (2) juhäi The heat is dissipated from the plate by convection and radiation into surrounds at 20 C.…

A: We are restricted to solve one question at a time. Please ask other questions in the next post.…

Q: 1) Hot water at an average temperature of 60°C is flowing through a 10-m section of a cast iron pipe…

A: Temperataure of water inside the pipe, T1=60 °C,Length of the pipe, L=10 m,Thermal conductivity of…

Q: What are the key factors that influence the convective heat transfer coefficient in a mechanical…

A: Convective heat transfer, a mode of thermal energy transport, occurs due to the bulk motion of…

Q: based on the information given here. Steam in a heating sy diameter is 5-cm and whose walls are…

Q: To maximize production and minimize pumping costs, crude oil is heated to reduce its viscosity…

Q: A flat wall 0.1 m thick and k = 25 W/(m-°C) has a heat generation rate per unit ofvolume of 0.3…

A: The problem involves a flat wall with heat generation and heat transfer to a fluid. The wall is…

Q: Steam in a heating system flows through tubeswhose outer diameter is 5 cm and whose walls are…

A: Write the given information.

Q: A type K size 8 copper tube is carrying cyclohexane at an average temperature of 50°C. The pipe is…

A: Given: The temperature of cyclohexane T∞1=50°C Outside air temperature T∞2=10°C Inside convective…

Q: -9- The plate shown in figure is at a uniform surface temperature of L=5m T, = 50°C. Heat is removed…

A: Given Data: The surface temperature of the plate is Ts=50°C. The ambient temperature is T∞=25°C.…

Q: based on the information given here. Steam in a heating system flows through tubes whose outer…

A: Given Surface area, A = 0.001916 m2 Thermal conductivity, k = 186 W/ moC…

Q: Q- For fully developed flow through a pipe, the wall temperature is maintained at 500°C. If the…

A: A fully developed flow through a pipe-Wall temperature is maintained at 500°C.Fluid has a thermal…

Q: Steam at 200°C flows in a cast iron pipe (k = 80 W/m-°C) whose inner and outer diameters are D, =…

A: Fourier's law of conduction is used to measure the conduction heat transfer across the body. Acc. to…

Q: To maximize production and minimize pumping costs, crude oil is heated to reduce its viscosity…

A: It is required to determine convection heat transfer resistance on inside of the pipe per unit…

Q: based on the information given here. Steam in a heating system flows through tubes whose outer…

A: The answer is Ccannot be determined, since the no. of fins is not given.But I assumed it to be 250,…

Q: Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are…

Q: An ordinary egg can be approximated as a 5.5-cm-diameter sphere whose thermal conductivity of…

Q: A fluid is flowing through two different tubes of same cross-section area. We are to compare the…

A: Given: The length of the circular pipe and square pipe is same. Heat transfer is calculated as:…

Q: Blast Area Discharge Back Plate Outlet Area Blade Inlet Cutoff Scroll Shroud Impeller Frame

A: Function of different parts : 1. Bearing support : To support the shaft in the machine. 2. Inlet…

Q: manufacturer plans to use steel wire (ks = 25 Wm-1 K-1 ) in a household appliance. For safety…

Question

100%

17-130 Steam in a heating system flows through tubes
whose outer diameter is 3 cm and whose walls are maintained
at a temperature of 120°C. Circular aluminum alloy fins (k =
180 W/m-K) of outer diameter 6 cm and constant thickness t =
2 mm are attached to the tube, as shown in Fig. P17-130. The
space between the fins is 3 mm, and thus there are 200 fins per
meter length of the tube. Heat is transferred to the surround-
ing air at 25°C, with a combined heat transfer coefficient of
60 W/m² K. Determine the increase in heat transfer from the
tube per meter of its length as a result of adding fins.
r2 = 3 cm
ты
₁ = 1.5 cm
ON
FIGURE P17-130
Too
h
t = 2 mm
S = 3 mm

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

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Trending now

This is a popular solution!

Step by step

Solved in 7 steps with 7 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

Ten circular fins of uniform cross section, D=15mm, and a length of 75mm, are attached to a 1m2 wall with surface temperature of 375o The fins are made of a material with k=240W/mK. It is exposed to ambient air at 20oC with a convective heat transfer coefficient 75W/m2K. Use the approximation to change a convective tip to an adiabatic tip. Use equations from table 3-3 (p. 177) and equation 3-69 through 3-78 to determine: Individual fin effectiveness. Overall fin effectiveness.
Air flows at 120 oC in a thin-walled tube (k = 18 W/m oC) with h = 65 w/m2- oC. The inside diameter of the tube is 2.5 cm tand the wall thickness is 0.4 mm. The tube is exposed to an environment with h = 6.5 W/m2-oC and temperature of 15 oC. Calculate the Overall heat transfer coefficient and the heat loss for 1 m length. (four decimal places for final answer)
Heat transfer
Heat Transfer Lesson The temperature will be increased from 10 (Degree Celsius oC) to 90 (Degree Celsius oC) while the water flows through a 1.5 cm inner diameter and 7 meter long straight pipe. Equipped with electric heater on the entire surface of the pipe. Even heating throughout. The outer surface of the heater is well insulated and therefore all heat generated in the heater in continuous operation is transferred to the water in the pipe. If the system provides a hot water flow rate of 6 liters / minute. (Thermophysical properties of water at 50 oC:ρ = 988 m3/kg, k= 0.6305 W/m oC, cp=4181 J/kg oC, Pr=3.628, μ= 0.0005471 kg/m.s ) a)Find the power of the resistance heater [W]. b)Calculate the inner surface temperature [oC] of the pipe at the outlet. c)Find the pressure drop [Pa]. d)Find the pump power [W] required to overcome this pressure drop.
how is a three-dimensional heat equation reduced if heat transfer occurs in an insulated long, thin rod or wire of a specific length? Explain what will be the new equation?
A 2-meter long prism with square cross-section of side 0.1m is made of stainless steel with a thermal conductivity k=14.9W/m C. The prism is connected on the left-hand side to a molten metal tank with temperature To=2000 °C. The periphery of the prism is cooled by a slow air stream at T=30°C with heat transfer coefficient h=10W/m² C. The right-hand side of the prism is isolated. Determine the temperature distribution inside the prism T(x) and evaluate the temperature at the midpoint (x=1m).
Consider a 10m deep wall with a cross section as shown below. If the temperature on the left side of the wall is 100oC and the temperature on the right side is 30oC, determine: Total thermal resistance of the wall Heat transfer rate through the wall (as a vector) The convective heat transfer coefficient (h) of the air on the left side of the wall if ambient temperature is 120oC
A stainless steel pin fin that has k = 16 W/m.o C , L = 10 cm , d = 1 cm and that is exposed to a boiling water convection situation with h = 5000 W/m2 . oC . Determine the effectiveness of the fin
What is the product of overall heat transfer coefficient and area (UA) for a heat transfer equipment with the geometry as shown in the diagram? The inner tube (the shaded area in the figure) is made of a material with thermal conductivity of 1.2 W/m.K. The convection coefficient of the hot fluid (in the inner tube) is 25 W/m².K and that of the cold fluid is 12 W/m².K. The dimensions shown in the figure are r₁ 0.1 m, r₂ = 0.15 m, and r3 = 0.3 m. The length is 1 m. 4.86 W/ Cold Fluid Hot Fluid TI =
plz give a full explained answer ASAP within 30-40 min upvotes will be given.
I need the answer as soon as possible
A 2-meter long prism with square cross-section of side 0.1m is made of stainless steel with a thermal conductivity k=14.9W/m°C. The prism is connected on the left- hand side to a molten metal tank with temperature To=2000°C. The periphery of the prism is cooled by a slow air stream at To=30°C with heat transfer coefficient h=10W/m² °C. The right-hand side of the prism is isolated. Determine the temperature distribution inside the prism T(x) and evaluate the temperature at the midpoint (x=1m). T(x)=1.966x10-6e5.18x+1.970e-5.18x+30 T(x)=1.966x10-6e5.18x-1.970e-5.18x T(x)=1.966×10-6e5.18x+1970e-5.18x+30 T(x)=1.966×10-6e5.18x+1970e5.18x