Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are maintained ot a temperature of 121'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 the figure. The space between the fins is 3 mm. Thus, there are 200 fins per meter length of the tube. Heat is transferred to the surrounding air at 25°C, with a combined heat transfer coefficient of 60 W/m K. Determine the increase in heat transfer from the tube per meter length as a result of the attached fins. Efficiency of these circular fins is given to be 0.96. 3 cm 1=2 mm S=3 mm The increase in heat transfer is 3912 W.
Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are maintained ot a temperature of 121'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 the figure. The space between the fins is 3 mm. Thus, there are 200 fins per meter length of the tube. Heat is transferred to the surrounding air at 25°C, with a combined heat transfer coefficient of 60 W/m K. Determine the increase in heat transfer from the tube per meter length as a result of the attached fins. Efficiency of these circular fins is given to be 0.96. 3 cm 1=2 mm S=3 mm The increase in heat transfer is 3912 W.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.56P
Related questions
Question
![Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are maintained ot a temperature of
121'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 the figure. The space between the fins is 3 mm. Thus, there are 200 fins per meter length of the tube. Heat is transferred to
the surrounding air at 25°C, with a combined heat transfer coefficient of 60 W/m K. Determine the Increase in heat transfer from the
tube per meter length as a result of the attached fins. Efficiency of these circular fins is given to be 0.96.
n=15 cm
=3 cm
I=2 mm
S=3 mm
The increase in heat transfer is
3912 W.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9c032157-7c51-4ae0-bf11-737222ac0370%2F71ab0729-9c25-4588-b7b3-57ba61b46ad1%2Fry0mqkr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are maintained ot a temperature of
121'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 the figure. The space between the fins is 3 mm. Thus, there are 200 fins per meter length of the tube. Heat is transferred to
the surrounding air at 25°C, with a combined heat transfer coefficient of 60 W/m K. Determine the Increase in heat transfer from the
tube per meter length as a result of the attached fins. Efficiency of these circular fins is given to be 0.96.
n=15 cm
=3 cm
I=2 mm
S=3 mm
The increase in heat transfer is
3912 W.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
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!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 5 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
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.Recommended textbooks for you
![Principles of Heat Transfer (Activate Learning wi…](https://www.bartleby.com/isbn_cover_images/9781305387102/9781305387102_smallCoverImage.gif)
Principles of Heat Transfer (Activate Learning wi…
Mechanical Engineering
ISBN:
9781305387102
Author:
Kreith, Frank; Manglik, Raj M.
Publisher:
Cengage Learning
![Principles of Heat Transfer (Activate Learning wi…](https://www.bartleby.com/isbn_cover_images/9781305387102/9781305387102_smallCoverImage.gif)
Principles of Heat Transfer (Activate Learning wi…
Mechanical Engineering
ISBN:
9781305387102
Author:
Kreith, Frank; Manglik, Raj M.
Publisher:
Cengage Learning