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Consider the following statements pertaining to large heat transferrate using fins:
1. Fins should be used on the side where heat transfer coefficient is small
2. Long and thick fins should be used
3. Short and thin fins should be used
4. Thermal conductivity of fin material should be large
Which of the above statements are correct?
1. Fins should be used on the side where heat transfer coefficient is small
2. Long and thick fins should be used
3. Short and thin fins should be used
4. Thermal conductivity of fin material should be large
Which of the above statements are correct?
- a)1, 2 and 3
- b)1, 2 and 4
- c)2, 3 and 4
- d)1, 3 and 4
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Consider the following statements pertaining to large heat transferrat...
The effectiveness of fin with negligible heat loss from the tip is given by
ϵ = √kP/hA tanh mL
It can be concluded that in order to increase the fin effectiveness
Thermal conductivity of fin material should be large.
The ratio of fin perimeter to the cross-sectional area should be increased. That means the thin and short fins should be used, and
Fins should be used on the side where heat transfer coefficient is small
Most Upvoted Answer
Consider the following statements pertaining to large heat transferrat...
Explanation:
The statement is related to the design considerations for achieving a large heat transfer rate using fins. Let's analyze each statement one by one:
1. Fins should be used on the side where heat transfer coefficient is small:
This statement is correct. Fins are used to increase the surface area available for heat transfer. They are typically attached to a surface where the heat transfer coefficient is small, such as the outer surface of a pipe or a solid object. By using fins on the side with a small heat transfer coefficient, we can enhance the overall heat transfer rate.
2. Long and thick fins should be used:
This statement is incorrect. The length and thickness of the fins should be optimized based on the specific heat transfer requirements. Longer and thicker fins may increase the surface area, but they can also lead to increased resistance to heat flow and increased pressure drop. Therefore, the design of fins should consider a balance between the desired heat transfer rate and the associated pressure drop.
3. Short and thin fins should be used:
This statement is correct. Short and thin fins are generally preferred for achieving a large heat transfer rate. Short fins can provide a larger surface area compared to long fins for the same overall dimensions, allowing for increased heat transfer. Thin fins reduce the resistance to heat flow and minimize the pressure drop. Therefore, short and thin fins are more efficient in enhancing the heat transfer rate.
4. Thermal conductivity of fin material should be large:
This statement is correct. The thermal conductivity of the fin material plays a crucial role in heat transfer. A material with high thermal conductivity will conduct heat more efficiently from the base surface to the fin tips, resulting in a higher heat transfer rate. Therefore, a fin material with a large thermal conductivity should be chosen to achieve a large heat transfer rate.
In summary:
The correct statements are 1, 3, and 4. Fins should be used on the side with a small heat transfer coefficient, short and thin fins are preferred, and a fin material with a large thermal conductivity should be selected.
The statement is related to the design considerations for achieving a large heat transfer rate using fins. Let's analyze each statement one by one:
1. Fins should be used on the side where heat transfer coefficient is small:
This statement is correct. Fins are used to increase the surface area available for heat transfer. They are typically attached to a surface where the heat transfer coefficient is small, such as the outer surface of a pipe or a solid object. By using fins on the side with a small heat transfer coefficient, we can enhance the overall heat transfer rate.
2. Long and thick fins should be used:
This statement is incorrect. The length and thickness of the fins should be optimized based on the specific heat transfer requirements. Longer and thicker fins may increase the surface area, but they can also lead to increased resistance to heat flow and increased pressure drop. Therefore, the design of fins should consider a balance between the desired heat transfer rate and the associated pressure drop.
3. Short and thin fins should be used:
This statement is correct. Short and thin fins are generally preferred for achieving a large heat transfer rate. Short fins can provide a larger surface area compared to long fins for the same overall dimensions, allowing for increased heat transfer. Thin fins reduce the resistance to heat flow and minimize the pressure drop. Therefore, short and thin fins are more efficient in enhancing the heat transfer rate.
4. Thermal conductivity of fin material should be large:
This statement is correct. The thermal conductivity of the fin material plays a crucial role in heat transfer. A material with high thermal conductivity will conduct heat more efficiently from the base surface to the fin tips, resulting in a higher heat transfer rate. Therefore, a fin material with a large thermal conductivity should be chosen to achieve a large heat transfer rate.
In summary:
The correct statements are 1, 3, and 4. Fins should be used on the side with a small heat transfer coefficient, short and thin fins are preferred, and a fin material with a large thermal conductivity should be selected.
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Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer?
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Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer?.
Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer?.
Solutions for Consider the following statements pertaining to large heat transferrate using fins:1. Fins should be used on the side where heat transfer coefficient is small2. Long and thick fins should be used3. Short and thin fins should be used4. Thermal conductivity of fin material should be largeWhich of the above statements are correct?a)1, 2 and 3b)1, 2 and 4c)2, 3 and 4d)1, 3 and 4Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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