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In case of hollow cylinder, as the ratio of outer radius to inner radius increases, the heat transfer
- a)decreases
- b)increases
- c)remains constant
- d)may increase or decrease depending upon cylinder material
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
In case of hollow cylinder, as the ratio of outer radius to inner radi...
In case of hollow cylinder
as
increases Q decreases
as
increases Q decreasesMost Upvoted Answer
In case of hollow cylinder, as the ratio of outer radius to inner radi...
Explanation:
Heat transfer in a hollow cylinder is influenced by the ratio of outer radius to inner radius. Let's discuss how the heat transfer is affected as this ratio increases:
1. Heat Transfer Mechanism:
Heat transfer in a hollow cylinder occurs through conduction. As the outer radius to inner radius ratio increases, the distance for heat to travel from the inner surface to the outer surface also increases.
2. Effect on Heat Transfer:
- Decreases: When the ratio of outer radius to inner radius increases, the thermal resistance for heat transfer also increases. This results in a decrease in heat transfer efficiency.
- Explanation: The increased distance between the inner and outer surfaces creates a longer path for heat conduction. This increased thermal resistance hinders the rate of heat transfer, leading to a decrease in overall heat transfer efficiency.
Therefore, in the case of a hollow cylinder, as the ratio of outer radius to inner radius increases, the heat transfer decreases due to the increased thermal resistance.
Heat transfer in a hollow cylinder is influenced by the ratio of outer radius to inner radius. Let's discuss how the heat transfer is affected as this ratio increases:
1. Heat Transfer Mechanism:
Heat transfer in a hollow cylinder occurs through conduction. As the outer radius to inner radius ratio increases, the distance for heat to travel from the inner surface to the outer surface also increases.
2. Effect on Heat Transfer:
- Decreases: When the ratio of outer radius to inner radius increases, the thermal resistance for heat transfer also increases. This results in a decrease in heat transfer efficiency.
- Explanation: The increased distance between the inner and outer surfaces creates a longer path for heat conduction. This increased thermal resistance hinders the rate of heat transfer, leading to a decrease in overall heat transfer efficiency.
Therefore, in the case of a hollow cylinder, as the ratio of outer radius to inner radius increases, the heat transfer decreases due to the increased thermal resistance.
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In case of hollow cylinder, as the ratio of outer radius to inner radius increases, the heat transfera)decreasesb)increasesc)remains constantd)may increase or decrease depending upon cylinder materialCorrect answer is option 'A'. Can you explain this answer?
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