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An oil cooler in a high performance engine has an outside surface area 0.12 m2 and a surface temperature of 65 degree Celsius. At any intermediate time air moves over the surface of the cooler at a temperature of 30 degree Celsius and gives rise to a surface coefficient equal to 45.4 W/ m 2 K. Find out the heat transfer rate?
  • a)
    238.43 W
  • b)
    190.68 W
  • c)
    543.67 W
  • d)
    675.98 W
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
An oil cooler in a high performance engine has an outside surface area...
: Q = (T2 – T1) A h = 0.12 (65-30) 45.4 = 190.68 W.
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Most Upvoted Answer
An oil cooler in a high performance engine has an outside surface area...
Given Data:
Outside surface area of oil cooler, A = 0.12 m²
Surface temperature of oil cooler, T₁ = 65°C = 338 K
Temperature of air, T₂ = 30°C = 303 K
Surface coefficient, h = 45.4 W/m²K

Heat Transfer Rate:
The rate of heat transfer from the oil cooler to the air can be calculated using the following formula:

Q = h × A × (T₁ - T₂)

Substitute the given values in the above formula, we get

Q = 45.4 × 0.12 × (338 - 303)
Q = 190.68 W

Therefore, the heat transfer rate from the oil cooler to the air is 190.68 W, which is the answer option (B).
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An oil cooler in a high performance engine has an outside surface area 0.12 m2and a surface temperature of 65 degree Celsius. At any intermediate time air moves over the surface of the cooler at a temperature of 30 degree Celsius and gives rise to a surface coefficient equal to 45.4 W/ m2K. Find out the heat transfer rate?a)238.43 Wb)190.68 Wc)543.67 Wd)675.98 WCorrect answer is option 'B'. Can you explain this answer?
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An oil cooler in a high performance engine has an outside surface area 0.12 m2and a surface temperature of 65 degree Celsius. At any intermediate time air moves over the surface of the cooler at a temperature of 30 degree Celsius and gives rise to a surface coefficient equal to 45.4 W/ m2K. Find out the heat transfer rate?a)238.43 Wb)190.68 Wc)543.67 Wd)675.98 WCorrect answer is option 'B'. Can you explain this answer? for Chemical Engineering 2024 is part of Chemical Engineering preparation. The Question and answers have been prepared according to the Chemical Engineering exam syllabus. Information about An oil cooler in a high performance engine has an outside surface area 0.12 m2and a surface temperature of 65 degree Celsius. At any intermediate time air moves over the surface of the cooler at a temperature of 30 degree Celsius and gives rise to a surface coefficient equal to 45.4 W/ m2K. Find out the heat transfer rate?a)238.43 Wb)190.68 Wc)543.67 Wd)675.98 WCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Chemical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An oil cooler in a high performance engine has an outside surface area 0.12 m2and a surface temperature of 65 degree Celsius. At any intermediate time air moves over the surface of the cooler at a temperature of 30 degree Celsius and gives rise to a surface coefficient equal to 45.4 W/ m2K. Find out the heat transfer rate?a)238.43 Wb)190.68 Wc)543.67 Wd)675.98 WCorrect answer is option 'B'. Can you explain this answer?.
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