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Air at atmospheric pressure and 20 degree Celsius flows with 6 m/s velocity through main trunck duct of air conditioning system. The duct is rectangular in cross-section and measures 40 cm by 80 cm. Determine heat loss per meter length of duct corresponding to unit temperature difference. The relevant thermos-physical properties of air are
v = 15 * 10 -6 m 2/s
α = 7.7 * 10 -2 m2/hr
k = 0.026 W/m degree
  • a)
    32.768 W
  • b)
    42.768 W
  • c)
    52.768 W
  • d)
    62.768 W
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Air at atmospheric pressure and 20 degree Celsius flows with 6 m/s vel...
Q = h A d t, Area = 2 (a + b) (1) = 2.4 m2, h = 365.34 k/l.
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Air at atmospheric pressure and 20 degree Celsius flows with 6 m/s velocity through main trunck duct of air conditioning system. The duct is rectangular in cross-section and measures 40 cm by 80 cm. Determine heat loss per meter length of duct corresponding to unit temperature difference. The relevant thermos-physical properties of air arev = 15 * 10-6m2/sα = 7.7 * 10-2m2/hrk = 0.026 W/m degreea)32.768 Wb)42.768 Wc)52.768 Wd)62.768 WCorrect answer is option 'B'. Can you explain this answer?
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Air at atmospheric pressure and 20 degree Celsius flows with 6 m/s velocity through main trunck duct of air conditioning system. The duct is rectangular in cross-section and measures 40 cm by 80 cm. Determine heat loss per meter length of duct corresponding to unit temperature difference. The relevant thermos-physical properties of air arev = 15 * 10-6m2/sα = 7.7 * 10-2m2/hrk = 0.026 W/m degreea)32.768 Wb)42.768 Wc)52.768 Wd)62.768 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 Air at atmospheric pressure and 20 degree Celsius flows with 6 m/s velocity through main trunck duct of air conditioning system. The duct is rectangular in cross-section and measures 40 cm by 80 cm. Determine heat loss per meter length of duct corresponding to unit temperature difference. The relevant thermos-physical properties of air arev = 15 * 10-6m2/sα = 7.7 * 10-2m2/hrk = 0.026 W/m degreea)32.768 Wb)42.768 Wc)52.768 Wd)62.768 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 Air at atmospheric pressure and 20 degree Celsius flows with 6 m/s velocity through main trunck duct of air conditioning system. The duct is rectangular in cross-section and measures 40 cm by 80 cm. Determine heat loss per meter length of duct corresponding to unit temperature difference. The relevant thermos-physical properties of air arev = 15 * 10-6m2/sα = 7.7 * 10-2m2/hrk = 0.026 W/m degreea)32.768 Wb)42.768 Wc)52.768 Wd)62.768 WCorrect answer is option 'B'. Can you explain this answer?.
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