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MMLU-Pro / 11946 / A ventilating duct with non-gray interior surfaces, at temperatureT_w= 600°K,…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A ventilating duct with non-gray interior surfaces, at temperatureT_w= 600°K, has a uniform thickness of 12 mm andabsorption coefficient 120/m. A vapor at 1100°K is flowingthrough the channel. The black bodyradiosityof the vaporincreases linearly, at each wall over the boundary layerthickness of 2 mm, and reaches a constant value at the outletof the duct. Calculate the resultant radiant heat transferat the wall.

category

engineering

options

  1. 4.5 × 10^4 W/m^2
  2. 8.0 × 10^3 W/m^2
  3. 1.5 × 10^4 W/m^2
  4. 2.5 × 10^4 W/m^2
  5. 2.0 × 10^4 W/m^2
  6. 3.5 × 10^4 W/m^2
  7. 5.0 × 10^3 W/m^2
  8. 6.0 × 10^4 W/m^2
  9. 1.0 × 10^4 W/m^2
  10. 7.5 × 10^4 W/m^2

src

stemez-HeatTransfer

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Source and history

upstream_id / Original problem ID
11946
task_id
696e6320-3bad-5bc5-87e0-1445aaea7070
task_key
default--test--11946
task_revision_id
1
config / split
default / test

Official source

initial import