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MMLU-Pro / 11956 / Air entering a tube of diameter 5.08cm (2 in.) is at 1 atm. and 150°C. It is…

Problem

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

question

Air entering a tube of diameter 5.08cm (2 in.) is at 1 atm. and 150°C. It is heated as it moves through the pipe at a velocity of 8m/sec. Determine the heat transfer per unit length of tube, assuming that a con-stant heat flux exists at the wall, and that the wall temperature is everywhere 20°C above the air temperature. What is the bulk temperature rise through a 2m length of pipe?

category

engineering

options

  1. 16.9°C
  2. 18.2°C
  3. 15.8°C
  4. 13.4°C
  5. 8.6°C
  6. 11.1°C
  7. 12.3°C
  8. 9.7°C
  9. 14.6°C
  10. 10.2°C

src

stemez-TransportPhenomena

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Source and history

upstream_id / Original problem ID
11956
task_id
a3fee375-59b9-50be-8476-6517d1fc4d45
task_key
default--test--11956
task_revision_id
1
config / split
default / test

Official source

initial import