11.19 A long rod, with a diameter of 3 mm, is placed in a vacuum parallel to a large and flat heated surface. The other side of the rod is exposed to vacuum chamber walls at 300 K. Assume that the heated surface and the surface of the rod are both gray with equal emissivities of 0.7. The rod has a volumetric heat capacity of pc, = 6.7 × 106J m³ K¨¹. Calculate the heating rate of the rod at 335 K, 500 K, 700 K, and 800 K. Rod Heated surface at 830 K
11.19 A long rod, with a diameter of 3 mm, is placed in a vacuum parallel to a large and flat heated surface. The other side of the rod is exposed to vacuum chamber walls at 300 K. Assume that the heated surface and the surface of the rod are both gray with equal emissivities of 0.7. The rod has a volumetric heat capacity of pc, = 6.7 × 106J m³ K¨¹. Calculate the heating rate of the rod at 335 K, 500 K, 700 K, and 800 K. Rod Heated surface at 830 K
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.24P: Two large parallel plates with surface conditions approximating those of a blackbody are maintained...
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Transcribed Image Text:11.19 A long rod, with a diameter of
3 mm, is placed in a vacuum parallel
to a large and flat heated surface. The
other side of the rod is exposed to
vacuum chamber walls at 300 K.
Assume that the heated surface and the
surface of the rod are both gray with
equal emissivities of 0.7. The rod has
a volumetric heat capacity of
pc, = 6.7 × 106J m³ K¨¹. Calculate
the heating rate of the rod at 335 K,
500 K, 700 K, and 800 K.
Rod
Heated surface
at 830 K
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