subject
Engineering, 04.11.2019 22:31 dayday0

The 150-mm-thick wall of a gas-fired furnace is con- structed of fireclay brick (k = 1.5 w/m⋅k, rho = 2600 kg/m3, cp = 1000 j/kg ⋅ k) and is well insulated at its outer surface. the wall is at a uniform initial tempera- ture of 20°c, when the burners are fired and the inner surface is exposed to products of combustion for which t[infinity] = 950°c and h = 100 w/m2 ⋅ k. (a) how long does it take for the outer surface of the wall to reach a temperature of 750 degree c?

(b) plot the temperature distribution in the wall at the foregoing time.

ansver
Answers: 3

Other questions on the subject: Engineering

image
Engineering, 03.07.2019 14:10, makaylashrout77
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
image
Engineering, 04.07.2019 18:10, bunnles
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
image
Engineering, 04.07.2019 18:10, Tyrant4life
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
image
Engineering, 04.07.2019 18:20, CelesteN64
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
You know the right answer?
The 150-mm-thick wall of a gas-fired furnace is con- structed of fireclay brick (k = 1.5 w/m⋅k, rho...

Questions in other subjects:

Konu
Social Studies, 07.12.2020 17:30
Konu
Computers and Technology, 07.12.2020 17:30