Oxy-fuel combustion power plants use pulverized coal particles as fuel to burn in a pure oxygen environment to generate electricity. Before entering the furnace, pulverized spherical coal particles with an average diameter of 300 mm, are being transported at 2 m/s through a 3-m long heated tube while suspended in hot air. The air temperature in the tube is 900°C and the average convection heat transfer coefficient is 250 W/m2·K. Determine the temperature of the coal particles at the exit of the heated tube, if the initial temperature of the particles is 20°C.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Oxy-fuel combustion power plants use pulverized
coal particles as fuel to burn in a pure oxygen environment to
generate electricity. Before entering the furnace, pulverized
spherical coal particles with an average diameter of 300 mm,
are being transported at 2 m/s through a 3-m long heated tube
while suspended in hot air. The air temperature in the tube is
900°C and the average convection heat transfer coefficient is
250 W/m2·K. Determine the temperature of the coal particles
at the exit of the heated tube, if the initial temperature of the
particles is 20°C.

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