A glass window 1.1-m-high and 2-m-wide with room temperature of 25°C and temperature of the inner surface of the window is 5°C. Determine the rate of heat transfer by free convection from the room to the window. Take properties of air: k = 0.02476 W/m.C, v = 1.47*10^-5 m2/s, Pr = 0.7323, B= 1/Tf = 0.003472 K^-1. Select one: a. 220 W b. 157 W c. 173 W d. 166 W

A glass window 1.1-m-high and 2-m-wide with room temperature of 25°C and temperature of the inner surface of the window is 5°C. Determine the rate of heat transfer by free convection from the room to the window. Take properties of air: k = 0.02476 W/m.C, v = 1.47*10^-5 m2/s, Pr = 0.7323, B= 1/Tf = 0.003472 K^-1. Select one: a. 220 W b. 157 W c. 173 W d. 166 W

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 1.48P: A horizontal, 3-mm-thick flat-copper plate, 1-m long and 0.5-m wide, is exposed in air at 27C to...

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