Thermodynamics HW Solutions 889

Thermodynamics HW - q_dot_loss=epsilon*sigma(T_s^4-T_sky^4 h(T_s-T_air α s q net[W/m 2 0.5-185.5 0.525-170.5 0.55-155.5 0.575-140.5 0.6-125.5

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 11 Fundamentals of Thermal Radiation 11-62 "!PROBLEM 11-62" "GIVEN" "alpha_s=0.87 parameter to be varied" epsilon=0.09 G_solar=600 "[W/m^2]" T_air=25+273 "[K]" T_sky=15+273 "[K]" T_s=70+273 "[K]" h=10 "[W/m^2-C]" sigma=5.67E-8 "[W/m^2-K^4], Stefan-Boltzmann constant" "ANALYSIS" q_dot_net=q_dot_gain-q_dot_loss "energy balance" q_dot_gain=alpha_s*G_solar
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: q_dot_loss=epsilon*sigma*(T_s^4-T_sky^4)+h*(T_s-T_air) α s q net [W/m 2 ] 0.5 -185.5 0.525 -170.5 0.55 -155.5 0.575 -140.5 0.6 -125.5 0.625 -110.5 0.65 -95.52 0.675 -80.52 0.7 -65.52 0.725 -50.52 0.75 -35.52 0.775 -20.52 0.8 -5.525 0.825 9.475 0.85 24.48 0.875 39.48 0.9 54.48 0.925 69.48 0.95 84.48 0.975 99.48 1 114.5 11-27...
View Full Document

This note was uploaded on 01/24/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.

Ask a homework question - tutors are online