Thermodynamics HW Solutions 160

Thermodynamics HW Solutions 160 - Chapter 3 Steady Heat...

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

View Full Document Right Arrow Icon
Chapter 3 Steady Heat Conduction 3-18 The two surfaces of a window are maintained at specified temperatures. The rate of heat loss through the window and the inner surface temperature are to be determined. Assumptions 1 Heat transfer through the window is steady since the surface temperatures remain constant at the specified values. 2 Heat transfer is one-dimensional since any significant temperature gradients will exist in the direction from the indoors to the outdoors. 3 Thermal conductivity is constant. 4 Heat transfer by radiation is negligible. Properties The thermal conductivity of the glass is given to be k = 0.78 W/m °C. Analysis The area of the window and the individual resistances are A = (. ( . 12 2 24 m) m) m 2 C/W 06155 . 0 01667 . 0 00321
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/14/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.

Ask a homework question - tutors are online