Reconsider Prob. 1125. Using EES (or other) software, plot the rate of heat loss through the window
Question:
Reconsider Prob. 1–125. Using EES (or other) software, plot the rate of heat loss through the window as a function of the U-factor. Discuss the results.
Data From Problem 125
The rate of heat loss through a unit surface area of a window per unit temperature difference between the indoors and the outdoors is called the U-factor. The value of the U-factor ranges from about 1.25 W/m2 · K (or 0.22 Btu/h · ft2 · °F) for low-e coated, argon-filled, quadruple-pane windows to 6.25 W/m2 · K (or 1.1 Btu/h · ft2 · °F) for a single-pane window with aluminum frames. Determine the range for the rate of heat loss through a 1.2-m × 1.8-m window of a house that is maintained at 20°C when the outdoor air temperature is 28°C.
Step by Step Answer:
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar