Solar Engineering of Thermal Processes, 4th Edition

Chapter 14

14.1 For a vertical collector-storage wall located in Albuquerque and having dimensions and overhang as described in Problem 2.25, estimate the monthly average absorbed radiation for the month of April. The wall is double glazed with glass of per sheet. The of the wall is 0.89.

14.2 A direct-gain system has the same geometry as that used to calculate Figure 14.4.3 but is located in Madison, WI. The ground reflectance is 0.6 in December and January, 0.4 in November and February, and 0.2 for other months.

a. For the month of March, estimate the beam, the diffuse, the ground-reflected, and the total radiation on the shaded receiver and also the total radiation if there were no shading.

b. Repeat for each month of the year and prepare a plot like Figure 14.4.3.

14.3 Redo Example 14.5.1 with these changes: The location is Minneapolis, , the gap is 0.25 m, and the month is February (). What is the net gain (or loss) from the window?

14.4 What would be the effect of adding night ...