Chapter 24, Problem 25P

The data listed in the following table gives hourly measurements of heat flux q $\left(\text{cal}/{\text{cm}}^2\text{/h}\right)$ at the surface of a solar collector. As an architectural engineer, you must estimate the total heat absorbed by a 150,000 ${\text{-cm}}^2$ collector panel during a 14-h period. The panel has an absorption efficiency $e_{ab}$ of 45%. The total heat absorbed is given by

$h=e_{ab}{\int }_0^{t}qAdt$

Where $A=$ area and $q=$ heat flux.

t	0	2	4	6	8	10	12	14
Q	0.10	5.32	7.80	8.00	8.03	6.27	3.54	0.20