Changeset 2757

Timestamp:

10/30/09 04:39:21 (4 weeks ago)

Author:

wark

Message:

changes to energy

Files:

• HydroWatch/Tim/doc/ipsn10/sec_energy.tex (modified) (2 diffs)

HydroWatch/Tim/doc/ipsn10/sec_energy.tex

@@ -18 +18 @@
 $E_h$ with the atmospheric estimation $E_a$ gives 
 gives the solar radiation variation under weather condition $\delta$:
-\begin{align*}
+\begin{equation}
 \delta = E_h / E_a
-\end{align*} 
+\end{equation} 
 With the atmospheric model model, the effective sunlight that shines on 
 the solar panel is proportional to $\cos\Theta$ when the angle of sunlight 
@@ -30 +30 @@
 \cos \Theta & = \cos \theta_p \cdot \cos \theta_s + \sin \theta_p \cdot \sin \theta_s \cdot \cos (\phi_p - \phi_s) \notag \\
 \cos \theta_s & = \sin \delta \cdot \sin L + \cos \delta \cdot \cos L \cdot \cos h \notag \\
-\sin \phi_s & = -\cos \delta \cdot \sin h / \sin \theta_s \notag \\
-x & = 2 \pi n / 365 \notag \\ 
-h & = 15 (t - 12) \notag \\ 
-\delta & = 0.302 - 22.93 \cos x - 0.229 \cos 2x - 0.243 \cos 3x \notag \\
-      & \text{~~~~} + 3.851 \sin x + 0.002 \sin 2x - 0.055 \sin 3x \notag
+\sin \phi_s & = -\cos \delta \cdot \sin h / \sin \theta_s
+%x & = 2 \pi n / 365 \notag \\ 
+%h & = 15 (t - 12) \notag \\ 
+%\delta & = 0.302 - 22.93 \cos x - 0.229 \cos 2x - 0.243 \cos 3x \notag \\
+%      & \text{~~~~} + 3.851 \sin x + 0.002 \sin 2x - 0.055 \sin 3x \notag
 \end{align}
 Figure~\ref{fig:model} illustrates an instance of the atmospheric