Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors

<table>Color map reconstruction of slope differences <svg height="15.8625" id="M52" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 20.9125 15.8625" width="20.9125" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.363)"><path d="M600 0h-557v24l268 633l28 8l261 -641v-24zM497 50l-194 489l-196 -489h390z" id="x394"></path></g><g transform="matrix(.017,-0,0,-.017,10.959,11.363)"><use xlink:href="#x1D711"></use></g>
</svg> (rad)  considering horizontal lines.</table>

International Journal of Photoenergy

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Figure 9

Figure 9: Evaluation of Surface Slope Irregularity in Linear Parabolic Solar Collectors 