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    <p>Adnan,</p>
    <p>  All modes of the solar radiation processing algorithms (whether
      they are in Type15 or Type16) take into account the slope of the
      receiving surface (as well as the surface direction that it
      points).</p>
    <p>kind regards,</p>
    <p> David</p>
    <p><br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 05/28/2017 07:57, adnan rasheed via
      TRNSYS-users wrote:<br>
    </div>
    <blockquote
cite="mid:CAG9tXZierGw0HdGsPR-Nhhd80U824GOm+cym7NnCinUbE6fC6A@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hello everyone,
        <div><br>
        </div>
        <div>i am trying to evaluate the effect of tilt roof angle  on
          solar energy gain of the building. my building has all window
          on roof. it seems all works well but my results are from
          increasing roof angle 1 degree from 15 to 30 degree solar gain
          decrease constantly. but infect it should increase near 25
          somewhere and again should decrease. i don't know which mode
          of solar radiation processor is dependent on angle of the
          surface... can anybody help me with this..   </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>Regards</div>
        <div>Adnan Rasheed</div>
        <div>PhD student</div>
      </div>
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    <br>
    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>

<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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