<div dir="ltr"><div><br clear="all">Hi</div> <div> </div> <div>I am thinking to use Esp-r to simulate the solar performace of shading device ( for exampe, the shading device integrated with solar collector) . one of the task is to calculate the  solar radiation received by the surface of the external shading device.</div> <div> </div> <div>there are two questions for the calculation of incident radiation :</div> <div> </div> <div>1 can esp-r calculate the insolation for the external face of surface? (The shading and insolation program (ish) can only calculate the distribution of insolation within ZONE ?)</div> <div> </div> <div> </div> <div>2 as we know, the Incident Radiation of Surface = Unshaded Fraction * Incident Beam Radiation + Sky View Facter * Incident Diffuse Radiation + Ground Diffuse Radiation</div> <div>to calculate the component of diffuse radiation ( the 2rd term)  , the fraction of Sky View Facter must be known, is there any application can calculate the SVF? ( it seems that the application of ESPmrt  only calculate the viewfactors between surfaces within A ZONE)</div> <div> </div> <div> </div> <div>many thanks for your help.</div> <div><br>-- <br>Sean Lu<br>1st floor SRB<br>School of the Built Environment<br>The university of Nottingham<br>NG7 2RD<br>[m] 0775 144 5367<br>[O] 0115 84 67260<br>[e ]<a href="mailto:laxcl@nottingham.ac.uk">laxcl@nottingham.ac.uk</a><br> <br>trees Before printing Please think about the environment </div></div>