<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_1_1442841238647_6212">Dear David,<br class="" id="yui_3_16_0_1_1442841238647_7214"><br class="" id="yui_3_16_0_1_1442841238647_7216">I doing a simulation of a solar cooling system( collector, absorption chiller and building) and everything seems fine but I want to do an Energy balance for the whole system. So I calculated as Energy in (Useful heat from collector+Electricity consumed in the whole system such as pumps ,fan,chiller and tower fan+Building cooling load which I calculated separately assuming unlimited cooling power) and for Energy out ( heat subtract in cooling tower+pipes, duct and fan losses).<br class="" id="yui_3_16_0_1_1442841238647_7218"><br class="" id="yui_3_16_0_1_1442841238647_7220">I found there was around one kWh difference during July of the second year simulation time.<br class="" id="yui_3_16_0_1_1442841238647_7222"><br class="" id="yui_3_16_0_1_1442841238647_7224">My questions are:<br class="" id="yui_3_16_0_1_1442841238647_7226"><br class="" id="yui_3_16_0_1_1442841238647_7228">1-Do you think that's correct? if not correct me, please.<br class="" id="yui_3_16_0_1_1442841238647_7232">2- I found there was no way to calculate cooling load while running the simulation, so I calculated it separately. any idea?<br class="" id="yui_3_16_0_1_1442841238647_7236">3-When I come to (pipes, duct and fan loss) some of cold pipe will gain heat instead of lost it, so should I add it to heat losses or subtract it?<br class="" id="yui_3_16_0_1_1442841238647_7240">Any idea I will appreciate that.<br class="" id="yui_3_16_0_1_1442841238647_7242"><br class="" id="yui_3_16_0_1_1442841238647_7244">I look forward to hearing from you as soon as possible.<br class="" id="yui_3_16_0_1_1442841238647_7246"><br class="" id="yui_3_16_0_1_1442841238647_7248">Regards,<br class="" id="yui_3_16_0_1_1442841238647_7250"><br class="" id="yui_3_16_0_1_1442841238647_7252">Safwan Kanan<br class="" id="yui_3_16_0_1_1442841238647_7254"><br class="" id="yui_3_16_0_1_1442841238647_7256">PhD student at the University of Manchester<br class="" id="yui_3_16_0_1_1442841238647_7260">Manchester<br class="" id="yui_3_16_0_1_1442841238647_7264">M13 9PL<br class="" id="yui_3_16_0_1_1442841238647_7268">UK<br></div><br></div></body></html>