<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:16px"><div><span></span></div><div></div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3062">Hi,</div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3074"><br id="yui_3_16_0_1_1454824176818_9107"></div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3075" dir="ltr">I am making some annual system performance analysis, and I am not sure about how Trnsys performes some calculations.</div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3121" dir="ltr"><br id="yui_3_16_0_1_1454824176818_9111"></div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3122" dir="ltr">I am using Type24 to integrate some outputs over a time interval from simulation START to STOP (i.e. one year). I would like to make some simple equations using a few of the Type24 outputs and compare some values .</div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3356" dir="ltr"><br id="yui_3_16_0_1_1454824176818_9115"></div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3357" dir="ltr"><br id="yui_3_16_0_1_1454824176818_9118"></div><div id="yiv7179004241yui_3_16_0_1_1454783917989_3148" dir="ltr">I am not certain how Trnsys performes these calculations.</div><div id="yui_3_16_0_1_1454824176818_9448" dir="ltr"><br></div><div id="yui_3_16_0_1_1454824176818_9457" dir="ltr">Does Type24 integrate over a given time interval first, and mathematical operations defined by the equations are carried out with the integrated value at the end of that time interval (at the end of the simulation/year), or, are these operations carried out as defined by the equations for every timestep and then summed?</div><div id="yui_3_16_0_1_1454824176818_9458" dir="ltr"><br></div><div id="yui_3_16_0_1_1454824176818_9459" dir="ltr">Marko</div></div></body></html>