Dear all,<br><br>I am using flat plate as well as evacuated tube solar collector. I want to simulate the system and find out the dynamic efficiency of the collector, not the static one. static one is energy out/energy in = m.Cp.(To-Ti) / GA. but due to dynamic changes of solar radiation, it doesn't give good thermal performance of the collector. so I want to find out the dynamic efficiency, efficiency over time and tube length.<br>
<br>Thanking in advance.<br><br>Regards,<br>Mahbubul Muttakin<br>