Dear Sirs,<div><br></div><div>I model an underfloor system with flat solar collectors (TRNSYS 16). Are the absorber plate's absorptance and emittance the most important technical data? Are any other type for flat solar collectors which can get as inputs more technical data?</div>
<div>Thank you.</div><div><br></div><div>Regards,</div><div>Eva</div>