Al-Wahid, W.A.A. and Al-Shamkhee, D.M.H. 2016. THERMAL LOSSES REDUCTION FOR A TROUGH SOLAR COLLECTOR: PART 1 FLUID FLOW. Kufa Journal of Engineering. 7, 2 (Jul. 2016), 20–37. DOI:https://doi.org/10.30572/2018/KJE/721212.