Experimental study of water cooling effect on heat transfer to increase output power of 180 watt peak photovoltaic moduleArrad Ghani Safitra, Fifi Hesty Sholihah, Erik Tridianto, Ikhsan Baihaqi and Ni Nyoman Ayu Indah T.E3S Web Conf., 67 (2018) 01009DOI: https://doi.org/10.1051/e3sconf/20186701009