Practicality and Performance of Daylight Trough in The Tropics: A Case Study Lim Gene-Harn, Gregers Reimann, Gunaseelan Bhaskaran, Michael Hirning and Morten Christensen MATEC Web Conf., 66 (2016) 00032 Published online: 13 July 2016 DOI: 10.1051/matecconf/20166600032