Evaluation of the Risk Factors on Coal Dust Explosion in Warehouse Latana Chanthaphasouk, Kreangkrai Maneeintr, Pinyo Meechumna, Suteera Luengwattanapong and Chantamanee Poonjarernsilp MATEC Web Conf., 77 (2016) 06014 Published online: 03 October 2016 DOI: 10.1051/matecconf/20167706014