1. The Sirindhorn International Thai‐German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB)1518 Pracharat 1 Rd., WongsawangBangsue, Bangkok 10800Thailand
2. Department for Industrial Furnaces and Heat Engineering (IOB), RWTH Aachen UniversityKopernikusstraße 10, 52074 AachenGermany