| | Z. Al-Hamamre, K. Wawrzinek D. Trimis, S. Diezinger | VDI-GET Verbrennung und Feuerungen Deutscher Flammentag | Cottbus-Germeny | September 2003 | Lecturer | |
| | Z. Al-Hamamre, K. Wawrzinek D. Trimis, S. Diezinger | VDI-GET Verbrennung und Feuerungen Deutscher Flammentag | Cottbus-Germeny | September 2003 | Lecturer | |
| | S. Diezinger, Z. Al-Hamamre, F. von Issendorff, D. Trimis | Fuel Cells Science & Technology, | München, Germany | Oktober 2004 | Lecturer | |
| | Z. AL-Hamamre, A. Mach, S. Diezinger, F. von Issendorff, D. Trimis | 6th HiTACG Symposium | Essen, Germany | October 2005. | Lecturer | |
| | Z. Al-Hamamre, S. Diezinger, P.Talukdar, F. von Issendorff, D. Trimis | WasteEng 05 | Albi (France) | Mai 2005. | Lecturer | |
| | Z. AL-Hamamre, S. Diezinger, A. Mach, F. von Issendorff , D. Trimis | 8th International Conference on Technologies and Combustion for a Clean Environment (Clean Air VIII) | Lisbon- Portugal | Juni 2005. | Lecturer | |
| | S. Diezinger, Z. Al-Hamamre. M. Steven, J. Schäfer, B. Vogel, D. zur Megede, F. von Issendorff, D. Trimis | 8th International Conference on Technologies and Combustion for a Clean Environment (Clean Air VIII) | Lisbon, Portugal | Juni 2005. | Lecturer | |
| | O. van Rheinberg, J. vom Schloss, K. Lucka, H. Köhne, Z. Al-Hamamre, D.Trimis | 9th Conference on Energy for a Clean Environment | Lisbon, Portugal | July 2007 | Lecturer | |
| | Z. Al-Hamamre, D. Trimis, K. Wawrzinek | 7th International Conference on Technologies and Combustion for a Clean Environment (Clean Air VII) | Lisbon, Portugal | July 2003. | Lecturer | |
| | Z. Al-Hamamre | 2009 AIChE Spring National Meeting: Fuel Processing for Hydrogen Production from Fossil Fuels | Tampa, FL. USA | April 2009 | Lecturer | |
| | Z. Al-Hamamre, S. Voß, D. Trimis | Proceedings of the European Combustion Meeting 2007 | Crete-Greece | April 2007 | Others | Poster |
| | Z. Al-Hamamre, D. Trimis, K. Wawrzinek | 7th International
Conference on Technologies and Combustion for a Clean Environment
(Clean Air VII | Lisbon, Portugal | 2003 | Participant | |
| | Z. Al-Hamamre, D. Trimis, K. Wawrzinek | 3rd European
Conference on Small Burner and Heating Technology ECSBT3 | Aachen, | 2003 | Participant | |
| | Z. Al-Hamamre, S. Voß, A. Al-Zoubi, D. Trimis, | 23ed Deutscher Flammentag | Berlin-Germany | September 2007. | Lecturer | |
| | Z. Al-Hamamre, S. Voß, A. Al-Zoubi, D. Trimis | 9th Conference on Energy for a Clean Environment | Lisbon- Portugal | July 2007 | Lecturer | |
| | Fawaz K. Sweis, Ali Matar, Yousef Mubarak and Zayed Al Hamamre, | 2nd International Chemical Engineering Conference, | Jordan | 12-13 October 2010 | Lecturer | |
