My name is Youcef Redjeb, At this time, I’m an early career researcher at the University of El Oued, Algeria, after the completion of my PhD degree in Process and Environmental Engineering at the National Polytechnic School of Constantine – Algeria. In which I was enrolled in some researches with a topic focused on waste heat recovery from cement industries using ABC, SRC and also ORC technologies, where a techno-economic examination of the mentioned technologies has been conducted through the development of two different tools called ABC optimizer, and IRC-PD Tool, these tools are able to design, optimize, and also carry out economic and environmental analyses for these technologies. During my PhD, I had the opportunity to conduct part of my research at the level of the University of Padova – Italy, this helped me a lot to gain acceptable international experience in this field and have a larger view of the domain.