Volkan KALENDER is a Ph.D. candidate in Mechanical Engineering at Marmara University, Türkiye. He is also a teacher in the Automotive Technology Program at Alibeyköy Vocational and Technical Anatolian High School, where he is actively involved in vocational and technical education, focusing on internal combustion engines, vehicle systems, and applied automotive technologies. Through his teaching activities, he contributes to the training of skilled technicians and supports the integration of theoretical knowledge with practical applications. His research interests primarily focus on fuel performance, exhaust emissions, and alternative fuels for internal combustion engines. In particular, his doctoral research concentrates on advanced combustion strategies and the utilization of renewable and low-cost fuels in compression ignition engines, with an emphasis on improving combustion efficiency while reducing emissions. His work includes experimental investigations of fuel blends, combustion characteristics, emission formation mechanisms, and techno-economic assessments such as operating and life cycle cost analyses.