Krzysztof J. Ptasinski has more than 40 years of experience in academic teaching and research in chemical engineering and energy technology. He has held appointments at Eindhoven University of Technology, the University of Twente, the Warsaw University of Technology, as well as a visiting professorship at the Silesian University of Technology. His has conducted pioneering research on the application of exergy analysis to biomass and bioenergy. He is the author or co-author of more than 200 publications, including 19 book chapters and 75 research papers. He is subject editor for biomass and bioenergy for Energy, the International Journal.