Abstract
Large (40%) reductions in pressure vessel cost are possible by operating buses with foam-insulated cryo-compressed hydrogen (ccH2) vessels. Detailed thermodynamic analysis reveals that large size and rapid H2 consumption in buses compensate for the poor performance of foam insulation (~100X more conductive than vacuum multilayer insulation), resulting in compact and inexpensive H2 storage systems with sufficient H2 capacity for the longest routes (500 km) while maintaining previously identified advantages of ccH2 systems: increased autonomy, rapid high density refueling, and improved safety, while simultaneously avoiding vacuum stability problems resulting from composite resin outgassing.
Biography
Dr. Julio C. Moreno-Blanco is a mechanical engineer and PhD-level researcher specializing in hydrogen storage and refueling technologies for sustainable mobility. His expertise includes cryo-compressed, compressed, and subcooled hydrogen systems, with a strong background in thermodynamics, heat transfer, and high-pressure safety analysis. He is currently a Professor at the Superior Technological Institute of Irapuato, Mexico, where he teaches mechanical and thermal engineering and conducts applied research on advanced hydrogen storage systems. Dr. Moreno-Blanco has collaborated with international research institutions (including Lawrence Livermore National Laboratory) and industry partners, authored multiple peer-reviewed journal articles, and co-invented several patents related to cryo-compressed hydrogen technologies.