ИСТИНА

Present work aims on the development an advanced hydrogen storage and supply system with a wide range of output pressures (up to 80 MPa) using low-grade heat sources (<100 ° C) to heat and release hydrogen from metal hydrides (MH) and convert it into high-pressure hydrogen. Preliminary studies showed that to reach the specified conditions the whole system has to be a four-stage one. The alloy compositions were determined using statistical model developed in MSU. At present, three-stage hydrogen compression system has been developed, including rare earth based and Ti-Cr-Mn hydrogen storage materials. The output pressure at 90 ℃ reaches 42.97 MPa, which has the advantages of good hydrogen storage performance, low plateau pressure hysteresis and wide flat platform for hydrogen absorption and desorption. The transition toward carbon-free transportation is only possible by adopting renewable energy alternatives. Part of the project has the aim to present a study on a renewable energy-based hydrogen refuelling station from an energy point of view. The proposed system comprises a photovoltaic plant, water electrolysis sub-system, hydrogen compression, storage and distribution section based on MHHC for compressing hydrogen. The analytical study focuses on the energy assessment of the small-scale hydrogen refuelling station being able to provide hydrogen to the fuel cell-driven electrical bicycles. The thermal modelling of the plant is carried out and the energy and mass balances are used to evaluate the overall system performance. Acknowlegement Cooperative project BRICS2019-032 was supported by BRICS national annexes of Russian Federation, China and India. Part of this work was performed according to the Development program of the Interdisciplinary Scientific and Educational School of Lomonosov Moscow State University «The future of the planet and global environmental change», and was supported by the Ministry of Science and Higher Education of the Russian Federation, projects # AAAA-A16-116053110012-5 and 122012400186-9