The global energy and environmental situations have intensified the use of alternative and clean fuels. This is true for city buses, taxis, delivery vehicles and personal cars. The unique properties of hydrogen make it suitable as a fuel for vehicles powered with both, internal combustion or electric engines, too. However, the problems associated with the production and storage of hydrogen currently limits the application of pure hydrogen as engine fuel for vehicles. As a contribution to the global strategy, this paper focuses on designing of city bus for hydrogen power using an original propulsion system.

The concept of gaseous hydrogen storage under high pressure is analyzed here. In the bus on hydrogen, the cylinders with this fuel are mounted on the roof because of reasons of little available space. In the paper is proposed a method for the reconstruction of the bus, with respect to the installation of specific components for the use of compressed hydrogen gas as well as for the implementation of fire protection system.

Saša Milojević