Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in a thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.

Abstract: Disclosed is a unidirectional fiber sheet comprising an arranged fiber layer, a multi axial scrim, and a release paper having 3 to 80% of its surface area coated with an adhesive. The adhesive is applied to the release paper in the form of stripes which may be positioned parallel, perpendicular or oblique to the filaments of the arranged fiber layer. The unidirectional fiber sheet according to the present invention is prepared by partially coating a release paper with an adhesive, and heat-pressing together an arranged fiber layer prepared from filament tows, a multi axial scrim having a net structure to support the arranged fiber layer, and the release paper so as to bind the three together.