Hydrogen as an energy carrier for fuel cell Systems. Environmental consequences for using Hydrogen as a secondary energy carrier

Hydrogen (H-2) as a secondary energy carrier is one of the promising solution for energy conversion applications in the future. Fuel cells (FC) as chemical conversion systems which are driven with H-2 can increase the overall efficiency of energy conversion, reducing greenhouse gas emissions and the possible dependencies of fossil energy sources in the future. This article shows the dependencies between the primary energy sources and FC applications. The aim of the scientific paper is to show the possible consequences of the environmental impact using H-2. Three aspects are looked more in details. First aspect is the transforming process for producing environmental friendly H-2 with comparable energy prices. Second aspect are the FC applications and there potential increasing efficiency and reducing harmful fuels. The third aspect is the environmental impact of using H-2 for such energy conversion processes. Thermodynamic and chemical dependencies are crucial. Methodologically a model is used to show the different dependency of this energy conversion processes. Parameter like efficiency of the primary energy conversion process, efficiency of the FC system, will be considered The result of the research shows the crucial aspects to use H-2 as a secondary energy carrier. The statements made in this article can help stakeholder around H-2 and energy conversion processes.