He has over 100 scientific publications and is a Member of Hydrogen IEA-Task 32. The H2 based vehicular technological developments, andĬhallenges associated with this technology will be presented.ĭhanesh Chandra is a Foundation Professor of Materials Science and Engineering in the College of Engineering at the University of Nevada Reno, USA. Systems, Toyota and other manufacturers started using high pressure (~700 bar) H2, carbon fiber composite, cylinders whichĪppear to be functional in the latest vehicles under normal operations. Light weight systems with ~10 to 18 wt.% H capacity are still in developmental stages. Light weight and low pressure (LP) complex hydrides, such as Mg(BH4)2, Li2NH-LiNH2 and other Low pressure, solid state metal hydrides, such as LaNi4.8Sn0.2, haveĪlready been developed for space applications, but they are very heavy and have low gravimetric hydrogen density of ~2 wt.%įor vehicular applications. Relatively few clustered around big, highly populated cities. Many countries are installing hydrogen fueling stations but they are In the last 10-15 years manyĪuto manufacturers, including Toyota, Honda, Hyundai, Ford, General Motors, Daimler Chrysler and others have developedįuel cell vehicles, some are already becoming commercial. Significant advancements in fuel cell technologies and initiatives offered by the US DOE, world-wide governmentalĪgencies, and industries led to the development of prototypes H2-fuel cell electric automobiles. Early developments (from 1960) were focused on H2-IC engine vehicles. Worldwide H2 production is ~ 500 billion.m3 annually with ~6.5 EJ (1EJ=109 GJ) of energy. Specific energy on a mass basis (e.g., the energy content of 9.5 kg of hydrogen is equivalent to that of 25 kg of gasoline). Hydrogen is a non-toxic, clean energy carrier that has high Renewable resources can potentially reduce the CO2 emissions.
World’s energy supply, security, air pollution, and greenhouse gas (GHG) emissions.
Hydrogen is expected to play an important role in future energy scenarios, as it could resolve growing concerns about
0 kommentar(er)
