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Hydrogen Energy
Abstract
Hydrogen energy involves the use of hydrogen and/or hydrogen-containing compounds to generate energy to be supplied to all practical uses needed with high energy efficiency, overwhelming environmental and social benefits, as well as economic competitiveness. The world is presently experimenting the dawning of hydrogen energy in all sectors that includes energy production, storage, and distribution; electricity, heat, and cooling for buildings and households; the industry; transportation; and the fabrication of feedstock. Energy efficiency and sustainability are two important factors driving the transition from the present fossil fuel-based economy to a circular economy, that is, a renewable circular sustainable fuel utilization cycle that will characterize the highly efficient engineering and the energy technological choices of the 21st century. This chapter analyzes advanced technological options for hydrogen production and discusses methods and prospects of its utilization in the main energy sectors to fully implement the use of hydrogen energy technologies. The unexpected possibility of discovering and harvesting natural hydrogen on earth once believed inexistent is unveiled and analyzed for understanding possible geological interpretations to guide the future activity of sustainable and perennial fuel.
Energy Conversion
Canan Acar, Ibrahim Dincer, in Comprehensive Energy Systems, 2018
Abstract
Hydrogen energy conversion systems are expected to become the choice of future energy systems. It is possible to produce hydrogen from sustainable and renewable sources. Therefore hydrogen has the potential to sustainably meet the growing global energy requirements. Hydrogen energy conversion options are diverse, and generally more efficient and almost always more environmentally benign compared to traditional energy systems. Therefore this chapter comprehensively discusses traditional and novel hydrogen energy conversion systems from physical conversion to all chemical energy conversion options including combustion and electrochemical conversion. The conversion of hydrogen energy is fairly simple in comparison to the existing options to convert traditional fossil fuels. Another advantage of hydrogen energy conversion systems is the fact that the supply (hydrogen) comes from a variety of energy sources, therefore, nobody is expected to have the power to regulate hydrogen supply and distribution. Hydrogen is an energy carrier; this implies that it could be used to store energy when not needed and then makes the stored energy available when the primary energy source is not available or sufficient. Hence, hydrogen is particularly a good fit for renewable energy systems. And hydrogen energy conversion systems help end-users reach clean, abundant, reliable, and sustainable renewable energy resources at all times. For instance, a surplus of renewable energy production could be utilized to produce hydrogen first. And then, hydrogen energy conversion systems could help all end users have access to this surplus energy at all times in a sustainable fashion. With hydrogen energy conversion systems, hydrogen can be converted to many valuable products for end-users, such as power, heating, cooling, clean water, pharmaceuticals, plastics, etc., which are discussed thoroughly in this chapter.
Music Credit :
Martian Cowboy Kevin MacLeod (incompetech.com)
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