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The Cambridge Handbook of Hydrogen and the Law is the first comprehensive reference work on the regulation of this key area in the energy transition. It is global in scope, featuring chapters that explain the legal situation on hydrogen regulation in Europe, the USA, Latin America, Oceania, the Middle East / North Africa, and Southeast Asia. It includes chapters covering all relevant legal aspects of the hydrogen value chain from production to end use, making it the first in-depth work on the interplay of hydrogen and the law. Leading scholars and practitioners discuss the creation of hydrogen markets, the role of local authorities, sustainability and public participation in hydrogen regulation, the permitting regimes for electrolysers, offshore hydrogen, the regulation on hydrogen transportation and storage, indigenous perspectives on hydrogen, the regulation of hydrogen in heating and the regulation of electricity storage in the form of hydrogen. This title is also available as Open Access on Cambridge Core.
While energy production (the energy sector) has undergone huge efforts to reduce greenhouse gas emissions, transportation and heating are next to be tackle. Hydrogen could be a solution for one of them, the heating sector. This chapter focuses on the Netherlands as a case study to investigate the (absent) legal framework and the regulatory challenges that the development and deployment of hydrogen in the heating markets face. After an overview of the EU regulatory framework, it delves into the specificities of Dutch legislation. The Netherlands is a suitable object of study because it has instituted concrete initiatives from which the energy supervisor, the Authority for Consumers and Markets (ACM), has created a temporary framework. The analysis reveals significant gaps and inconsistencies in the regulatory landscape and offers concrete suggestions for sector-specific regulation. In addition, the chapter discusses the implications of the regulatory framework for market participants and their behaviour, as well as the role of competition law and potential sector-specific rules in ensuring a level playing field for all market actors. The Dutch experience could potentially generate a model that other EU Member States could follow.
Hydrogen is playing an increasingly important role in China's energy and climate policy, with significant implications for the development of a global hydrogen industry. However, China's approach to the regulation of hydrogen, and, in particular, the role of local authorities in promoting hydrogen refuelling stations and fuel cell vehicles, has so far received limited scholarly attention. This article aims to contribute to the literature on hydrogen regulation and to the transnational environmental law scholarship on decentralization by examining how China promotes hydrogen at the national and local levels. The case of China shows how, in jurisdictions with a sufficient degree of decentralization, local initiatives can play a key role in driving the development of hydrogen. By testing different approaches to hydrogen regulation, local experimentation helps to manage the uncertainties associated with this new energy source. At the same time, China's experience confirms the ‘environmental federalism’ theory on the importance of regulatory harmonization to reduce transaction costs and local protectionism. As the Chinese government develops its national regulatory approach on hydrogen, it has the opportunity to take into account both local and international experience and engage with other major economies in an effort to promote an internationally harmonized regulatory landscape.
Hydrogen is a promising energy carrier to decarbonise aviation. However, many challenges regarding its storage or handling still have to be solved to successfully utilise hydrogen in aircraft and at airport infrastructures. The increasing use of hydrogen also generates opportunities for disruptive improvements, like the possibility to integrate metal hydrides (MHs) into the hydrogen powertrain and its infrastructure. Besides their ability to store hydrogen, MHs enable a wide range of potential secondary functions such as high-power thermal applications or compression. This way, MHs may contribute to achieve the goal of sustainable hydrogen-powered aviation. Hence, potential MH application options and their current state-of-the-art are presented. Based on that overview, the following seven use cases for aviation are selected for evaluation: ‘hydrogen emergency storage’, ‘cabin air-conditioning’, ‘thermal management of fuel cells’, ‘gas gap heat switches’, ‘hydrogen boil-off recovery’, ‘onboard hydrogen compression’ and ‘hydrogen safety sensors’. Four of these use cases are investigated to achieve comparable degrees of detail to avoid misevaluations in the subsequent weighted point rating. The results reveal the high potential of MHs for ‘hydrogen boil-off recovery’, ‘hydrogen safety sensors’ and ‘cabin air-conditioning’. For the three most promising use cases, outlooks to their potential future implementation are provided in order to outline the ability of MHs to empower sustainable aviation. These investigations highlight the huge potential of MHs for boil-off treatment.
The effects of reduction and reoxidation of octahedral Fe3+ on the exchange of structural hydrogen in nontronite were determined using tritium (3H) as a label element. The uptake of H from the surrounding solution of nontronite suspensions increased as the reduction of structural Fe3+ increased. Similarly, the loss of H from the structure increased as the reduction increased. The results are generally consistent with a reduction mechanism involving the loss of structural OH, leaving the affected Fe sites with less than six-fold coordination. The attenuation of increased negative charge on the clay layer, however, was less than predicted by such a mechanism.
During the reoxidation of reduced nontronite in suspension, about one-third of the H remaining as part of the structure following reduction was lost, whereas twice that amount of H was incorporated into the structure from the surrounding solution. A reoxidation mechanism is proposed whereby H2O from the surrounding solution is incorporated into the mineral structure followed by the elimination of a hydrogen ion, returning the Fe to six-fold coordination. This mechanism implies the reversibility of Fe reduction in nontronite.
A structure refinement of kaolinite made using the Rietveld neutron profile refinement technique has given non-hydrogen atom positions which were not significantly different from those given by B. B. Zvyagin in 1960. All of the hydrogen atoms have been located; the three inner-surface hydrogen atoms are involved in interlayer hydrogen bonds with lengths of 2.95(4), 2.95(4), and 3.06(4) Å with O-H ... O angles of 168(4)°, 144(4)°, and 146(4)° respectively. The inner hydrogen atom is located in a position consistent with that found earlier in dickite and muscovite which are the only dioctahedral layer silicates studied by neutron diffraction to date. The O-H vector makes an angle of 34° with the (001) plane, away from the octahedral sheet, and the projection of the vector on to (001) is at ~30° to the b axis.
Explore sustainable electric power generation technology, from first principles to cutting-edge systems, in this in-depth resource. Including energy storage, carbon capture, hydrogen and hybrid systems, the detailed coverage includes performance estimation, operability concerns, economic trade-off and other intricate analyses, supported by implementable formulae, real-world data and tried-and-tested quantitative and qualitative estimating techniques. Starting from basic concepts and key equipment, this book builds to precise analysis of balance of plant operation through data and methods gained from decades of hands-on design, testing, operation and trouble-shooting. Gain the knowledge you need to operate in conditions beyond standard settings and environment, with thorough descriptions of off-design operations. Novel technologies become accessible with stripped-back descriptions and physics-based calculations. This book is an ideal companion for engineers in the gas turbine and electric power field.
One of the most disruptive technologies to impact global markets is the transition to electric vehicles, which is detailed and explained in this chapter.
Hydrogen as a carbon-free fuel is amenable to utilization in all heat engines, including gas turbines and reciprocating internal combustion engines, which are the most efficient technologies for electric power generation from fossil fuels. Alas, H2 is not an energy resource. It is an energy carrier. Prior to its use as a fuel, it must be produced, stored and/or transported. There are significant problems associated with all three phases of the hydrogen fuel chain. Those aspects will be discussed qualitatively and quantitatively in the remainder of the present chapter.
Kenneth I. Kellermann, National Radio Astronomy Observatory, Charlottesville, Virginia,Ellen N. Bouton, National Radio Astronomy Observatory, Charlottesville, Virginia
In a talk given during the German occupation of the Netherlands, Henk van der Hulst discussed possible 21 cm radio emission from interstellar hydrogen atoms but pessimistically concluded that “the existence of the line remains speculative.” Nearly 20 years later, Harvard University PhD student Harold (Doc) Ewen surprisingly detected the 21 cm hydrogen line using a simple horn antenna sticking out the window of his laboratory and a novel frequency switching radiometer. van de Hulst had also calculated the possibility of detecting radio recombination lines from highly excited galactic hydrogen, but overestimated the effect of line broadening. Although he concluded that radio recombination lines are “unobservable,” they were subsequently detected in the USSR and the US. Observations of surprisingly strong radio emission from hydroxyl and water vapor were understood to be due to interstellar masers, which could have been detected much earlier if anyone had thought to look in the right place. Later discoveries of interstellar formaldehyde and carbon monoxide opened the door to a new and highly competitive field of astrophysics – molecular radio spectroscopy.
In this chapter we study the primordial process in which nuclei of atoms formed -- the Big Bang nucleosynthesis, or BBN for short. We show that BBN principally leads to the synthesis of hydrogen and helium, along with a trace amount of a few more of the lightest elements. We describe the basic thermodynamical and nuclear-physics conditions in the early universe, and explain how they determine the primordial origin and abundance of nuclei in the universe. Finally, we illustrate how the lightest-element abundances are in spectacularly good agreement with observations, making BBN one of the pillars of the hot Big Bang cosmological model.
Hydrogen will play an increasingly important role in the push toward greater use of renewable energy and the reduction in carbon emissions from the transportation sector, electrical energy generation and transmission, and the production of commodity chemicals, such as ammonia and polyolefins. In this chapter, the operating principles of fuel cells and electrolyzers are detailed. The main function of these devices is the interconversion of electrical and chemical energy.
Gas turbines play a preeminent role in the stationary power generation marketplace and are expected to remain a critical part of the market mix for the foreseeable future. Alternative technologies compete with gas turbines in certain size classes, but at power generation levels above 5 MW, gas turbines offer the most attractive option due to their relatively low capital, operating, and maintenance costs. The configurations for these systems involve high efficiencies as well. These engines are being looked to by the US Department of Energy and the major OEMs for clean power production, especially considering the use of renewable fuels. As a result, the market will continue to demand gas turbines for the foreseeable future.
Gas turbines are able to utilize a wide variety of fuels, including fuels with low- or zero-carbon content. This includes hydrogen (H2), ammonia (NH3), synthetic and renewable natural gas, as well as a range of biofuels. These are sometimes referred to as zero-carbon, net-zero-carbon, or near-zero-carbon fuels. A subset of these fuels have been used to produce power from gas turbines for decades. This chapter will review experience and practical challenges in the use of these fuels in gas turbines for power generation applications, describing case studies for utilizing these fuels in the field.
Gas turbines play a preeminent role in the stationary power generation marketplace and are expected to remain a critical part of the market mix for the foreseeable future. Alternative technologies compete with gas turbines in certain size classes, but at power generation levels above 5 MW, gas turbines offer the most attractive option due to their relatively low capital, operating, and maintenance costs. The configurations for these systems involve high efficiencies as well. These engines are being looked to by the US Department of Energy and the major OEMs for clean power production, especially considering the use of renewable fuels. As a result, the market will continue to demand gas turbines for the foreseeable future.