To see the other types of publications on this topic, follow the link: Green hydrogen.
Journal articles on the topic 'Green hydrogen'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Green hydrogen.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Majewski, Peter, Fatemeh Salehi, and Ke Xing. "Green hydrogen." AIMS Energy 11, no. 5 (2023): 878–95. http://dx.doi.org/10.3934/energy.2023042.
Full textAbstract:
<abstract> <p>Green hydrogen is produced from water and solar, wind, and/or hydro energy via electrolysis and is considered to be a key component for reaching net zero by 2050. While green hydrogen currently represents only a few percent of all produced hydrogen, mainly from fossil fuels, significant investments into scaling up green hydrogen production, reaching some hundreds of billions of dollars, will drastically change this within the next 10 years with the price of green hydrogen being expected to fall from today's US＄ 5 per kg to US＄ 1–2 per kg. The Australian Government announced a two billion Australian dollar fund for the production of green hydrogen, explicitly excluding projects to produce hydrogen from fossil fuels, like methane. This article reviews current perspectives regarding the production of green hydrogen and its carbon footprint, potential major applications of green hydrogen, and policy considerations in regards to guarantee of origin schemes for green hydrogen and hydrogen safety standards.</p> </abstract>
2
Lott, Melissa C. "Green Hydrogen." Scientific American 316, no. 5 (April 18, 2017): 21. http://dx.doi.org/10.1038/scientificamerican0517-21b.
Full text
3
Modi, Prabha. "A Brief theoretical approach on Green Hydrogen Production." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (April 5, 2024): 1–5. http://dx.doi.org/10.55041/ijsrem30175.
Full textAbstract:
Many different technical techniques can be used to manufacture hydrogen from both renewable and nonrenewable feed supplies while reducing greenhouse gas emissions. Hydrogen is employed in upcoming low-carbon energy systems since it emits relatively little carbon. The bulk of the present green hydrogen activities are geared toward the possibility of a green hydrogen market. Green hydrogen and origin guarantees have been defined using various approaches. These vary according on the following: the carbon financial statements' characteristics; the emission threshold at which hydrogen is classified as green; the plan's feedstock and production techniques; and whether or not sustainable hydrogen must be produced through the use of renewable energy. To overcome obstacles and improve green hydrogen production's viability as a sustainable energy source, research is always moving forward. To hasten green hydrogen's integration into clean energy transitions and slow down global warming, research efforts are concentrated on increasing its efficiency, cutting prices, and broadening its applications. A study that focused on the near-zero carbon production method of green hydrogen by electrolysis using renewable energy sources underscored the advancements and prospects of this field of study. This article describes the current techniques for creating hydrogen from sustainable and renewable energy sources. Keywords: Green Hydrogen, Biomass, Efficiency, Renewable, Hydrogen production.
4
Olabi, Abdul Ghani. "Green hydrogen developments." International Journal of Hydrogen Energy 46, no. 59 (August 2021): 30523. http://dx.doi.org/10.1016/j.ijhydene.2021.07.030.
Full text
5
ARIAS ERGUETA, PEDRO LUIS, Ion Aguirre Arisketa, and VICTORIA LAURA BARRIO CAGIGAL. "GREEN HYDROGEN FUTURE." DYNA 97, no. 6 (November 1, 2022): 567–69. http://dx.doi.org/10.6036/10685.
Full textAbstract:
El hidrógeno es uno de los compuestos más abundantes del universo. Las estrellas lo contienen en proporciones muy elevadas y es el combustible de las reacciones de fusión que generan la enorme cantidad de energía que emiten como radiación.
6
Mohamed Elshafei, Ali, and Rawia Mansour. "Green Hydrogen as a Potential Solution for Reducing Carbon Emissions: A Review." Journal of Energy Research and Reviews 13, no. 2 (February 15, 2023): 1–10. http://dx.doi.org/10.9734/jenrr/2023/v13i2257.
Full textAbstract:
Hydrogen is one of the types of energy discovered in recent decades, which is based on the electrolysis of water in order to separate hydrogen from oxygen. These include grey hydrogen, black hydrogen, blue hydrogen, yellow hydrogen, turquoise hydrogen, and green hydrogen. Generally, hydrogen can be extracted from a variety of sources, including fossil fuels and biomass, water, or a combination of the two. Green hydrogen has the potential to be a critical enabler of the global transition to sustainable energy and zero-emissions economies. Worldwide, there is unprecedented momentum to realize hydrogen's long-standing potential as a clean energy solution. Green hydrogen is a carbon-free fuel and the source of its production is water, and the production processes witness the separation of its molecules from its oxygen counterpart in the water by electricity generated from renewable energy sources such as wind and solar energy. Green hydrogen is one of the most important sources of clean energy, which may be why it is called green hydrogen. It is a clean source of energy, and its generation is based on renewable energy sources, so no carbon gases are released during its production. Green hydrogen produced by water electrolysis becomes a promising and tangible solution for the storage of excess energy for power generation and grid balancing, as well as the production of decarbonized fuel for transportation, heating, and other applications, as we shift away from fossil fuels and toward renewable energies. Green hydrogen is being produced in countries all over the world because it is one of the solutions to reducing carbon emissions, and it is clean, environmentally friendly energy that is derived from clean renewable energy. However, due to the combination of renewable generation and low-carbon fuels, projects for the production of green hydrogen are very expensive. The goal of this review is to highlight the various types of hydrogen, with a focus on the more practical green hydrogen.
7
ISHIMOTO, Yuki. "Green Hydrogen Energy System." Journal of the Atomic Energy Society of Japan 54, no. 2 (2012): 110–14. http://dx.doi.org/10.3327/jaesjb.54.2_110.
Full text
8
Alex Tullo. "Oman explores green hydrogen." C&EN Global Enterprise 100, no. 20 (June 6, 2022): 12. http://dx.doi.org/10.1021/cen-10020-buscon8.
Full text
9
Alex Tullo. "Oman explores green hydrogen." C&EN Global Enterprise 100, no. 20 (June 6, 2022): 12. http://dx.doi.org/10.1021/cen-10020-buscon8.
Full text
10
Clark, Woodrow W., and Jeremy Rifkin. "A green hydrogen economy." Energy Policy 34, no. 17 (November 2006): 2630–39. http://dx.doi.org/10.1016/j.enpol.2005.06.024.
Full text
11
Yang, Lei, Shuning Wang, Zhihu Zhang, Kai Lin, and Minggang Zheng. "Current Development Status, Policy Support and Promotion Path of China’s Green Hydrogen Industries under the Target of Carbon Emission Peaking and Carbon Neutrality." Sustainability 15, no. 13 (June 26, 2023): 10118. http://dx.doi.org/10.3390/su151310118.
Full textAbstract:
The green hydrogen industry, highly efficient and safe, is endowed with flexible production and low carbon emissions. It is conducive to building a low-carbon, efficient and clean energy structure, optimizing the energy industry system and promoting the strategic transformation of energy development and enhancing energy security. In order to achieve carbon emission peaking by 2030 and neutrality by 2060 (dual carbon goals), China is vigorously promoting the green hydrogen industry. Based on an analysis of the green hydrogen industry policies of the U.S., the EU and Japan, this paper explores supporting policies issued by Chinese central and local authorities and examines the inherent advantages of China’s green hydrogen industry. After investigating and analyzing the basis for the development of the green hydrogen industry in China, we conclude that China has enormous potential, including abundant renewable energy resources as well as commercialization experience with renewable energy, robust infrastructure and technological innovation capacity, demand for large-scale applications of green hydrogen in traditional industries, etc. Despite this, China’s green hydrogen industry is still in its early stage and has encountered bottlenecks in its development, including a lack of clarity on the strategic role and position of the green hydrogen industry, low competitiveness of green hydrogen production, heavy reliance on imports of PEMs, perfluorosulfonic acid resins (PFSR) and other core components, the development dilemma of the industry chain, lack of installed capacity for green hydrogen production and complicated administrative permission, etc. This article therefore proposes that an appropriate development road-map and integrated administration supervision systems, including safety supervision, will systematically promote the green hydrogen industry. Enhancing the core technology and equipment of green hydrogen and improving the green hydrogen industry chain will be an adequate way to reduce dependence on foreign technologies, lowering the price of green hydrogen products through the scale effect and, thus, expanding the scope of application of green hydrogen. Financial support mechanisms such as providing tax breaks and project subsidies will encourage enterprises to carry out innovative technological research on and invest in the green hydrogen industry.
12
NICOLIN, Bogdan Adrian, and Ilie NICOLIN. "Green hydrogen as an environmentally-friendly power source." INCAS BULLETIN 15, no. 2 (June 9, 2023): 141–47. http://dx.doi.org/10.13111/2066-8201.2023.15.2.13.
Full textAbstract:
Hydrogen is the most plentiful chemical element in the visible universe. The mass composition of the visible universe is approximately 74% hydrogen, 24% helium, 1% oxygen, and the rest of all other chemical elements is about 1%. Hydrogen has the symbol H and the atomic number 1. It is placed in the first position in Mendeleev's periodic table of elements, in the upper left corner. It is an easily flammable, colorless, tasteless, odorless gas, and in nature, it is found mainly in the form of the diatomic molecule, H 2. With an atomic mass unit of 1.00794, hydrogen is the lightest chemical element. Etymologically, the word hydrogen is a combination of two Greek words hydor and gennan meaning: water producer. Hydrogen (H 2) has a very good calorific value per mass unit 143 MJ/kg which is 3.33 times more than the calorific value of kerosene or diesel fuel. Green hydrogen (clean hydrogen or renewable hydrogen) is produced by electrolysis of water (splitting of water into hydrogen and oxygen) using electricity from renewable sources such as solar energy, wind energy, seawater waves energy, or tidal power. Green hydrogen is an environmentally-friendly power source (no harmful gases). This paper presents recent documentary research by the authors on green hydrogen as an environmentally-friendly power source: for space rocket launches and for hydrogen fuel cells used in the space shuttle as electrical power generators and drinking water generators from launch to return from the space mission; as fuel for a modified turboprop engine (Rolls-Royce and easyJet); as fuel for the European Destinus aircraft using the Jungfrau technology system for a planned hypersonic aircraft using a modified commercial afterburning engine; as fuel for modified gas turbine engines and hydrogen fuel cells to supply electrical power to supplement the gas turbine for the Airbus ZEROe aircraft, etc.
13
Sidorenko, Alexander, Nina Kutkina, Nadezhda Nazarova, and Veniamin Brykin. "Hydrogen production and green chemistry." Journal of Physics: Conference Series 2373, no. 4 (December 1, 2022): 042009. http://dx.doi.org/10.1088/1742-6596/2373/4/042009.
Full textAbstract:
Abstract This paper presents a study on the production of hydrogen and “green chemistry”. The introduction introduces the terminology and historical data, followed by the defining principles that describe hydrogen production methods using natural gas, coal, water and biomass as feedstock. Some basics of “green chemistry” are also given. The next section provides an analysis of all hydrogen production methods, the results of the analysis are recorded in a table that allows you to identify the most environmentally friendly solutions. In the conclusion it is stated that the results of the study indicated in the table make it possible to assess the compliance of each of the 13 methods for producing hydrogen with the principles of “green chemistry”, and the assessment and comments do not take into account the economic component of technologies, the main emphasis is on environmental protection.
14
Hamri, Salah, Bouchra Bouzi, Djahida Lerari, Fayçal Dergal, Tewfik Bouchaour, Khaldoun Bachari, Zohra Bouberka, and Ulrich Maschke. "Removal of Malachite Green by Poly(acrylamide-co-acrylic acid) Hydrogels: Analysis of Coulombic and Hydrogen Bond Donor–Acceptor Interactions." Gels 9, no. 12 (December 1, 2023): 946. http://dx.doi.org/10.3390/gels9120946.
Full textAbstract:
Water pollution caused by dyes poses a significant threat to life on earth. Poly(acrylamide-co-acrylic acid) hydrogels are widely used to treat wastewater from various pollutants. This study aims to examine the removal of malachite green (MG), a harmful and persistent dye that could cause extensive environmental damage, from an aqueous solution by adjusting the initial concentration of acrylamide (AM) and the degree of copolymer crosslinking. The copolymer hydrogels efficiently eliminate MG in a brief timeframe. The most successful hydrogel accomplished a removal rate exceeding 96%. The copolymer of 4 wt % 1,6-hexanediol diacrylate and a concentration of 100 mg/mL AM was effective. The degree of swelling was affected by crosslinking density as expected, with low crosslinking ratios resulting in significant swelling and high ratios resulting in less swelling. To evaluate the results, a docking approach was used which presented three crosslinked models: low, medium, and high. The copolymer–dye hydrogel system displayed robust hydrogen bonding interactions, as confirmed by the high quantities of both donors and acceptors. It was determined that MG contains six rotatable bonds, enabling it to adapt and interact with the copolymer chains. The dye and copolymer enhance H-bond formation by providing two hydrogen bond donors and 16 hydrogen bond acceptors, respectively. Through capitalizing on cationic and anionic effects, the ionic MG/copolymer hydrogel system improves retention efficiency by enhancing attraction between opposing charges. It is interesting to note that the synthesized copolymer is able to remove 96.4% of MG from aqueous media within one hour of contact time.
15
Sayath, Birose, Junaid Mouda Mohammed, Thomas Ninzo, Rao Ch. Venkateswara, Sabangan Teofilo, and Hasan Shaikh Nurul. "Green hydrogen feasibility in oman." i-manager’s Journal on Future Engineering and Technology 19, no. 1 (2023): 48. http://dx.doi.org/10.26634/jfet.19.1.20274.
Full textAbstract:
Global warming is one of the most important factors in unpredictable climatic changes and a challenging issue in the world. The MENA region is one of the hottest areas in the world, and most of its revenue is based on oil resources. The sultanate of Oman, as per Vision 2040, aims to increase the number of renewable energy plants to reduce their electrical energy dependence. At present, Oman produces 650 MW of electrical power using renewable energy sources, this may increase in the upcoming years. High energy density and transportability make hydrogen a suitable energy carrier compared to the existing fossil fuels. This paper discusses the various possible techniques to produce green hydrogen and a brief comparative study of these techniques for their feasibility in the regional scenario so that an effective usage of hydrogen sources and better energy management can be achieved in Oman. Hence, making the usage of green hydrogen as a renewable energy source more feasible and conventional in the upcoming years is in line with Vision 2040.
16
TUDORACHE, V., M. MINESCU, N. ILIAS, and I. OFFENBERG. "FROM NATURAL GAS TO GREEN HYDROGEN." Neft i gaz, no. 4 (August 30, 2021): 125. http://dx.doi.org/10.37878/2708-0080/2021-4.09.
Full textAbstract:
Since hydrogen usually exists on Earth as part of a compound, it has to be synthesized in specific processes in order to be used as a product or energy source. This can be achieved by different technical methods, and various primary energy sources, – both fossil and renewable fuels, in solid, liquid or gaseous form, – can be used in these technical production processes. Hydrogen has only a very low volumetric energy density, which means that it has to be compressed for storage and transportation purposes. The most important commercial storage method, – especially for end users, – is the storage of hydrogen as a compressed gas. A higher storage density can be achieved by hydrogen liquefaction. Novel materials-based storage media (metal hydrides, liquids or sorbents) are still at the research and development stage. The storage of hydrogen (for example, to compression or liquefaction) requires energy; work is, in present, on more efficient storage methods. Unlike electricity, hydrogen can be successfully stored in large amounts for extended periods of time. For example, in long-term underground storage facilities hydrogen can play an important role as a buffer store for electricity from surplus provided by renewable energies. At present, pure hydrogen is generally transported by lorry in pressurize gas containers, and in some cases also in cryogenic liquid tanks. Moreover, local/regional hydrogen pipeline networks are available in some locations. Another solution for storage and transportation are Liquid Organic Hydrogen Carriers (LOHC) that can use long pipe networks and ships. In the near future, the natural gas supply infrastructure or oil (transportation pipelines and underground storage facilities) could also be used, in specific conditions, for the storage and transportation of pure or blended hydrogen with methane. This could be essential for transition because most important primary energy source for hydrogen production currently is natural gas, at 71%, followed by oil, coal and electricity (as a secondary energy resource). Steam reforming (from natural gas) is the most commonly used method for hydrogen production. In this new light, the article explores the trend and prospects for hydrogen, presented in the literature, as a source of energy competing with gas and oil resources in the global energy system of the future.
17
Alex Scott. "Europeans plan green hydrogen pipeline." C&EN Global Enterprise 99, no. 9 (March 15, 2021): 12. http://dx.doi.org/10.1021/cen-09909-buscon7.
Full text
18
Alex Tullo. "Green hydrogen planned for Brazil." C&EN Global Enterprise 100, no. 27 (August 8, 2022): 13. http://dx.doi.org/10.1021/cen-10027-buscon10.
Full text
19
Russo, Thomas N. "Reimagining Hydropower and Green Hydrogen." Climate and Energy 37, no. 11 (May 17, 2021): 21–27. http://dx.doi.org/10.1002/gas.22234.
Full text
20
Clark, Woodrow W. "The Green Hydrogen Paradigm Shift." Cogeneration & Distributed Generation Journal 22, no. 2 (April 2007): 6–38. http://dx.doi.org/10.1080/15453660709509111.
Full text
21
Dincer, Ibrahim. "Green methods for hydrogen production." International Journal of Hydrogen Energy 37, no. 2 (January 2012): 1954–71. http://dx.doi.org/10.1016/j.ijhydene.2011.03.173.
Full text
22
Zhang, Liping, and Anastasios Melis. "Probing green algal hydrogen production." Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 357, no. 1426 (October 29, 2002): 1499–509. http://dx.doi.org/10.1098/rstb.2002.1152.
Full textAbstract:
The recently developed two–stage photosynthesis and H 2 –production protocol with green algae is further investigated in this work. The method employs S deprivation as a tool for the metabolic regulation of photosynthesis. In the presence of S, green algae perform normal photosynthesis, carbohydrate accumulation and oxygen production. In the absence of S, normal photosynthesis stops and the algae slip into the H 2 –production mode. For the first time, to our knowledge, significant amounts of H 2 gas were generated, essentially from sunlight and water. Rates of H 2 production could be sustained continuously for ca . 80 h in the light, but gradually declined thereafter. This work examines biochemical and physiological aspects of this process in the absence or presence of limiting amounts of S nutrients. Moreover, the effects of salinity and of uncouplers of phosphorylation are investigated. It is shown that limiting levels of S can sustain intermediate levels of oxygenic photosynthesis, in essence raising the prospect of a calibration of the rate of photosynthesis by the S content in the growth medium of the algae. It is concluded that careful titration of the supply of S nutrients in the green alga medium might permit the development of a continuous H 2 –production process.
23
Craig Bettenhausen. "Europe proposes green hydrogen definition." C&EN Global Enterprise 101, no. 7 (February 27, 2023): 11. http://dx.doi.org/10.1021/cen-10107-buscon4.
Full text
24
Farrell, Niall. "Policy design for green hydrogen." Renewable and Sustainable Energy Reviews 178 (May 2023): 113216. http://dx.doi.org/10.1016/j.rser.2023.113216.
Full text
25
Hassan, Qusay, Aws Zuhair Sameen, Hayder M. Salman, and Marek Jaszczur. "A Roadmap with Strategic Policy toward Green Hydrogen Production: The Case of Iraq." Sustainability 15, no. 6 (March 16, 2023): 5258. http://dx.doi.org/10.3390/su15065258.
Full textAbstract:
The study proposes a comprehensive framework to support the development of green hydrogen production, including the establishment of legal and regulatory frameworks, investment incentives, and public-private partnerships. Using official and public data from government agencies, the potential of renewable energy sources is studied, and some reasonable assumptions are made so that a full study and evaluation of hydrogen production in the country can be done. The information here proves beyond a doubt that renewable energy makes a big difference in making green hydrogen. This makes the country a leader in the field of making green hydrogen. Based on what it found, this research suggests a way for the country to have a green hydrogen economy by 2050. It is done in three steps: using green hydrogen as a fuel for industry, using green hydrogen in fuel cells, and selling hydrogen. On the other hand, the research found that making green hydrogen that can be used in Iraq and other developing countries is hard. There are technological, economic, and social problems, as well as policy consequences, that need to be solved.
26
Maka, Ali O. M., and Mubbashar Mehmood. "Green hydrogen energy production: current status and potential." Clean Energy 8, no. 2 (March 1, 2024): 1–7. http://dx.doi.org/10.1093/ce/zkae012.
Full textAbstract:
Abstract The technique of producing hydrogen by utilizing green and renewable energy sources is called green hydrogen production. Therefore, by implementing this technique, hydrogen will become a sustainable and clean energy source by lowering greenhouse gas emissions and reducing our reliance on fossil fuels. The key benefit of producing green hydrogen by utilizing green energy is that no harmful pollutants or greenhouse gases are directly released throughout the process. Hence, to guarantee all of the environmental advantages, it is crucial to consider the entire hydrogen supply chain, involving storage, transportation and end users. Hydrogen is a promising clean energy source and targets plan pathways towards decarbonization and net-zero emissions by 2050. This paper has highlighted the techniques for generating green hydrogen that are needed for a clean environment and sustainable energy solutions. Moreover, it summarizes an overview, outlook and energy transient of green hydrogen production. Consequently, its perspective provides new insights and research directions in order to accelerate the development and identify the potential of green hydrogen production.
27
Kendall, Kevin. "Green Hydrogen in the UK: Progress and Prospects." Clean Technologies 4, no. 2 (April 30, 2022): 345–55. http://dx.doi.org/10.3390/cleantechnol4020020.
Full textAbstract:
Green hydrogen has been known in the UK since Robert Boyle described flammable air in 1671. This paper describes how green hydrogen has become a new priority for the UK in 2021, beginning to replace fossil hydrogen production exceeding 1 Mte in 2021 when the British Government started to inject significant funding into green hydrogen sources, though much less than the USA, Germany, Japan and China. Recent progress in the UK was initiated in 2008 when the first UK green hydrogen station opened in Birmingham University, refuelling 5 hydrogen fuel cell battery electric vehicles (HFCBEVs) for the 50 PhD chemical engineering students that arrived in 2009. Only 10 kg/day were required, in contrast to the first large, green ITM power station delivering almost 600 kg/day of green hydrogen that opened in the UK, in Tyseley, in July 2021. The first question asked in this paper is: ‘What do you mean, Green?’. Then, the Clean Air Zone (CAZ) in Birmingham is described, with the key innovations defined. Progress in UK green hydrogen and fuel cell introduction is then recounted. The remarks of Elon Musk about this ‘Fool Cell; Mind bogglingly stupid’ technology are analysed to show that he is incorrect. The immediate deployment of green hydrogen stations around the UK has been planned. Another century may be needed to make green hydrogen dominant across the country, yet we will be on the correct path, once a profitable supply chain is established in 2022.
28
Hamed, Ali Mahmoud, Tengku Nordayana Akma Tuan Kamaruddin, Nabilah Ramli, and Mohd Firdaus Abdul Wahab. "A review on blue and green hydrogen production process and their life cycle assessments." IOP Conference Series: Earth and Environmental Science 1281, no. 1 (December 1, 2023): 012034. http://dx.doi.org/10.1088/1755-1315/1281/1/012034.
Full textAbstract:
Abstract Green and blue hydrogen are two types of hydrogen generated from renewable energy sources and fossil fuels, respectively. Green hydrogen is created by splitting water molecules into oxygen and hydrogen using renewable energy sources such as wind, solar or nuclear power in a process known as electrolysis. Blue hydrogen, on the other hand, is produced by reforming natural gas and capturing and storing the resulting carbon emissions. The production of both green and blue hydrogen has implications for the environment, and a life cycle assessment (LCA) can be used to evaluate the environmental impacts of hydrogen production and use. An LCA considers the entire life cycle of a product, from raw material extraction to end-of-life disposal and assesses the potential environmental impacts at each stage. The LCA of green hydrogen production generally shows a lower environmental impact compared to blue hydrogen production. This is because green hydrogen production does not emit any carbon emissions during the process, whereas blue hydrogen production still results in the emission of carbon dioxide. However, the environmental impact of green hydrogen production can vary depending on the source of the renewable energy used for electrolysis.
29
Weiler, Sibylle, and Luiza Jeske. "The Green Hydrogen Standard and the Green Hydrogen Contracting Project for People and Planet: a short overview of the current standardization process." European Energy and Climate Journal 11, no. 2 (September 30, 2022): 55–59. http://dx.doi.org/10.4337/eecj.2022.02.04.
Full textAbstract:
Abstract The current energy crisis as well as the urgent need to realize national and international targets to decarbonize our economy has placed green hydrogen at the centre of national strategies, government incentives and industry commitments. The Green Hydrogen Organisation (GH2), a non-profit organization, launched the ‘Green Hydrogen Standard’ and the ‘Green Hydrogen Contracting for People and Planet’. These two projects aim to provide principles and contribute to set up the regulatory framework needed to accelerate the use of green hydrogen worldwide. In addition to the standardization, accreditation and certification project, GH2 is working with the support of governments, law firms, companies and civil society groups to develop a Guide for ‘Good Green Hydrogen Contracting Standards’. This overview is intended to reflect the current standardization process presented in the preliminary Guide. Although the process is still ongoing and it might not answer every question, it is an important step to grant standards and principles needed to enable progress towards a green hydrogen economy.
30
Cheng, Wenting, and Sora Lee. "How Green Are the National Hydrogen Strategies?" Sustainability 14, no. 3 (February 8, 2022): 1930. http://dx.doi.org/10.3390/su14031930.
Full textAbstract:
Since Japan promulgated the world’s first national hydrogen strategy in 2017, 28 national (or regional, in the case of the EU) hydrogen strategies have been issued by major world economies. As carbon emissions vary with different types of hydrogen, and only green hydrogen produced from renewable energy can be zero-emissions fuel, this paper interrogates the commitment of the national hydrogen strategies to achieve decarbonization objectives, focusing on the question “how green are the national hydrogen strategies?” We create a typology of regulatory stringency for green hydrogen in national hydrogen strategies, analyzing the text of these strategies and their supporting policies, and evaluating their regulatory stringency toward decarbonization. Our typology includes four parameters, fossilfuel penalties, hydrogen certifications, innovation enablement, and the temporal dimension of coal phasing out. Following the typology, we categorize the national hydrogen strategies into three groups: zero regulatory stringency, scale first and clean later, and green hydrogen now. We find that most national strategies are of the type “scale first and clean later”, with one or more regulatory measures in place. This article identifies further challenges to enhancing regulatory stringency for green hydrogen at both national and international levels.
31
Wang, Hao-Ran, Tian-Tian Feng, Yan Li, Hui-Min Zhang, and Jia-Jie Kong. "What Is the Policy Effect of Coupling the Green Hydrogen Market, National Carbon Trading Market and Electricity Market?" Sustainability 14, no. 21 (October 27, 2022): 13948. http://dx.doi.org/10.3390/su142113948.
Full textAbstract:
Green hydrogen has become the key to social low-carbon transformation and is fully linked to zero carbon emissions. The carbon emissions trading market is a policy tool used to control carbon emissions using a market-oriented mechanism. Building a modular carbon trading center for the hydrogen energy industry would greatly promote the meeting of climate targets. Based on this, a “green hydrogen market—national carbon trading market–electricity market” coupling mechanism is designed. Then, the “green hydrogen market—national carbon trading market–electricity market” mechanism is modeled and simulated using system dynamics. The results are as follows: First, coupling between the green hydrogen market, carbon trading market and electricity market can be realized through green hydrogen certification and carbon quota trading. It is found that the coupling model is feasible through simulation. Second, simulation of the basic scenario finds that multiple-market coupling can stimulate an increase in carbon price, the control of thermal power generation and an increase in green hydrogen production. Finally, the proportion of the green hydrogen certification, the elimination mechanism of outdated units and the quota auction mechanism will help to form a carbon pricing mechanism. This study enriches the green hydrogen trading model and establishes a multiple-market linkage mechanism.
32
Wordsworth, Saul. "Green Machines." Electric and Hybrid Vehicle Technology International 2020, no. 2 (November 2020): 68–74. http://dx.doi.org/10.12968/s1467-5560(23)60100-9.
Full text
33
Jiang, Weihui, Peiyao Shen, and Ju Gu. "Nanocrystalline cellulose prepared by double oxidation as reinforcement in polyvinyl alcohol hydrogels." Journal of Polymer Engineering 40, no. 1 (December 18, 2019): 67–74. http://dx.doi.org/10.1515/polyeng-2019-0258.
Full textAbstract:
Abstract As a biopolymer with high mechanical strength, nanocellulose was increasingly studied to improve polymer properties. In this study, nanocrystalline cellulose (NCC) was efficiently isolated from eucalyptus pulp by double oxidation (ammonium persulfate oxidation and ultrasonic oxidation). The total yield of NCC (405.1 ± 180.5 nm long and 31.7 ± 9.5 nm wide) was 38.3%. A novel hybrid hydrogel was produced from polyvinyl alcohol (PVA) and NCC using the freeze-thaw technique. In this hybrid architecture, hydrogen bonds were formed between PVA and NCC. With the increasing proportion of NCC, the pore size of hydrogels shank gradually and the structure of the hybrid hydrogels became denser. The tensile strength of PVA/NCC hybrid hydrogels increased by 42.4% compared to the neat PVA hydrogel. The results showed that NCC can improve the swelling, thermal properties, and water evaporation rate of PVA hydrogels due to the hydrophilic hydroxyl groups of NCC and hydrogen bonds between PVA and NCC, indicating that PVA hydrogels would have a wider range of application due to the existence of NCC, a green hybrid filler. Most importantly, this novel double oxidation method for preparing nanocellulose will promote an efficient production of nanocellulose.
34
Hamukoshi, Simeon Shiweda, Neliswa Mama, Panduleni Penipawa Shimanda, and Natangue Heita Shafudah. "An overview of the socio-economic impacts of the green hydrogen value chain in Southern Africa." Journal of Energy in Southern Africa 33, no. 3 (September 26, 2022): 12–21. http://dx.doi.org/10.17159/2413-3051/2022/v33i3a12543.
Full textAbstract:
The green hydrogen economy offers synthetic green energy with significant impacts and is environmentally friendly compared to current fossil-based fuels. Exploration of green hydrogen energy in Southern Africa is still in the initial stages in many low-resourced settings aiming to benefit from sustainable green energy. At this early stage, potential benefits to society are yet to be understood. That is why the socio-economic impact of green hydrogen energy must be explored. This paper reviews the current literatures to describe the potential socio-economic effects in the Southern African Development Community (SADC). The review supports the view that green hydrogen will be beneficial and have great potential to revolutionise agricultural and industrial sectors, with advanced sustainable changes for both production and processing. This paper also examines how sustainable green hydrogen energy production in Southern Africa will provide economic value in the energy export sector around the world and support climate change initiatives. Further, it discusses the impacts of the green hydrogen value addition chain and the creation of green jobs, as well as the need for corresponding investments and policy reforms. It is also noted that the green hydrogen economy can contribute to job losses in fossil fuel-based industries, so that the workforce there may need re-skilling to take up green jobs. Such exchanges may deter efforts towards poverty alleviation and economic growth in SADC.
35
Shi, Jie, Yuanqing Zhu, Yongming Feng, Jun Yang, and Chong Xia. "A Prompt Decarbonization Pathway for Shipping: Green Hydrogen, Ammonia, and Methanol Production and Utilization in Marine Engines." Atmosphere 14, no. 3 (March 17, 2023): 584. http://dx.doi.org/10.3390/atmos14030584.
Full textAbstract:
The shipping industry has reached a higher level of maturity in terms of its knowledge and awareness of decarbonization challenges. Carbon-free or carbon-neutralized green fuel, such as green hydrogen, green ammonia, and green methanol, are being widely discussed. However, little attention has paid to the green fuel pathway from renewable energy to shipping. This paper, therefore, provides a review of the production methods for green power (green hydrogen, green ammonia, and green methanol) and analyzes the potential of green fuel for application to shipping. The review shows that the potential production methods for green hydrogen, green ammonia, and green methanol for the shipping industry are (1) hydrogen production from seawater electrolysis using green power; (2) ammonia production from green hydrogen + Haber–Bosch process; and (3) methanol production from CO2 using green power. While the future of green fuel is bright, in the short term, the costs are expected to be higher than conventional fuel. Our recommendations are therefore as follows: improve green power production technology to reduce the production cost; develop electrochemical fuel production technology to increase the efficiency of green fuel production; and explore new technology. Strengthening the research and development of renewable energy and green fuel production technology and expanding fuel production capacity to ensure an adequate supply of low- and zero-emission marine fuel are important factors to achieve carbon reduction in shipping.
36
Soloveichik, Grigorii L. "(Invited) Green Hydrogen Technologies: Status and Trends." ECS Meeting Abstracts MA2022-01, no. 39 (July 7, 2022): 1729. http://dx.doi.org/10.1149/ma2022-01391729mtgabs.
Full textAbstract:
There is growing societal consensus that hydrogen is an absolutely necessary part of energy portfolio to reach the COP26 goal to secure global net-zero by mid-century. Hydrogen will play a major role in hard to decarbonize sectors such as industrial (production of steel, cement, and chemicals including ammonia) and heavy-duty, long-haul transportation. By different estimations, hydrogen production volume will be anywhere from 240 to 800 million metric tons per year (MMTY). More realistic predictions are in the range 500 – 600 MMTY that is 7 – 8.5 times more than current global hydrogen production, which predominantly uses fossil fuels and emits around 830 MMTY of carbon dioxide. It is assumed that hydrogen produced by water splitting became predominant by 2050. With less than 0.1% of current global hydrogen production delivered from water electrolysis, electrolytic hydrogen has tremendous potential for growth. Two commercial (alkaline and PEM) and two emerging (SOEC and AEM) will be compared based on current status and trends of technology (catalysts, membranes, system manufacturability, and capital cost). These technologies could benefit from the integration with energy sources (e.g., nuclear power) or downstream utilization (e.g., ammonia production). Suitability of these technologies for exemplary environments with different energy inputs, electricity prices, and capacity factors will be analyzed. In addition, the effect of different pathways for hydrogen delivery (pure and in the form of a hydrogen carrier) on the levelized cost of hydrogen will be considered. Development of advanced green hydrogen technologies including early stage research will be illustrated with projects funded by DOE Advanced Research Projects Agency (ARPA-E) and Hydrogen and Fuel Cell technologies Office (HFTO), and their role in DOE Hydrogen Program and Hydrogen Earthshot will be discussed.
37
Muñoz Díaz, María Teresa, Héctor Chávez Oróstica, and Javiera Guajardo. "Economic Analysis: Green Hydrogen Production Systems." Processes 11, no. 5 (May 4, 2023): 1390. http://dx.doi.org/10.3390/pr11051390.
Full textAbstract:
The continued use of energy sources based on fossil fuels has various repercussions for the environment. These repercussions are being minimized through the use of renewable energy supplies and new techniques to decarbonize the global energy matrix. For many years, hydrogen has been one of the most used gases in all kinds of industry, and now it is possible to produce it efficiently, on a large scale, and in a non-polluting way. This gas is mainly used in the chemical industry and in the oil refining industry, but the constant growth of its applications has generated the interest of all the countries of the world. Its use in transportation, petrochemical industries, heating equipment, etc., will result in a decrease in the production of greenhouse gases, which are harmful to the environment. This means hydrogen is widely used and needed by countries, creating great opportunities for hydrogen export business. This paper details concepts about the production of green hydrogen, its associated technologies, and demand projections. In addition, the current situation of several countries regarding the use of this new fuel, their national strategy, and advances in research carried out in different parts of the world for various hydrogen generation projects are discussed. Additionally, the great opportunities that Chile has for this new hydrogen export business, thanks to the renewable energy production capacities in the north and south of the country, are discussed. The latter is key for countries that require large amounts of hydrogen to meet the demand from various industrial, energy, and transportation sectors. Therefore, it is of global importance to determine the real capacities that this country has in the face of this new green fuel. For this, modeling was carried out through mathematical representations, showing the behavior of the technologies involved in the production of hydrogen for a system composed of an on-grid photovoltaic plant, an electrolyser, and compressor, together with a storage system. The program optimized the capacities of the equipment in such a way as to reduce the costs of hydrogen production and thereby demonstrate Chile’s capacity for the production of this fuel. From this, it was found that the LCOH for the case study was equivalent to 3.5 USD/kg, which is not yet considered a profitable value for the long term. Due to this, five case studies were analyzed, to see what factors influence the LCOH, and thereby reduce it as much as possible.
38
Ourya, I., and S. Abderafi. "Technology comparison for green hydrogen production." IOP Conference Series: Earth and Environmental Science 1008, no. 1 (April 1, 2022): 012007. http://dx.doi.org/10.1088/1755-1315/1008/1/012007.
Full textAbstract:
Abstract Because of greenhouse gas emissions generated by fossil fuels, it has become essential to find non-polluting alternatives. Hydrogen is generally produced from the steam methane reforming (SMR) process which generates a lot of greenhouse gases. However, there are many other processes to produce hydrogen that are cleaner and should be of interest. This study aims at comparing different existing technologies to produce hydrogen in a clean and non-polluting way, in particular biological and thermochemical processes from biomass and water splitting processes. Their comparison is made by analyzing several parameters such as the type of raw materials, energy sources, efficiency, waste generation, CO2 emissions and, hydrogen production rate. Among the biological processes to produce hydrogen from biomass, dark fermentation seems to be the best due to its high production efficiency. Thermochemical processes are also interesting because of their maturity, but they generate a lot of waste such as tar and ashes. Water splitting processes coupled with renewable energy have the advantage of being zero greenhouse gas generating. The electrolysis is the best from the point of view of production efficiency which reaches 80%.
39
Sedai, Ashish, Rabin Dhakal, Shishir Gautam, Bijaya Kumar Sedhain, Biraj Singh Thapa, Hanna Moussa, and Suhas Pol. "Wind energy as a source of green hydrogen production in the USA." Clean Energy 7, no. 1 (February 1, 2023): 8–22. http://dx.doi.org/10.1093/ce/zkac075.
Full textAbstract:
Abstract The study incorporates an overview of the green hydrogen-production potential from wind energy in the USA, its application in power generation and the scope of substituting grey and blue hydrogen for industrial usage. Over 10 million metric tons of grey and blue hydrogen is produced in the USA annually to fulfil the industrial demand, whereas, for 1 million metric tons of hydrogen generated, 13 million metric tons of CO2 are released into the atmosphere. The research aims to provide a state-of-the-art review of the green hydrogen technology value chain and a case study on the production of green hydrogen from an 8-MW wind turbine installed in the southern plain region of Texas. This research estimates that the wind-farm capacity of 130 gigawatt-hours is required to substitute grey and blue hydrogen for fulfilling the current US annual industrial hydrogen demand of 10 million metric tons. The study investigates hydrogen-storage methods and the scope of green hydrogen-based storage facilities for energy produced from a wind turbine. This research focuses on the USA’s potential to meet all its industrial and other hydrogen application requirements through green hydrogen.
40
Zvereva, E. R., I. G. Akhmetova, A. I. Nazarov, and A. R. Nurislamova. "Development of “green” hydrogen energy in the European part of the Russian Federation." Russian Journal of Industrial Economics 15, no. 2 (June 8, 2022): 167–76. http://dx.doi.org/10.17073/2072-1633-2022-2-167-176.
Full textAbstract:
The development of hydrogen energy in the Russian Federation has been interfered by a number of serious problems and issues connected with the innovative nature of this sector of economics. The problems include lack of experience in production, storage and transportation of “green” hydrogen. The development results within the Concept for the development of hydrogen energy present the Russian Federation as the largest exporter of hydrogen by 2050. The Concept estimates the future hydrogen production volumes to be as high as 200,000 tons by 2024, from 2 to 12 million ton by 2035 and from 15 to 50 million ton by 2050. Currently, there are projects on producing “green” hydrogen through electrolysis of water at hydroelectric stations. Moreover, there are different methods of hydrogen storage used in the Russian Federation. However, there is no transportation infrastructure for “green” hydrogen. Therefore, in order to build up transportation infrastructure the authors use economic calculations to consider and actualize the routes for transportation of the “green” hydrogen. To evaluate the profitability the infrastructure and the routes were created for transporting the “green” hydrogen as the export raw material produced in the Niznekamskya HES (Naberezhnye Chelny, Republic of Tatarstan, Russia) to the EU countries. The authors consider waterways, land routes and pipelines for delivering the “green hydrogen” as the transportation facilities and the cargo routes. They evaluate the indicators which characterize the “green” hydrogen transportation by means of waterway, railway and automobile transport and pipelines. The authors estimate the comparative payback periods for the hydrogen transportation by means of waterway, railway and automobile transport and pipelines along their main routes according to the hydrogen market price.
41
Dong, Zhao Yang, Jiajia Yang, Li Yu, Rahman Daiyan, and Rose Amal. "A green hydrogen credit framework for international green hydrogen trading towards a carbon neutral future." International Journal of Hydrogen Energy 47, no. 2 (January 2022): 728–34. http://dx.doi.org/10.1016/j.ijhydene.2021.10.084.
Full text
42
Chavez-Angel, Emigdio, Alejandro Castro-Alvarez, Nicolas Sapunar, Francisco Henríquez, Javier Saavedra, Sebastián Rodríguez, Iván Cornejo, and Lindley Maxwell. "Exploring the Potential of Green Hydrogen Production and Application in the Antofagasta Region of Chile." Energies 16, no. 11 (June 3, 2023): 4509. http://dx.doi.org/10.3390/en16114509.
Full textAbstract:
Green hydrogen is gaining increasing attention as a key component of the global energy transition towards a more sustainable industry. Chile, with its vast renewable energy potential, is well positioned to become a major producer and exporter of green hydrogen. In this context, this paper explores the prospects for green hydrogen production and use in Chile. The perspectives presented in this study are primarily based on a compilation of government reports and data from the scientific literature, which primarily offer a theoretical perspective on the efficiency and cost of hydrogen production. To address the need for experimental data, an ongoing experimental project was initiated in March 2023. This project aims to assess the efficiency of hydrogen production and consumption in the Atacama Desert through the deployment of a mobile on-site laboratory for hydrogen generation. The facility is mainly composed by solar panels, electrolyzers, fuel cells, and a battery bank, and it moves through the Atacama Desert in Chile at different altitudes, from the sea level, to measure the efficiency of hydrogen generation through the energy approach. The challenges and opportunities in Chile for developing a robust green hydrogen economy are also analyzed. According to the results, Chile has remarkable renewable energy resources, particularly in solar and wind power, that could be harnessed to produce green hydrogen. Chile has also established a supportive policy framework that promotes the development of renewable energy and the adoption of green hydrogen technologies. However, there are challenges that need to be addressed, such as the high capital costs of green hydrogen production and the need for supportive infrastructure. Despite these challenges, we argue that Chile has the potential to become a leading producer and exporter of green hydrogen or derivatives such as ammonia or methanol. The country’s strategic location, political stability, and strong commitment to renewable energy provide a favorable environment for the development of a green hydrogen industry. The growing demand for clean energy and the increasing interest in decarbonization present significant opportunities for Chile to capitalize on its renewable energy resources and become a major player in the global green hydrogen market.
43
Ali, Fida, Adul Bennui, Shahariar Chowdhury, and Kuaanan Techato. "Suitable Site Selection for Solar-Based Green Hydrogen in Southern Thailand Using GIS-MCDM Approach." Sustainability 14, no. 11 (May 27, 2022): 6597. http://dx.doi.org/10.3390/su14116597.
Full textAbstract:
Climate change mitigation efforts are in dire need of greener and more versatile fuel alternatives to fossil fuels. Green hydrogen being both renewable and flexible has the potential to offset fossil fuels as the primary fuel source. Countries around the world are planning to develop their green hydrogen industries and accurate potential assessment is vital. This study employed the consolidation of a geographic information system (GIS) and the analytical hierarchy process (AHP) technique of multicriteria decision making (MCDM) for the potential assessment of green hydrogen in southern Thailand, through the selection of suitable sites for solar-based green hydrogen production. Technical, economic, and environmental criteria with 10 sub-criteria were considered for the selection of suitable sites. With 0.243 (24.3%) weight, the distance from protected areas turned out to be the most important sub-criterion, whereas the criterion of elevation, with a 0.017 (1.7%) score, was considered the least important. Southern Thailand is a well-suited area for solar-based green hydrogen production, with a 4302 km2 area of high suitability and a 3350 km2 area of moderate suitability. These suitable areas can be utilized to develop the green hydrogen industry of Thailand, and the method developed can be employed for the assessment of green hydrogen potential in other parts of the country. Studies like these are vital for the development of green hydrogen road maps for Thailand to develop its hydrogen policy and promote investments in the sector.
44
Martínez-Téllez, M. A., F. J. Rodríguez-Leyva, I. E. Espinoza-Medina, I. Vargas-Arispuro, A. A. Gardea, G. A. González-Aguilar, and J. F. Ayala-Zavala. "Sanitation of fresh green asparagus and green onions inoculated with Salmonella." Czech Journal of Food Sciences 27, No. 6 (December 23, 2009): 454–62. http://dx.doi.org/10.17221/138/2008-cjfs.
Full textAbstract:
The absence of good agricultural and manufacturing practices in the production and postharvest handling of fresh produce, such as green asparagus or green onions increase the contamination risk by biological hazards like Salmonella. The objective of this work was to investigate the efficacy of chlorine (200 and 250 ppm), hydrogen peroxide (1.5% and 2%), and lactic acid (1.5% and 2%) sanitisers during different exposure times (40, 60, and 90 s) on the reduction of <i>Salmonella enterica</i> subspecie <i>enterica</i> serovar Typhimurium in inoculated fresh green asparagus and green onions. Washing with clean water only reduced < 1 log10 CFU/g in both vegetables. The most effective sanitiser evaluated for fresh green asparagus and green onions disinfection appeared to be 2% lactic acid reducing <i>Salmonella</i> growth close to 3 log<sub>10</sub> CFU/g. Hydrogen peroxide was the least effective agent for <i>Salmonella</i> Typhimurium reduction. No effect was observed of the exposure time of inoculated product to sanitiser up to 90 seconds. These results confirm that lactic acid could be used as an alternative for fresh green asparagus and green onions sanitation.
45
Hossein Ali, Yousefi Rizi, and Donghoon Shin. "Green Hydrogen Production Technologies from Ammonia Cracking." Energies 15, no. 21 (November 4, 2022): 8246. http://dx.doi.org/10.3390/en15218246.
Full textAbstract:
The rising technology of green hydrogen supply systems is expected to be on the horizon. Hydrogen is a clean and renewable energy source with the highest energy content by weight among the fuels and contains about six times more energy than ammonia. Meanwhile, ammonia is the most popular substance as a green hydrogen carrier because it does not carry carbon, and the total hydrogen content of ammonia is higher than other fuels and is thus suitable to convert to hydrogen. There are several pathways for hydrogen production. The considered aspects herein include hydrogen production technologies, pathways based on the raw material and energy sources, and different scales. Hydrogen can be produced from ammonia through several technologies, such as electrochemical, photocatalytic and thermochemical processes, that can be used at production plants and fueling stations, taking into consideration the conversion efficiency, reactors, catalysts and their related economics. The commercial process is conducted by using expensive Ru catalysts in the ammonia converting process but is considered to be replaced by other materials such as Ni, Co, La, and other perovskite catalysts, which have high commercial potential with equivalent activity for extracting hydrogen from ammonia. For successful engraftment of ammonia to hydrogen technology into industry, integration with green technologies and economic methods, as well as safety aspects, should be carried out.
46
Aqeel Ashraf, Syed, Ch Venkateswara Rao, Khaliquzzaman Khan, Mohammad Mohatram, Afaq Ahmad, Shah Jahan, and Ch Ramya. "Strategic route for impending green hydrogen energy in Oman." E3S Web of Conferences 472 (2024): 01011. http://dx.doi.org/10.1051/e3sconf/202447201011.
Full textAbstract:
Since energy and its sustainability are key global issues, extensive research is currently underway to advance the emerging energy sector. Hydrogen is anticipated to assume a substantial role as a worldwide energy carrier in forthcoming energy frameworks. Oman has set an ambitious target to annually produce one million tons of green hydrogen by 2040, aspiring to become one of the leading global producers and exporters of green hydrogen. These hydrogen scenarios are integral components of the broader global energy scenarios, primarily focused on achieving decarbonization. Green hydrogen serves as a pivotal element in Oman’s pursuit of de-carbonization, as well as its economic and energy security objectives. This paper aims to accentuate the challenges associated with hydrogen development, particularly in the context of green hydrogen production, by examining both present and future advancements. It provides a comprehensive overview of the consumption, applications, and economic considerations of green hydrogen based on expert organizations’ projections. Additionally, the paper addresses key considerations pertaining to the utilization and transportation of hydrogen as compared to electricity.
47
Seshavatharam, U. V. S. "Manual Production of Green Current, Green Hydrogen and Green Oxygen for the Benefit of Daily Income of Poor People of Any Country." Innovation in Science and Technology 1, no. 5 (December 2022): 7–16. http://dx.doi.org/10.56397/ist.2022.12.02.
Full textAbstract:
From Kasmir to Kanyakumari, as India is having many poor people with no daily income, based on humanity, we are making an advanced technical attempt to help them with a possible daily income by manual production of green current, green hydrogen and green oxygen. To have sufficient fuel, to have an efficient fuel and to reduce pollution levels, world transportation system badly needs eco-friendly hydrogen and the whole earthy environment is in a serious quest for oxygen. To resolve the above basic issues, it is planned to produce hydrogen and oxygen by means of alkaline electrolysis with external magnetic field (IIT, Mumbai, India) for a better productivity, accomplished by electricity produced from medium capacity alternators operated by human physical energy. To fulfill this requirement, it is planned to take the help of illiterates, healthy beggars, Rikshawala like poor people and farmers having no crop field or no crop yield. With efficient pedaling and gearing mechanisms associated with heavy fly wheels, 10 of 20 persons forming as a group can be allowed to run any alternator round the clock in 8-hour shift system for 4 alternative hours without any physical strain. By considering our proposal, 1) Hydrogen fuel required for running Fuel cells and Internal combustion engines can be generated in large quantity with a de-central system having unlimited number of medium capacity alternators spread across entire India. 2) Generated oxygen can be released to atmosphere and air pollution levels can be diluted to a greater extent across India. 3) Recycled waste water or sewage water can also be used. 4) Multiple number of small scale units can be set up with 5 to 10 alternators and production of hydrogen by electrolysis can be increased from 5% to (30 to 40) % of total production of hydrogen. 5) To some extent, as long as Hydrogen is considered as a fuel, employment problem, hydrogen scarcity and air pollution issues can be resolved. With further study, research and direct involvement of state and central governments, industrialists, scientists and engineers, this proposal can be implemented a full-fledged manner from Kashmir to Kanykumari. Our proposal can be considered as one of the best coordinating schemes for-fulfilling Indian transportation fuel needs, Indian poor people struggling for getting daily wages and saving mother earth from CO2, SO2 and NOx like harmful gases. This project can be implemented in any country having poor people.
48
Grecea, Danut, Tiberiu Csaszar, Gabriela Pupazan, and Aurelian Nicola. "Hydrogen, the new green energy resource." MATEC Web of Conferences 389 (2024): 00027. http://dx.doi.org/10.1051/matecconf/202438900027.
Full textAbstract:
The desire to reduce pollution and price instability generated by the major share of fossil fuel use requires firm solutions for green transition of economy, that must provide access to clean, safe and affordable energy. An important sector, seriously affected, being a competitive field with consistent limitations, is the transport system, where use of alternative fuels, the hydrogen, is perhaps a solution. Hydrogen can be used as a raw material, fuel, and can be stored with many other possible uses in industry sectors, not only transportation. Most importantly, it does not emit CO2 and almost does not pollute the air when in use. It therefore provides a solution for decarbonising industrial processes and economic sectors where carbon reduction is both urgent and difficult to achieve. All this makes hydrogen essential to support the EU's commitment to climate neutrality, on the one hand, and to global effort to implement the Paris Agreement, on the other. The present paper presents all aspects, through simulation in MATLAB-Simulink, of the production, storage and use of hydrogen as an alternative fuel source.
49
Dinh, Van Thinh. "Experiences in long-term operation of a green hydrogen production plant using wind power in Germany - a possible model for Vietnam." Petrovietnam Journal 12 (December 28, 2021): 65–69. http://dx.doi.org/10.47800/pvj.2021.12-06.
Full textAbstract:
Hydrogen is considered as "the green fuel of the 21st century" and forecasted to play a leading role in the energy transition. The article introduces the processes of green hydrogen production in Energiepark Mainz, the first wind power hydrogen production plant with a capacity of 6 MW in Germany. The article describes the production, storage, transportation, and consumption (gas, fuel for bus and industries) of green hydrogen through the continuous operation of the plant. Based on that, the author analyses opportunities and challenges when applying Energiepark Mainz's model to the green hydrogen production strategy in Vietnam.
50
Bairrão, Diego, João Soares, José Almeida, John F. Franco, and Zita Vale. "Green Hydrogen and Energy Transition: Current State and Prospects in Portugal." Energies 16, no. 1 (January 3, 2023): 551. http://dx.doi.org/10.3390/en16010551.
Full textAbstract:
Hydrogen is a promising commodity, a renewable secondary energy source, and feedstock alike, to meet greenhouse gas emissions targets and promote economic decarbonization. A common goal pursued by many countries, the hydrogen economy receives a blending of public and private capital. After European Green Deal, state members created national policies focused on green hydrogen. This paper presents a study of energy transition considering green hydrogen production to identify Portugal’s current state and prospects. The analysis uses energy generation data, hydrogen production aspects, CO2 emissions indicators and based costs. A comprehensive simulation estimates the total production of green hydrogen related to the ratio of renewable generation in two different scenarios. Then a comparison between EGP goals and Portugal’s transport and energy generation prospects is made. Portugal has an essential renewable energy matrix that supports green hydrogen production and allows for meeting European green hydrogen 2030–2050 goals. Results suggest that promoting the conversion of buses and trucks into H2-based fuel is better for CO2 reduction. On the other hand, given energy security, thermoelectric plants fueled by H2 are the best option. The aggressive scenario implies at least 5% more costs than the moderate scenario, considering economic aspects.