Thematische Bibliographien / Green hydrogen energy systems

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Auswahl der wissenschaftlichen Literatur zum Thema „Green hydrogen energy systems“

Autor: Grafiati

Veröffentlicht am 29. Juni 2021

Zuletzt aktualisiert am 1. Februar 2022

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Zeitschriftenartikel zum Thema "Green hydrogen energy systems"

Karakoc, Hikmet, Adnan Midilli und Onder Turan. „Green hydrogen and fuel cell systems“. International Journal of Energy Research 37, Nr. 10 (10.07.2013): 1141. http://dx.doi.org/10.1002/er.3037.

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Aziz, Muhammad. „Advanced Green Technologies Toward Future Sustainable Energy Systems“. Indonesian Journal of Science and Technology 4, Nr. 1 (07.03.2019): 89. http://dx.doi.org/10.17509/ijost.v4i1.15805.

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Currently, the usable energy is basically harvested from the fossil energy sources, including coal, oil, and gas, which are believed to harm the environment due to the emitted GHGs. The awareness to the climate change and limited reserve of fossil energy sources has led to a strong motivation to develop a new energy system which can facilitate three important pillars: security, clean environment, and economic opportunity. This future energy system is strongly expected to be able to blend both fossil and renewable energy sources, while minimize its environmental impacts. To realize it, the primary energy sources are converted to the efficient secondary energy sources, including electricity and hydrogen. These two kinds of secondary energy source are considered very promising in the future, following a high demand in many sectors. In transportation sector, both electricity and hydrogen are believed to become the future fuels as the deployment of electric and fuel cell vehicles is increasing rapidly. In this paper, several potential technologies to produce the energy cleanly from primary energy sources are introduced and evaluated. In addition, clean and efficient technologies in storage and utilization are also described.

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Jorschick, H., P. Preuster, A. Bösmann und P. Wasserscheid. „Hydrogenation of aromatic and heteroaromatic compounds – a key process for future logistics of green hydrogen using liquid organic hydrogen carrier systems“. Sustainable Energy & Fuels 5, Nr. 5 (2021): 1311–46. http://dx.doi.org/10.1039/d0se01369b.

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Dagdougui, Hanane, Ahmed Ouammi und Roberto Sacile. „Modelling and control of hydrogen and energy flows in a network of green hydrogen refuelling stations powered by mixed renewable energy systems“. International Journal of Hydrogen Energy 37, Nr. 6 (März 2012): 5360–71. http://dx.doi.org/10.1016/j.ijhydene.2011.07.096.

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Peksen, Murat. „Hydrogen Technology towards the Solution of Environment-Friendly New Energy Vehicles“. Energies 14, Nr. 16 (10.08.2021): 4892. http://dx.doi.org/10.3390/en14164892.

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The popularity of climate neutral new energy vehicles for reduced emissions and improved air quality has been raising great attention for many years. World-wide, a strong commitment continues to drive the demand for zero-emission through alternative energy sources and propulsion systems. Despite the fact that 71.27% of hydrogen is produced from natural gas, green hydrogen is a promising clean way to contribute to and maintain a climate neutral ecosystem. Thereby, reaching CO2 targets for 2030 and beyond requires cross-sectoral changes. However, the strong motivation of governments for climate neutrality is challenging many sectors. One of them is the transport sector, as it is challenged to find viable all-in solutions that satisfy social, economic, and sustainable requirements. Currently, the use of new energy vehicles operating on green sustainable hydrogen technologies, such as batteries or fuel cells, has been the focus for reducing the mobility induced emissions. In Europe, 50% of the total emissions result from mobility. The following article reviews the background, ongoing challenges and potentials of new energy vehicles towards the development of an environmentally friendly hydrogen economy. A change management process mindset has been adapted to discuss the key scientific and commercial challenges for a successful transition.

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Matani, Behnoosh, Babak Shirazi und Javad Soltanzadeh. „F-MaMcDm: Sustainable Green-Based Hydrogen Production Technology Roadmap Using Fuzzy Multi-Aspect Multi-Criteria Decision-Making“. International Journal of Innovation and Technology Management 16, Nr. 08 (Dezember 2019): 1950057. http://dx.doi.org/10.1142/s0219877019500573.

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In recent years, with increasing demand for fossil fuels, greenhouse gas emissions, acid rains, and air pollution have increased. These issues have encouraged industries to replace the existing fossil fuel system by the hydrogen energy system which is a clean energy carrier. Replacing hydrogen in the future energy systems needs a dynamic and flexible strategic tool for planning and management. Roadmapping tool is a strategic choice for supporting technology management in long-term planning and under the fast-changing environment in manufacturing technologies. This study tackles a novel methodology that considers the uncertainties and linguistic assessments for developing a green-based hydrogen production technology roadmap considering concurrent multi-layered aspects. The aim of this paper is to develop a dynamic and flexible technology roadmap using a combination of the classical roadmapping method with a novel fuzzy multi-aspect multi-criteria decision-making approach (F-MaMcDm). This study represents a quantitative paradigm to roadmapping instead of conventional descriptive “when and how” paradigm. The F-MaMcDm classifies sustainable green-based hydrogen production technologies considering four comprehensive aspects (technical, socio-political, environmental and economic) and criteria relevant to the aspects. The results show that biomass gasification is the first technology to be prioritized followed by other green-based hydrogen production technologies in a long time.

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Filimonov, A. G., A. A. Filimonova, N. D. Chichirova und A. A. Chichirov. „Global energy association: new opportunities of hydrogen technologies“. Power engineering: research, equipment, technology 23, Nr. 2 (21.05.2021): 3–13. http://dx.doi.org/10.30724/1998-9903-2021-23-2-3-13.

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PURPOSE. To analyze the prospects of integrating hydrogen technologies into the traditional directions of development of the electric power industry in the world and Russia. To highlight the competitive advantages of Russia in the changing structure of the industry with the transition to" green " hydrogen. METHODS. The analysis of the literature data and the data of the international information exchange is carried out. RESULTS. The most urgent scientific and technical problem of the economy, affecting any practical aspect of human economic activity, is the issue of the availability of energy resources and the impact on the environment. It is now, in the context of the restrictions caused by the COVID-19 pandemic, that the trends of globalization are particularly acute, and the degree of cross-border information communication using digital capabilities has increased many times. CONCLUSION. The transition to a new technological stage of energy supply for our society is more urgent than ever, based on innovative approaches to the creation of intelligently managed global energy systems with their consolidation and, at the same time, decentralization and distribution to local levels of centers, production, consumption and management, increasing the share of small RES, the introduction of new digital solutions, the use of hydrogen technology chains and hybrid systems based on them and other promising energy technologies on an industrial scale.

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Spadaro, Lorenzo, Alessandra Palella und Francesco Arena. „Totally-green Fuels via CO2 Hydrogenation“. Bulletin of Chemical Reaction Engineering & Catalysis 15, Nr. 2 (23.04.2020): 390–404. http://dx.doi.org/10.9767/bcrec.15.2.7168.390-404.

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Hydrogen is the cleanest energy vector among any fuels, nevertheless, many aspects related to its distribution and storage still raise serious questions concerning costs, infrastructure and safety. On this account, the chemical storage of renewable-hydrogen by conversion into green-fuels, such as: methanol, via CO2 hydrogenation assumes a role of primary importance, also in the light of a cost-to-benefit analysis. Therefore, this paper investigates the effects of chemical composition on the structural properties, surface reactivity and catalytic pathway of ternary CuO-ZnO-CeO2 systems, shedding light on the structure-activity relationships. Thus, a series of CuZnCeO2 catalysts, at different CuO/CeO2 ratio (i.e. 0.2-1.2) were performed in the CO2 hydrogenation reactions at 20 bar and 200-300 °C, (GHSV of 4800 STP L∙kg∙cat-1∙h-1). Catalysts were characterized by several techniques including X-ray Diffraction (XRD), N2-physisorption, single-pulse N2O titrations, X-ray Photoelectron Spectroscopy (XPS), and Temperature-programmed Reduction with H2 (H2-TPR). Depending on preparation method, the results clearly diagnostics the occurrence of synergistic structural-electronic effects of cerium oxide on copper activity, with an optimal 0.5 copper-to-cerium content. The rise of CuO loading up to 30% drives to a considerable increase of hydrogenation activity: C2Z1-C catalyst obtains the best catalytic performance, reaching methanol yield value of 12% at 300 °C. Catalyst activity proceeds according to volcano-shaped relationships, in agreement with a dual sites mechanism. Copyright © 2020 BCREC Group. All rights reserved

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Li, Zheng, Yan Qin, Xin Cao, Shaodong Hou und Hexu Sun. „Wind-Solar-Hydrogen Hybrid Energy Control Strategy Considering Delayed Power of Hydrogen Production“. Electrotehnica, Electronica, Automatica 69, Nr. 2 (15.05.2021): 5–12. http://dx.doi.org/10.46904/eea.21.69.2.1108001.

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In order to meet the load demand of power system, BP based on genetic algorithm is applied to the typical daily load forecasting in summer. The demand change of summer load is analysed. Simulation results show the accuracy of the algorithm. In terms of power supply, the reserves of fossil energy are drying up. According to the prediction of authoritative organizations, the world's coal can be mined for 216 years. As a renewable energy, wind power has no carbon emissions compared with traditional fossil energy. At present, it is generally believed that wind energy and solar energy are green power in the full sense, and they are inexhaustible clean power. The model of wind power solar hydrogen hybrid energy system is established. The control strategy of battery power compensation for delayed power of hydrogen production is adopted, and different operation modes are divided. The simulation results show that the system considering the control strategy can well meet the load demand. Battery energy storage system is difficult to respond to short-term peak power fluctuations. Super capacitor is used to suppress it. This paper studies the battery supercapacitor complementary energy storage system and its control strategy. When the line impedance of each generation unit in power grid is not equal, its output reactive power will be affected by the line impedance and distributed unevenly. A droop coefficient selection method of reactive power sharing is proposed. Energy storage device is needed to balance power and maintain DC voltage stability in the DC side of microgrid. Therefore, a new droop control strategy is proposed. By detecting the DC voltage, dynamically translating the droop characteristic curve, adjusting the output power, maintaining the DC voltage in a reasonable range, reducing the capacity of the DC side energy storage device. Photovoltaic grid connected inverter chooses the new droop control strategy.

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Węcel, Daniel, Michał Jurczyk, Wojciech Uchman und Anna Skorek-Osikowska. „Investigation on System for Renewable Electricity Storage in Small Scale Integrating Photovoltaics, Batteries, and Hydrogen Generator“. Energies 13, Nr. 22 (19.11.2020): 6039. http://dx.doi.org/10.3390/en13226039.

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In this article the solution based on hydrogen generation to increase the flexibility of energy storage systems is proposed. Operating characteristics of a hydrogen generator with integrated electrical energy storage and a photovoltaic installation were determined. The key role of the electricity storage in the proposed system was to maintain the highest operating efficiency related to the nominal parameters of the hydrogen generator. The hydrogen generators achieved the highest energy efficiency for the nominal operating point at the highest power output. Lead-acid batteries were used to ensure the optimal operating conditions for the hydrogen generator supplied with renewable energy throughout the day. The proposed system reduces significantly the hydrogen generator nominal power and devices in system operate in such a way to improve their efficiency and durability. The relations between individual components and their constraints were determined. The proposed solution is fully in-line with previously investigated technologies for improving grid stability and can help incorporate renewable energy sources to increase the sustainability of the energy sector and green hydrogen production.

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Dissertationen zum Thema "Green hydrogen energy systems"

Hendriks, Kjel. „Disruptive Innovation in Green Energy Sectors: An Entrepreneurial Perspective“. Thesis, Jönköping University, IHH, Företagsekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-52853.

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Background: Green hydrogen energy systems can address environmental and societal concerns within the energy sector. Therefore, increased attentions from both public and private stakeholders has led to the general perception that hydrogen systems can serve as a disruptive innovation. Given that disruption innovation theory has seen increased entrepreneurial involvement over recent years, the study focuses on assessing the role of green entrepreneurs within the implementation of hydrogen systems through cross-collaborative efforts and disruptive innovation drivers. Purpose: The development of a theoretical matrix that interconnects disruptive innovation, entrepreneurial involvement, and cross-collaborative initiatives to establish entrepreneurial positioning roles within the energy market. Method: The epistemology chosen was interpretivist, and its ontology subjectivism. The research followed an inductive approach. The research was qualitatively conducted and adopted a case study approach. The data was collected through semi-structured interviews, and followed a theoretical sampling approach. Conclusion: The study proposes a theoretical matrix that extended disruptive innovation theory to green entrepreneurship and concluded that high levels of cross-collaboration, and a high innovation impact, serve as key drivers for green entrepreneurial implementations of disruptive energy. Results highlight the need for entrepreneurial involvement across all stages of market implementations.

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Gazey, Ross Neville. „Sizing hybrid green hydrogen energy generation and storage systems (HGHES) to enable an increase in renewable penetration for stabilising the grid“. Thesis, Robert Gordon University, 2014. http://hdl.handle.net/10059/947.

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A problem that has become apparently growing in the deployment of renewable energy systems is the power grids inability to accept the forecasted growth in renewable energy generation integration. To support forecasted growth in renewable generation integration, it is now recognised that Energy Storage Technologies (EST) must be utilised. Recent advances in Hydrogen Energy Storage Technologies (HEST) have unlocked their potential for use with constrained renewable generation. HEST combines Hydrogen production, storage and end use technologies with renewable generation in either a directly connected configuration, or indirectly via existing power networks. A levelised cost (LC) model has been developed within this thesis to identify the financial competitiveness of the different HEST application scenarios when used with grid constrained renewable energy. Five HEST scenarios have been investigated to demonstrate the most financially competitive configuration and the benefit that the by-product oxygen from renewable electrolysis can have on financial competitiveness. Furthermore, to address the lack in commercial software tools available to size an energy system incorporating HEST with limited data, a deterministic modelling approach has been developed to enable the initial automatic sizing of a hybrid renewable hydrogen energy system (HRHES) for a specified consumer demand. Within this approach, a worst-case scenario from the financial competitiveness analysis has been used to demonstrate that initial sizing of a HRHES can be achieved with only two input data, namely – the available renewable resource and the load profile. The effect of the electrolyser thermal transients at start-up on the overall quantity of hydrogen produced (and accordingly the energy stored), when operated in conjunction with an intermittent renewable generation source, has also been modelled. Finally, a mass-transfer simulation model has been developed to investigate the suitability of constrained renewable generation in creating hydrogen for a hydrogen refuelling station.

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Thekkenthiruthummal, Kunjumon Razif, und Baby Rinto Cheruvil. „Feasibility Study of Green Hydrogen PowerGeneration in Kavaratti Island, India“. Thesis, Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-44617.

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Controlling greenhouse gas emissions is essential by the introduction of renewable energysources. The island Lakshadweep in India has been dependent on non-renewable generationof electricity over the years. To make them self-sufficient in the energy sector, theintroduction of green hydrogen from wind and solar sources and its storage for sustainablefuture is a great initiative. The factors such as renewable sources, electrolyzer technology,fuel cells included in hydrogen production are optimized for this project in a cost-effectivemanner over the existing diesel power generation. The cost comparison of this greenhydrogen system with cost of diesel for next 20 years clearly illustrated the importance ofrenewable energy sources for a sustainable future.

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Gammon, Rupert. „The integration of hydrogen energy storage with renewable energy systems“. Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/7847.

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This thesis concerns the design, implementation and operation of a hydrogen energy storage facility that has been added to an existing renewable energy system at West Beacon Farm, Leicestershire, UK. The hydrogen system consists of an electrolyser, a pressurised gas store and fuel cells. At times of surplus electrical supply, the electrolyser converts electrical energy into chemical energy in the form of hydrogen. This hydrogen is stored until there is a shortage of electrical energy to power the loads on the system, at which point it is reconverted back to electricity by the process of reverse-electrolysis that takes place within a fuel cell. The renewable energy sources, supplying electrical power to domestic and office loads at the site, are photovoltaic, wind and micro-hydroelectric. This work is being carried out through a project, conceived and overseen by the author, known as the Hydrogen and Renewables Integration (HARI) project. The purpose of this study is to demonstrate and gain experience in the integration of hydrogen energy storage with renewable energy systems and, most importantly, to develop software models that could be used for the design of future systems of this type in a range of applications. Effective models have been created and verified against the real-world operation of the system. These models have been largely completed, although some minor details remain unfinished as the are dependant upon studies linked to this one which are yet to be concluded. Subject to some fine tuning that this would entail, then, the models can be used to design a stand-alone, integrated hydrogen and renewable energy system, where only the load profile and weather conditions of a site are known. Significant practical experience has been gained through the design, installation and two years' of operation of the system. Many important insights have been obtained in relation to the integration of the system and the design and operation of its components.

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Korpås, Magnus. „Distributed Energy Systems with Wind Power and Energy Storage“. Doctoral thesis, Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-132.

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The topic of this thesis is the study of energy storage systems operating with wind power plants. The motivation for applying energy storage in this context is that wind power generation is intermittent and generally difficult to predict, and that good wind energy resources are often found in areas with limited grid capacity. Moreover, energy storage in the form of hydrogen makes it possible to provide clean fuel for transportation. The aim of this work has been to evaluate how local energy storage systems should be designed and operated in order to increase the penetration and value of wind power in the power system. Optimization models and sequential and probabilistic simulation models have been developed for this purpose.

Chapter 3 presents a sequential simulation model of a general windhydrogen energy system. Electrolytic hydrogen is used either as a fuel for transportation or for power generation in a stationary fuel cell. The model is useful for evaluating how hydrogen storage can increase the penetration of wind power in areas with limited or no transmission capacity to the main grid. The simulation model is combined with a cost model in order to study how component sizing and choice of operation strategy influence the performance and economics of the wind-hydrogen system. If the stored hydrogen is not used as a separate product, but merely as electrical energy storage, it should be evaluated against other and more energy efficient storage options such as pumped hydro and redox flow cells. A probabilistic model of a grid-connected wind power plant with a general energy storage unit is presented in chapter 4. The energy storage unit is applied for smoothing wind power fluctuations by providing a firm power output to the grid over a specific period. The method described in the chapter is based on the statistical properties of the wind speed and a general representation of the wind energy conversion system and the energy storage unit. This method allows us to compare different storage solutions.

In chapter 5, energy storage is evaluated as an alternative for increasing the value of wind power in a market-based power system. A method for optimal short-term scheduling of wind power with energy storage has been developed. The basic model employs a dynamic programming algorithm for the scheduling problem. Moreover, different variants of the scheduling problem based on linear programming are presented. During on-line operation, the energy storage is operated to minimize the deviation between the generation schedule and the actual power output of the wind-storage system. It is shown how stochastic dynamic programming can be applied for the on-line operation problem by explicitly taking into account wind forecast uncertainty. The model presented in chapter 6 extends and improves the linear programming model described in chapter 5. An operation strategy based on model predictive control is developed for effective management of uncertainties. The method is applied in a simulation model of a wind-hydrogen system that supplies the local demand for electricity and hydrogen. Utilization of fuel cell heat and electrolytic oxygen as by-products is also considered. Computer simulations show that the developed operation method is beneficial for grid-connected as well as for isolated systems. For isolated systems, the method makes it possible to minimize the usage of backup power and to ensure a secure supply of hydrogen fuel. For grid-connected wind-hydrogen systems, the method could be applied for maximizing the profit from operating in an electricity market.

Comprehensive simulation studies of different example systems have been carried out to obtain knowledge about the benefits and limitations of using energy storage in conjunction with wind power. In order to exploit the opportunities for energy storage in electricity markets, it is crucial that the electrical efficiency of the storage is as high as possible. Energy storage combined with wind power prediction tools makes it possible to take advantage of varying electricity prices as well as reduce imbalance costs. Simulation results show that the imbalance costs of wind power and the electricity price variations must be relatively high to justify the installation of a costly energy storage system. Energy storage is beneficial for wind power integration in power systems with high-cost regulating units, as well as in areas with weak grid connection.

Hydrogen can become an economically viable energy carrier and storage medium for wind energy if hydrogen is introduced into the transportation sector. It is emphasized that seasonal wind speed variations lead to high storage costs if compressed hydrogen tanks are used for long-term storage. Simulation results indicate that reductions in hydrogen storage costs are more important than obtaining low-cost and high-efficient fuel cells and electrolyzers. Furthermore, it will be important to make use of the flexibility that the hydrogen alternative offers regarding sizing, operation and possibly the utilization of oxygen and heat as by-products.

The main scientific contributions from this thesis are the development of

- a simulation model for estimating the cost and energy efficiency of wind-hydrogen systems,

- a probabilistic model for predicting the performance of a gridconnected wind power plant with energy storage,

- optimization models for increasing the value of wind power in electricity markets by the use of hydrogen storage and other energy storage solutions and the system knowledge about wind energy and energy storage that has been obtained by the use of these models.

Paper 1 is reprinted with kind permission of ACTA Press. Paper 2 is reprinted with kind permission of Elsevier/ Science Direct. http://www.elsevier.com, http://www.sciencedirect.com Paper 3 is reprinted with kind permission of IEEE.

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Janon, Akraphon, und s2113730@student rmit edu au. „Wind-hydrogen energy systems for remote area power supply“. RMIT University. Aerospace, Mechanical & Manufacturing Engineering, 2010. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20100329.094605.

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Wind-hydrogen systems for remote area power supply are an early niche application of sustainable hydrogen energy. Optimal direct coupling between a wind turbine and an electrolyser stack is essential for maximum electrical energy transfer and hydrogen production. In addition, system costs need to be minimised if wind-hydrogen systems are to become competitive. This paper investigates achieving near maximum power transfer between a fixed pitched variable-speed wind turbine and a Proton Exchange Membrane (PEM) electrolyser without the need for intervening voltage converters and maximum power point tracking electronics. The approach investigated involves direct coupling of the wind turbine with suitably configured generator coils to an optimal series-parallel configuration of PEM electrolyser cells so that the I-V characteristics of both the wind turbine and electrolyser stack are closely matched for maximum power transfer. A procedure for finding these optimal con figurations and hence maximising hydrogen production from the system is described. For the case of an Air 403 400 W wind turbine located at a typical coastal site in south-eastern Australia and directly coupled to an optimally configured 400 W stack of PEM electrolysers, it is estimated that up to 95% of the maximum achievable energy can be transferred to the electrolyser over an annual period. The results of an extended experiment to test this theoretical prediction for an actual Air 403 wind turbine are reported. The implications of optimal coupling between a PEM electrolyser and an aerogenerator for the performance and overall economics of wind-energy hydrogen systems for RAPS applications are discussed.

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Monaghan, Rory F. D. (Rory Francis Desmond). „Hydrogen storage of energy for small power supply systems“. Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32361.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.
Includes bibliographical references (p. 91-92).
Power supply systems for cell phone base stations using hydrogen energy storage, fuel cells or hydrogen-burning generators, and a backup generator could offer an improvement over current power supply systems. Two categories of hydrogen-based power systems were analyzed: Wind-hydrogen systems and peak-shaving hydrogen systems. Modeling of base station requirements and alternative power supply system performance was carried out using MATLAB. Final results for potential alternative systems were compared to those for the current power systems. In the case of the wind- hydrogen systems, results were also compared to those of a wind-battery system. Overall feasibility was judged primarily on the net present cost of the power supply systems. Other considerations included conformity to present regulations. Sensitivity analysis of the wind-hydrogen model was carried out to identify the controlling variables. Numerous parameters were varied over realistic ranges. Important parameters were found to include wind resource, electrolyzer size, distance from electricity grid, price of diesel fuel, and electrolyzer and fuel cell cost. The model verified cell phone industry figures regarding the geographical conditions favorable to diesel genset use. Final results for wind-hydrogen systems suggest that for today's electrolyzer and fuel cell costs, wind-battery-diesel systems are the most suitable power system more than 8km from the existing electricity grid, with an annual average wind speed of 7m/s or more, and where diesel costs more than $2.20/gallon.
(cont.) Thinking to the future, with 20% reduced electrolyzer and fuel cell costs, a wind-fuel cell-diesel system with a 15kW electrolyzer is the most suitable system at locations greater than 8km from the existing electricity grid with an annual average wind speed of 7rn/s or more and total diesel costs greater than $2/gallon. Within 8km the grid, in all cases, grid connection is most suitable. Outside this range, with diesel prices below $2/gallon, a genset only system is most suitable in most cases. Analysis of the peak-shaving hydrogen system suggests that it is not suitable for deployment under any realistic circumstances. Replenishment of hydrogen stores has a substantial power requirement.
by Rory F.D. Monaghan.
S.M.

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Liu, Jiashang. „Resource Allocation and Energy Management in Green Network Systems“. The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587577356321898.

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Chidziva, Stanford. „Green hydrogen production for fuel cell applications and consumption in SAIAMC research facility“. University of Western Cape, 2020. http://hdl.handle.net/11394/7859.

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Philosophiae Doctor - PhD
Today fossil fuels such as oil, coal and natural gas are providing for our ever growing energy needs. As the world’s fossil fuel reserves fast become depleted, it is vital that alternative and cleaner fuels are found. Renewable energy sources are the way of the future energy needs. A solution to the looming energy crisis can be found in the energy carrier hydrogen. Hydrogen can be produced by a number of production technologies. One hydrogen production method explored in this study is electrolysis of water.

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Björkman, Katarina. „Hydrogen gas in Sweden : Is hydrogen gas a viable energy carrier in Sweden?“ Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-49015.

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Detta arbete innefattar att undersöka hur vätgas kan användas i Sverige, dels för energilagring men även som bränsle för fordon. Den ökande användningen av varierande förnyelsebara energikällor i den svenska energimixen innebär problem med stabilitet i kraftnätet, något som energilagring kan vara en lösning på. Samtidigt finns mål att fasa ut fossila energikällor, exempelvis diesel och bensin, något som transportsektorn är mycket beroende av. Enligt intervjuerna så är ett av de stora hindren för att implementera vätgas i Sverige att det saknas standarder och regelverk. Likaså framkommer det att de intervjuobjektens projekt inom vätgas i nuläget inte är pengamässigt lönsamma. I beräkningarna framkom det att varken det nuvarande fallet eller målfallet leder till lönsamma investeringar. Den sektor som är närmast lönsamhet är transportsektorn som kräver antingen en minskning på 90 % av komponenternas kostnad eller en 10-faldig ökning av priset på fossila bränslen. Slutsatserna dragna i denna studie är att det finns användningsområden för vätgas inom flera områden, bränsle, energilagring och inom industrin, utöver den användningen inom industrin som finns idag. För att ha en hållbar produktion av vätgas bör denna vara med elektrolys som baseras på emissionsfri elektricitet, exempelvis från solceller. De ekonomiska målen, i studien kallat target case, är inte tillräckliga utan ytterligare kostnadsminskningar kommer att behövas.
There is a rising demand for energy and at the same time, fossil fuels need to be phased out due to global warming. This means that the energy needs to come from renewable energy resources, for instance photovoltaics. One issue with such energy sources is that they may have variating production which can induce issues with stability in the electrical grid. This study aims to investigate hydrogen in Sweden as energy storage and vehicle fuel. Methods used are literature review, interviews and calculations. According to the interviews are one of the main issues with implementing hydrogen the lack of standards. Today it is the local fire department who approves of hydrogen system which induces irregularities in the handling. It is also said that none of the projects in the interviews is profitable moneywise, something that also can be seen in the calculations. In order to reach break-even some serious changes with regarding costs of components or the alternative, for instance, fossil fuel and electricity. The application closest to break even is transportation which demands a 90 % decrease in component price or a 10-fold increase in fossil fuel price. In conclusion, there are future applications for hydrogen as energy storage, vehicle fuel and in industry, apart from the current industry applications. The most sustainable way to produce hydrogen is via electrolysis with emission-free electricity. In order for hydrogen to become economically viable, the target case is not enough but even greater cost reductions are needed.

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Bücher zum Thema "Green hydrogen energy systems"

Photoelectrochemical hydrogen production. New York: Springer, 2012.

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Zini, Gabriele, und Paolo Tartarini. Solar Hydrogen Energy Systems. Milano: Springer Milan, 2012. http://dx.doi.org/10.1007/978-88-470-1998-0.

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Bogdan, Baranowski, Hrsg. Carbon nanomaterials in clean energy hydrogen systems. Dordrecht: Springer, 2008.

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Baranowski, Bogdan, Svetlana Yu Zaginaichenko, Dmitry V. Schur, Valeriy V. Skorokhod und Ayfer Veziroglu, Hrsg. Carbon Nanomaterials in Clean Energy Hydrogen Systems. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8898-8.

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Naterer, Greg F. Hydrogen Production from Nuclear Energy. London: Springer London, 2013.

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Paolo, Tartarini, Hrsg. Solar hydrogen energy systems: Science and technology for the hydrogen economy. Milan: Springer, 2011.

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Practical hydrogen systems: An experimenter's guide. Wheelock, VT: Wheelock Mountain Publications, 2006.

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Zaginaichenko, Svetlana Yu, Dmitry V. Schur, Valeriy V. Skorokhod, Ayfer Veziroglu und Beycan İbrahimoğlu, Hrsg. Carbon Nanomaterials in Clean Energy Hydrogen Systems - II. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0899-0.

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Winter, C. J. Hydrogen as an Energy Carrier: Technologies, Systems, Economy. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988.

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Veziroğlu, Ayfer. Black Sea Energy Resource Development and Hydrogen Energy Problems. Dordrecht: Springer Netherlands, 2013.

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Buchteile zum Thema "Green hydrogen energy systems"

Takasaki, Koji, und Hiroshi Tajima. „Hydrogen Combustion Systems“. In Green Energy and Technology, 335–55. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56042-5_25.

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van Wijk, Ad, und Frank Wouters. „Hydrogen–The Bridge Between Africa and Europe“. In Shaping an Inclusive Energy Transition, 91–119. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74586-8_5.

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AbstractThis chapter describes a European energy system based on 50% renewable electricity and 50% green hydrogen, which can be achieved by 2050. The green hydrogen shall consist of hydrogen produced in Europe, complemented by hydrogen imports, especially from North Africa. Hydrogen import from North Africa will be beneficial for both Europe and North Africa. A bold energy sector strategy with an important infrastructure component is suggested, which differs from more traditional bottom-up sectoral strategies. This approach guarantees optimized use of (existing) infrastructure, has low risk and cost, improves Europe’s energy security and supports European technology leadership. In North Africa it would foster economic development, boost export, create future-oriented jobs in a high-tech sector and support social stability.

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Zini, Gabriele, Simone Pedrazzi und Paolo Tartarini. „Use of Soft Computing Techniques in Renewable Energy Hydrogen Hybrid Systems“. In Soft Computing in Green and Renewable Energy Systems, 37–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22176-7_2.

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Sasaki, Kazunari, und Kohei Ito. „Hydrogen Energy Education“. In Green Energy and Technology, 587–93. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56042-5_44.

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Li, Hai-Wen, und Kiyoaki Onoue. „Compressed Hydrogen: High-Pressure Hydrogen Tanks“. In Green Energy and Technology, 273–78. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56042-5_19.

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Dohi, Hideyuki, Masahiro Kasai und Kiyoaki Onoue. „Hydrogen Infrastructure“. In Green Energy and Technology, 537–47. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56042-5_40.

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Shabani, Bahman, und John Andrews. „Hydrogen and Fuel Cells“. In Energy Sustainability Through Green Energy, 453–91. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2337-5_17.

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Li, Hai-Wen. „Liquid Hydrogen Carriers“. In Green Energy and Technology, 253–64. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56042-5_17.

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Yamabe, Junichiro, und Saburo Matsuoka. „Hydrogen Safety Fundamentals“. In Green Energy and Technology, 359–84. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56042-5_26.

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Braga, Lúcia Bollini, Márcio Evaristo da Silva, Túlio Stefani Colombaroli, Celso Eduardo Tuna, Fernando Henrique Mayworm de Araujo, Lucas Fachini Vane, Daniel Travieso Pedroso und José Luz Silveira. „Hydrogen Production Processes“. In Green Energy and Technology, 5–76. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-41616-8_2.

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Konferenzberichte zum Thema "Green hydrogen energy systems"

Arlt, Marie-Louise, Goncalo Ferreira Cardoso und Dean Weng. „Hydrogen storage applications in industrial microgrids“. In 2017 IEEE Green Energy and Smart Systems Conference (IGESSC). IEEE, 2017. http://dx.doi.org/10.1109/igesc.2017.8283465.

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Dagdougui, Hanane, Ahmed Ouammi und Roberto Sacile. „Optimization and control of hydrogen and energy flows in a Green Hydrogen Refuelling Stations“. In 2011 IEEE International Systems Conference (SysCon). IEEE, 2011. http://dx.doi.org/10.1109/syscon.2011.5929057.

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Li, Li, Ziyu Zeng, Xinran He, Kang Wang, Fangde Chi und Tao Ding. „Risk Assessment for Renewable Energy Penetrated Power Systems Considering Battery and Hydrogen Storage Systems“. In 2021 Power System and Green Energy Conference (PSGEC). IEEE, 2021. http://dx.doi.org/10.1109/psgec51302.2021.9542445.

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Cao, Yi, Yu Huang, Runze Liu, Yue Zhuo, Ping Liu und Jingfeng Nie. „Capacity Optimization of Multi-energy complementary Microgrid Considering Green Hydrogen System“. In 2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE). IEEE, 2021. http://dx.doi.org/10.1109/ceepe51765.2021.9475641.

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Arruda, David, David Browne, Chris Thongkham und Mansour Zenouzi. „Small-Scale, Green-Powered Hydrogen Generation System“. In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68760.

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One of the major road blocks in the transition from the current oil economy to the future hydrogen fuel economy is the availability of low cost hydrogen fuel for the average consumer. Currently, the price per kilogram of hydrogen fuel is higher than the cost of an equivalent measure of gasoline and its availability is limited to large metropolitan areas. Both of these factors prevent hydrogen from being an attractive alternative to gasoline for most consumers. The goal of this project, in a senior thermal design course, is to design and construct a low-cost hydrogen generation system for residential hydrogen fuel production and storage. The system will be powered by renewable sources of energy; namely a micro-scale wind turbine and a solar panel. The power generated will be used to power a small-scale PEM electrolyzer to produce hydrogen gas that will then be stored at low pressure in a safe, metal hydride storage tank. This relatively low cost system will provide the average consumer with the ability to safely produce hydrogen fuel for use in residential fuel cells or fuel cell-powered vehicles, making hydrogen fuel an attractive alternative to fossil fuels.

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Zamfirescu, Calin, und Ibrahim Dincer. „Ammonia as a Green Fuel for Transportation“. In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54328.

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In this paper, the potential benefits and technical advantages of using ammonia as a green fuel for transportation are analyzed based on performance indicators including the system effectiveness, the driving range, fuel tank compactness, and the cost of driving per km. Similar to hydrogen, ammonia is a synthetic product that can be obtained thermally, physically, chemically or biologically either from fossil fuels, biomass, or other renewable sources and can be used as a clean fuel. The refrigeration effect of ammonia is another advantage of it and is included in the efficiency calculations. The cooling power represents about 7–10% from the engine power, being thus a valuable side benefit of ammonia’s presence on-board. If the cooling effect is taken into consideration, the system’s effectiveness can be improved by about 20%. It is shown that if a medium size hydrogen car converted to NH3, it becomes more cost effective per driving range as low as CN$3.2/100 km.

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Okamitsu, Nobuharu, Kenshi Nishino, Faye Duncan und Takeshi Tanaka. „Construction of a Preliminary Educational System for Fuel Cell Using Hydrogen“. In 2020 4th International Conference on Green Energy and Applications (ICGEA). IEEE, 2020. http://dx.doi.org/10.1109/icgea49367.2020.239704.

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Raut, Gagee, und Navid Goudarzi. „Hydrogen Production From Renewables: Marine and Hydrokinetic Energy Systems“. In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71859.

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Hydrogen can be produced from various primary resources by using different processes. The full benefits of hydrogen production can be obtained when it is produced from renewable energy resources. Among these emerging renewable energy resources, marine and hydrokinetic (MHK) energy systems lower variability in the energy production. Also, more than 50% of the total US population resides near water bodies. In this paper, a brief review of renewable energy-based hydrogen production systems is provided, the emission level of both conventional and renewable energy sources for producing the same amount of hydrogen are compared using GREET model, and research needs for further MHK-based hydrogen production systems are discussed. The results showed the significant emission reductions obtained from renewable-based hydrogen production systems. Moreover, the study showed the potential of producing the same amount of hydrogen with less resource quantity of wave energy compared to that from other renewables such as solar energy.

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Mikalsen, Kristian. „Subsea Liquid Energy Storage – The Bridge Between Oil and Energy/Hydrogen“. In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31294-ms.

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Abstract This paper demonstrates a pioneering technology adaption for using a membrane-based subsea storage solution for oil/condensate, modified into storing clean energy storage in the form of ammonia (as a hydrogen energy carrier). The immediate application will provide an economical alternative to electrification of offshore platforms, instead of using expensive cables from shore. Storing ammonia at the seabed using innovative subsea storage technologies will dramatically reduce CO2 emissions for offshore assets. The fluid will be stored in a safe manner on the seafloor, protecting both personnel and marine life. The next step will be to include subsea ammonia storage as part of the global logistical value chain, which can power the merchant shipping fleet. Clean ammonia can be produced using renewable resources as wind or solar. It focuses on bridging the ongoing oil/condensate storage qualification, adapted into storing ammonia. The large-scale verification test scope is explained, and we show how the test is extended to also prove the concept of safe energy/ammonia storage. The ammonia storage concept is explained, and we show how this can be included as part of a low carbon future. The focus is the immediate market for providing clean power to existing or new offshore assets. The full system solution will encompass storage tanks placed nearby the platforms at safe water depths, riser systems providing fuel to the ammonia power generators, and the tank filling systems. Bridging and adapting technologies from the petroleum industry into renewables shows the importance of utilizing the technology developments and competence of the oil and gas business. The technical evaluations have shown that the oil/condensate storage can be adapted into storing energy/ammonia with minor modifications. Converting hydrogen into ammonia gives slight energy losses, but it is defended by the large economic benefits of storing ammonia versus pressure storage of hydrogen. The paper presents qualification work already completed and how to implement ammonia fuel storage for platforms. In addition, we show the test setup for a large-scale qualification provided by an original equipment manufacturer (OEM) company together with major Operators. Innovative modular design methods have shown that the concept can be included on existing offshore assets, which have limited topside space available. Adding green or blue ammonia as an alternative to power cables from shore have several benefits, and many of the connecting building blocks are falling into place. The main conclusion is how to adapt Novel technologies from the oil industry to store ammonia in a safe way on the seafloor.

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Kurz, Rainer, Matt Lubomirsky und Francis Bainier. „Hydrogen in Pipelines: Impact of Hydrogen Transport in Natural Gas Pipelines“. In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14040.

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Abstract The increased use of renewable energy has made the need to store electricity a central requirement. One of the concepts to address this need is to produce hydrogen from surplus electricity, and to use the existing natural gas pipeline system to transport the hydrogen. Generally, the hydrogen content in the pipeline flow would be below 20%, thus avoiding the problems of transporting and burning pure hydrogen. The natural gas – hydrogen mixtures have to be considered both from a gas transport and a gas storage perspective. In this study, the impact of various levels of hydrogen in a pipeline system are simulated. The pipeline hydraulic simulation will provide the necessary operating conditions for the gas compressors, and the gas turbines that drive these compressors. The result of the study addresses the impact on transportation efficiency in terms of energy consumption and the emission of green house gases. Further, necessary concepts in the capability to store gas to better balance supply and demand are discussed.

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Berichte der Organisationen zum Thema "Green hydrogen energy systems"

Muelaner, Jody Emlyn. Unsettled Issues in Electrical Demand for Automotive Electrification Pathways. SAE International, Januar 2021. http://dx.doi.org/10.4271/epr2021004.

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With the current state of automotive electrification, predicting which electrification pathway is likely to be the most economical over a 10- to 30-year outlook is wrought with uncertainty. The development of a range of technologies should continue, including statically charged battery electric vehicles (BEVs), fuel cell electric vehicles (FCEVs), plug-in hybrid electric vehicles (PHEVs), and EVs designed for a combination of plug-in and electric road system (ERS) supply. The most significant uncertainties are for the costs related to hydrogen supply, electrical supply, and battery life. This greatly is dependent on electrolyzers, fuel-cell costs, life spans and efficiencies, distribution and storage, and the price of renewable electricity. Green hydrogen will also be required as an industrial feedstock for difficult-to-decarbonize areas such as aviation and steel production, and for seasonal energy buffering in the grid. For ERSs, it is critical to understand how battery life will be affected by frequent cycling and the extent to which battery technology from hybrid vehicles can be applied. Unsettled Issues in Electrical Demand for Automotive Electrification Pathways dives into the most critical issues the mobility industry is facing.

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Martinez, Ulises, Siddharth Komini Babu, Jacob Spendelow, Rodney Borup und Alexander Gupta. Hydrogen Energy: Production and Utilization for a Green Economy. Office of Scientific and Technical Information (OSTI), September 2020. http://dx.doi.org/10.2172/1659145.

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Ogden, J. M., T. Kreutz, S. Kartha und L. Iwan. Hydrogen energy systems studies. Final technical report. Office of Scientific and Technical Information (OSTI), August 1996. http://dx.doi.org/10.2172/290910.

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Collins, Terrence J., und Colin Horwitz. Energy Efficient Catalytic Activation of Hydrogen peroxide for Green Chemical Processes: Final Report. Office of Scientific and Technical Information (OSTI), November 2004. http://dx.doi.org/10.2172/834329.

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Swaminathan, S., und R. K. Sen. Electric utility applications of hydrogen energy storage systems. Office of Scientific and Technical Information (OSTI), Oktober 1997. http://dx.doi.org/10.2172/674694.

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Ruth, Mark, Dylan Cutler, Francisco Flores-Espino und Greg Stark. The Economic Potential of Nuclear-Renewable Hybrid Energy Systems Producing Hydrogen. Office of Scientific and Technical Information (OSTI), April 2017. http://dx.doi.org/10.2172/1351061.

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Pruez, Jacky, Samir Shoukry, Gergis William, Thomas Evans und Hermann Alcazar. Energy Dense, Lighweight, Durable, Systems for Storage and Delivery of Hydrogen. Office of Scientific and Technical Information (OSTI), Dezember 2008. http://dx.doi.org/10.2172/1062653.

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Schucan, T. Case Studies of integrated hydrogen systems. International Energy Agency Hydrogen Implementing Agreement, Final report for Subtask A of task 11 - Integrated Systems. Office of Scientific and Technical Information (OSTI), Dezember 1999. http://dx.doi.org/10.2172/775587.

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Steward, D., und J. Zuboy. Community Energy: Analysis of Hydrogen Distributed Energy Systems with Photovoltaics for Load Leveling and Vehicle Refueling. Office of Scientific and Technical Information (OSTI), Oktober 2014. http://dx.doi.org/10.2172/1160182.

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Wegrzyn, J., und A. Mezzina. Annual operating plan for fiscal year 1990 for chemical/hydrogen energy systems program. Office of Scientific and Technical Information (OSTI), Juni 1989. http://dx.doi.org/10.2172/5392083.

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