Applications & Pathways
Adopting Hydrogen Direct Reduction for the Swedish Steel Industry: A Technological Innovation System (TIS) Study
Sep 2019
Publication
The Swedish steel industry stands before a potential transition to drastically lower its CO2 emissions using direct hydrogen reduction instead of continuing with coke-based blast furnaces. Previous studies have identified hydrogen direct reduction as a promising option. We build upon earlier efforts by performing a technological innovation system study to systematically examine the barriers to a transition to hydrogen direct reduction and by providing deepened quantitative empirics to support the analysis. We also add extended paper and patent analysis methodology which is particularly useful for identifying actors and their interactions in a technological system. We conclude that while the innovation system is currently focused on such a transition notable barriers remain particularly in coordination of the surrounding technical infrastructure and the issue of maintaining legitimacy for such a transition in the likely event that policies to address cost pressures will be required to support this development.
Techno-economic Analysis of Hydrogen Enhanced Methanol to Gasoline Process from Biomass-derived Synthesis Gas
Mar 2021
Publication
In this paper the implications of the use of hydrogen on product yield and conversion efficiency as well as on economic performance of a hydrogen enhanced Biomass-to-Liquid (BtL) process are analyzed. A process concept for the synthesis of fuel (gasoline and LPG) from biomass-derived synthesis gas via Methanol-to-Gasoline (MtG) route with utilization of carbon dioxide from gasification by feeding additional hydrogen is developed and modeled in Aspen Plus. The modeled process produces 0.36 kg fuel per kg dry straw. Additionally 99 MW electrical power are recovered from purge and off gases from fuel synthesis in CCGT process covering the electricity consumption of fuel synthesis and synthesis gas generation. The hydrogen enhanced BtL procces reaches a combined chemical and electrical efficiency of 48.2% and overall carbon efficiency of 69.5%. The total product costs (TPC) sum up to 3.24 €/kg fuel. Raw materials (hydrogen and straw) make up the largest fraction of TPC with a total share of 75%. The hydrogen enhanced BtL process shows increased chemical energy and carbon efficiencies and thus higher product yields. However economic analysis shows that the process is unprofitable under current conditions due to high costs for hydrogen provision.
Contrasting European Hydrogen Pathways: An Analysis of Differing Approaches in Key Markets
Mar 2021
Publication
European countries approach the market ramp-up of hydrogen very differently. In some cases the economic and political starting points differ significantly. While the probability is high that some countries such as Germany or Italy will import hydrogen in the long term other countries such as United Kingdom France or Spain could become hydrogen exporters. The reasons for this are the higher potential for renewable energies but also a technology-neutral approach on the supply side.
Extremely Halophilic Biohydrogen Producing Microbial Communities from High-Salinity Soil and Salt Evaporation Pond
Jun 2021
Publication
Extreme halophiles offer the advantage to save on the costs of sterilization and water for biohydrogen production from lignocellulosic waste after the pretreatment process with their ability to withstand extreme salt concentrations. This study identifies the dominant hydrogen-producing genera and species among the acclimatized extremely halotolerant microbial communities taken from two salt-damaged soil locations in Khon Kaen and one location from the salt evaporation pond in Samut Sakhon Thailand. The microbial communities’ V3–V4 regions of 16srRNA were analyzed using high-throughput amplicon sequencing. A total of 345 operational taxonomic units were obtained and the high-throughput sequencing confirmed that Firmicutes was the dominant phyla of the three communities. Halanaerobium fermentans and Halanaerobacter lacunarum were the dominant hydrogen-producing species of the communities. Spatial proximity was not found to be a determining factor for similarities between these extremely halophilic microbial communities. Through the study of the microbial communities strategies can be developed to increase biohydrogen molar yield.
Developing New Understanding of Photoelectrochemical Water Splitting Via In-situ Techniques: A Review on Recent Progress
Mar 2014
Publication
Photoelectrochemical (PEC) water splitting is a promising technology for solar hydrogen production to build a sustainable renewable and clean energy economy. Given the complexity of the PEC water splitting processes it is important to note that developing in-situ techniques for studying PEC water splitting presents a formidable challenge. This review is aimed at highlighting advantages and disadvantages of each technique while offering a pathway of potentially combining several techniques to address different aspects of interfacial processes in PEC water splitting. We reviewed recent progress in various techniques and approaches utilized to study PEC water splitting focusing on spectroscopic and scanning-probe methods.
Role of Batteries and Fuel Cells in Achieving Net Zero- Session 1
Mar 2021
Publication
The House of Lords Science and Technology Committee will question experts on the role of batteries and fuel cells for decarbonisation and how much they can contribute to meeting the net-zero target.
Tuesday’s evidence session will be the first of the committee’s new decarbonisation inquiry which was launched on Wednesday 3 March and is currently accepting written evidence submissions.
The session will give an overview of battery and fuel cell technologies and their applications in transport and other sectors. The Committee will ask how battery manufacture can be scaled up to meet wide-scale deployment of electric vehicles and whether technical challenges can be overcome to allow batteries and fuel cells to be used in HGVs and trains. The Committee will also investigate the wider use of batteries and fuel cells in various sectors including integration into power grids and heating systems.
Inquiry Role of batteries and fuel cells in achieving Net Zero
Professor Nigel Brandon Dean of the Faculty of Engineering at Imperial College London
Professor Mauro Pasta Associate Professor of Materials at University of Oxford
Professor Pam Thomas CEO at Faraday Institution and Pro Vice Chancellor for Research at University of Warwick
Mr Amer Gaffar Director of Manchester Fuel Cell Innovation Centre at Manchester Metropolitan University
Possible questions
What contribution are battery and fuel cell technologies currently making towards decarbonization in the UK?
What advances do we expect to see in battery and fuel cell technologies and over what timeframes?
How quickly can UK battery and fuel cell manufacture be scaled up to meet electrification demands?
What are the challenges facing technological innovation and deployment in heavy transport?
Are there any sectors where battery and fuel cell technologies are not currently used but could contribute to decarbonisation?
What are the life cycle environmental impacts of batteries and fuel cells?
Parliament TV video of the meeting
This is part one of a three part enquiry.
Part two can be found here and part three can be found here.
Tuesday’s evidence session will be the first of the committee’s new decarbonisation inquiry which was launched on Wednesday 3 March and is currently accepting written evidence submissions.
The session will give an overview of battery and fuel cell technologies and their applications in transport and other sectors. The Committee will ask how battery manufacture can be scaled up to meet wide-scale deployment of electric vehicles and whether technical challenges can be overcome to allow batteries and fuel cells to be used in HGVs and trains. The Committee will also investigate the wider use of batteries and fuel cells in various sectors including integration into power grids and heating systems.
Inquiry Role of batteries and fuel cells in achieving Net Zero
Professor Nigel Brandon Dean of the Faculty of Engineering at Imperial College London
Professor Mauro Pasta Associate Professor of Materials at University of Oxford
Professor Pam Thomas CEO at Faraday Institution and Pro Vice Chancellor for Research at University of Warwick
Mr Amer Gaffar Director of Manchester Fuel Cell Innovation Centre at Manchester Metropolitan University
Possible questions
What contribution are battery and fuel cell technologies currently making towards decarbonization in the UK?
What advances do we expect to see in battery and fuel cell technologies and over what timeframes?
How quickly can UK battery and fuel cell manufacture be scaled up to meet electrification demands?
What are the challenges facing technological innovation and deployment in heavy transport?
Are there any sectors where battery and fuel cell technologies are not currently used but could contribute to decarbonisation?
What are the life cycle environmental impacts of batteries and fuel cells?
Parliament TV video of the meeting
This is part one of a three part enquiry.
Part two can be found here and part three can be found here.
Fuel Cell Cars in a Microgrid for Synergies Between Hydrogen and Electricity Networks
Nov 2016
Publication
Fuel cell electric vehicles convert chemical energy of hydrogen into electricity to power their motor. Since cars are used for transport only during a small part of the time energy stored in the on-board hydrogen tanks of fuel cell vehicles can be used to provide power when cars are parked. In this paper we present a community microgrid with photovoltaic systems wind turbines and fuel cell electric vehicles that are used to provide vehicle-to-grid power when renewable power generation is scarce. Excess renewable power generation is used to produce hydrogen which is stored in a refilling station. A central control system is designed to operate the system in such a way that the operational costs are minimized. To this end a hybrid model for the system is derived in which both the characteristics of the fuel cell vehicles and their traveling schedules are considered. The operational costs of the system are formulated considering the presence of uncertainty in the prediction of the load and renewable energy generation. A robust minmax model predictive control scheme is developed and finally a case study illustrates the performance of the designed system.
Experimental Investigation of the Effects of Simultaneous Hydrogen and Nitrogen Addition on the Emissions and Combustion of a Diesel Engine
Jan 2014
Publication
Overcoming diesel engine emissions trade-off effects especially NOx and Bosch smoke number (BSN) requires investigation of novel systems which can potentially serve the automobile industry towards further emissions reduction. Enrichment of the intake charge with H2 þ N2 containing gas mixture obtained from diesel fuel reforming system can lead to new generation low polluting diesel engines. This paper investigates the effect of simultaneous H2 þ N2 intake charge enrichment on the emissions and combustion of a compression ignition engine. Bottled H2 þ N2 was simultaneously admitted into the intake pipe of the engine in 4% steps starting from 4% (2% H2 þ 2% N2) up to 16% (v/v). The results showed that under specific operating conditions H2 þ N2 enrichment can offer simultaneous NOx BSN and CO emissions reduction. Apart from regulated emissions nitrogen exhaust components were measured. Marginal N2O and zero NH3 emissions were obtained. NO/NO2 ratio increases when speed or load increases. Under low speed low load operation the oxidation of NO is enhanced by the addition of H2 þ N2 mixture. Finally admission of H2 þ N2 has a detrimental effect on fuel consumption
Combined Cooling and Power Management Strategy for a Standalone House Using Hydrogen and Solar Energy
May 2021
Publication
Tropical climate is characterized by hot temperatures throughout the year. In areas subject to this climate air conditioning represents an important share of total energy consumption. In some tropical islands there is no electric grid; in these cases electricity is often provided by diesel generators. In this study in order to decarbonize electricity and cooling production and to improve autonomy in a standalone application a microgrid producing combined cooling and electrical power was proposed. The presented system was composed of photovoltaic panels a battery an electrolyzer a hydrogen tank a fuel cell power converters a heat pump electrical loads and an adsorption cooling system. Electricity production and storage were provided by photovoltaic panels and a hydrogen storage system respectively while cooling production and storage were achieved using a heat pump and an adsorption cooling system respectively. The standalone application presented was a single house located in Tahiti French Polynesia. In this paper the system as a whole is presented. Then the interaction between each element is described and a model of the system is presented. Thirdly the energy and power management required in order to meet electrical and thermal needs are presented. Then the results of the control strategy are presented. The results showed that the adsorption cooling system provided 53% of the cooling demand. The use of the adsorption cooling system reduced the needed photovoltaic panel area the use of the electrolyzer and the use of the fuel cell by more than 60% and reduced energy losses by 7% (compared to a classic heat pump) for air conditioning.
Gas Transition: Renewable Hydrogen’s Future in Eastern Australia’s Energy Networks
Jul 2021
Publication
The energy transition for a net-zero future will require deep decarbonisation that hydrogen is uniquely positioned to facilitate. This technoeconomic study considers renewable hydrogen production transmission and storage for energy networks using the National Electricity Market (NEM) region of Eastern Australia as a case study. Plausible growth projections are developed to meet domestic demands for gas out to 2040 based on industry commitments and scalable technology deployment. Analysis using the discounted cash flow technique is performed to determine possible levelised cost figures for key processes out to 2050. Variables include geographic limitations growth rates and capacity factors to minimise abatement costs compared to business-as-usual natural gas forecasts. The study provides an optimistic outlook considering renewable power-to-X opportunities for blending replacement and gas-to-power to show viable pathways for the gas transition to green hydrogen. Blending is achievable with modest (3%) green premiums this decade and substitution for natural gas combustion in the long-term is likely to represent an abatement cost of AUD 18/tCO2-e including transmission and storage.
Lessons Learned from Australian Infrastructure Upgrades
Feb 2020
Publication
This report fulfils Deliverable Five for Research Project 2.1-01 of the Future Fuels CRC. The aims of this project Crystallising lessons learned from major infrastructure upgrades are to provide a report on lessons learned from earlier infrastructure upgrades and fuel transitions and identify tools that can be used to develop consistent messaging around the proposed transition to hydrogen and/or other low-carbon fuels. In both the report and the toolkit there are recommendations on how to apply lessons learned and shape messaging throughout the value chain based on prior infrastructure upgrades.
This report presents three Australian case studies that that are relevant to the development of future fuels: the transition from town gas to natural gas the use of ethanol and LPG as motor fuels and the development of coal seam gas resources. Drawing on published information each case study provides an account of the issues that arose during the upgrade or transition and of the approaches through which industry and government stakeholders managed these issues. From these accounts lessons are identified that can guide stakeholder engagement in future infrastructure upgrades and fuel transitions. The findings from the case studies and academic literature have been used to develop an accompanying draft toolkit for use by FFCRC stakeholders.
The report also distils applicable lessons and frameworks from academic literature about stakeholder analysis megaprojects and the social acceptance of industries and technologies. This report is meant to be used in conjunction with a companion toolkit that provides a framework for making coordinated decisions across the fuel value chain.
You can read the full report on the Future Fuels CRC website here
This report presents three Australian case studies that that are relevant to the development of future fuels: the transition from town gas to natural gas the use of ethanol and LPG as motor fuels and the development of coal seam gas resources. Drawing on published information each case study provides an account of the issues that arose during the upgrade or transition and of the approaches through which industry and government stakeholders managed these issues. From these accounts lessons are identified that can guide stakeholder engagement in future infrastructure upgrades and fuel transitions. The findings from the case studies and academic literature have been used to develop an accompanying draft toolkit for use by FFCRC stakeholders.
The report also distils applicable lessons and frameworks from academic literature about stakeholder analysis megaprojects and the social acceptance of industries and technologies. This report is meant to be used in conjunction with a companion toolkit that provides a framework for making coordinated decisions across the fuel value chain.
You can read the full report on the Future Fuels CRC website here
Precooling Temperature Relaxation Technology in Hydrogen Refueling for Fuel-Cell Vehicles
Aug 2021
Publication
The dissemination of fuel-cell vehicles requires cost reduction of hydrogen refueling stations. The temperature of the supplied hydrogen has currently been cooled to approximately 40 C. This has led to larger equipment and increased electric power consumption. This study achieves a relaxation of the precooling temperature to the 20 C level while maintaining the refueling time. (1) Adoption of an MC formula that can flexibly change the refueling rate according to the precooling temperature. (2) Measurement of thermal capacity of refueling system parts and re-evaluation. Selection from multiple refueling control maps according to the dispenser design (Mathison et al. 2015). (3) Calculation of the effective thermal capacity and reselection of the map in real time when the line is cooled from refueling of the previous vehicle (Mathison and Handa 2015). (4) Addition of maps in which the minimum assumed pressures are 10 and 15 MPa. The new method is named MC Multi Map
The Role of Synthetic Fuels for a Carbon Neutral Economy
Apr 2017
Publication
Fossil fuels depletion and increasing environmental impacts arising from their use call for seeking growing supplies from renewable and nuclear primary energy sources. However it is necessary to simultaneously attend to both the electrical power needs and the specificities of the transport and industrial sector requirements. A major question posed by the shift away from traditional fossil fuels towards renewable energy sources lies in matching the power demand with the daily and seasonal oscillation and the intermittency of these natural energy fluxes. Huge energy storage requirements become necessary or otherwise the decline of the power factor of both the renewable and conventional generation would mean loss of resources. On the other hand liquid and gaseous fuels for which there is vast storage and distribution capacity available appear essential to supply the transport sector for a very long time ahead besides their domestic and industrial roles. Within this context the present assessment suggests that proven technologies and sound tested principles are available to develop an integrated energy system relying on synthetic fuels. These would incorporate carbon capture and utilization in a closed carbon cycle progressively relying mostly on solar and/or nuclear primary sources providing both electric power and gaseous/liquid hydrocarbon fuels having ample storage capacity and able to timely satisfy all forms of energy demand. The principles and means are already available to develop a carbon-neutral synthetic fuel economy.
Electrification Opportunities in the Medium- and Heavy-Duty Vehicle Segment in Canada
Jun 2021
Publication
The medium- and heavy-duty (MD/HD) vehicle sector is a large emitter of greenhouse gases. It will require drastic emissions reductions to realize a net-zero carbon future. This study conducts fourteen short feasibility investigations in the Canadian context to evaluate the merits of battery electric or hydrogen fuel cell alternatives to conventional city buses inter-city buses school buses courier vehicles (step vans) refuse trucks long-haul trucks and construction vehicles. These “clean transportation alternatives” were evaluated for practicality economics and emission reductions in comparison to their conventional counterparts. Conclusions were drawn on which use cases would be best suited for accelerating the transformation of the MD/HD sector.
The NederDrone: A Hybrid Lift, Hybrid Energy Hydrogen UAV
Mar 2021
Publication
Many Unmanned Air Vehicle (UAV) applications require vertical take-off and landing and very long-range capabilities. Fixed-wing aircraft need long runways to land and electric energy is still a bottleneck for helicopters which are not range efficient. In this paper we introduce the NederDrone a hybrid lift hybrid energy hydrogen-powered UAV that can perform vertical take-off and landings using its 12 propellers while flying efficiently in forward flight thanks to its fixed wings. The energy is supplied from a combination of hydrogen-driven Polymer Electrolyte Membrane fuel-cells for endurance and lithium batteries for high-power situations. The hydrogen is stored in a pressurized cylinder around which the UAV is optimized. This work analyses the selection of the concept the implemented safety elements the electronics and flight control and shows flight data including a 3h38 flight at sea while starting and landing from a small moving ship.
The Dawn of Hydrogen - Fuel of the Future
Aug 2021
Publication
This is a time of enormous change for the gas industry as the UK and the world at large attempts to meet the challenges of decarbonisation in the face of climate change. Hydrogen is expected to play a vital role in achieving the government’s commitment of eliminating the UK’s contribution to climate change by 2050 with the industry creating up to 8000 jobs by 2030 and potentially unlocking up to 100000 jobs by the middle of the century. But despite the UK government’s huge ambitions hydrogen is just one piece of the puzzle and it will be necessary to seek solutions that bring the whole energy system together – including not just heat for buildings but hard-to decarbonise areas such as manufacturing road transport aviation and shipping. Here we bring you just a taste of some of the amazing work taking place across the energy sector to understand this fuel more clearly to comprehend its strengths and limitations and to integrate it into our current energy infrastructure. We hope you enjoy this special publication.
Assessment of Full Life-cycle Air Emissions of Alternative Shipping Fuels
Oct 2017
Publication
There is a need for alternative fuels in the shipping sector for two main motivations: to deliver a reduction in local pollutants and comply with existing regulation; and to mitigate climate change and cut greenhouse gas emissions. However any alternative fuel must meet a range of criteria to become a viable option. Key among them is the requirement that it can deliver emissions reductions over its full life-cycle. For a set of fuels comprising both conventional and alternative fuels together with associated production pathways this paper presents a life-cycle assessment with respect to six emissions species: local pollutants sulphur oxides nitrogen oxides and particulate matter; and greenhouse gases carbon dioxide methane and nitrous oxide. While the analysis demonstrates that no widely available fuel exists currently to deliver on both motivations some alternative fuel options have the potential if key barriers can be overcome. Hydrogen or other synthetic fuels rely on decarbonisation of both energy input to production and other feedstock materials to deliver reductions in greenhouse gas emissions. Similarly bio-derived fuels can be an abatement option but only if it can be ensured that land-use change whilst growing biomass does not impact wider potential savings and the sector is able to compete sufficiently for their use. These examples show that crucial barriers are located upstream in the respective fuel life-cycle and that the way to overcome them may reside beyond the scope of the shipping sector alone.
Zero-Emission Pathway for the Global Chemical and Petrochemical Sector
Jun 2021
Publication
The chemical and petrochemical sector relies on fossil fuels and feedstocks and is a major source of carbon dioxide (CO2 ) emissions. The techno-economic potential of 20 decarbonisation options is assessed. While previous analyses focus on the production processes this analysis covers the full product life cycle CO2 emissions. The analysis elaborates the carbon accounting complexity that results from the non-energy use of fossil fuels and highlights the importance of strategies that consider the carbon stored in synthetic organic products—an aspect that warrants more attention in long-term energy scenarios and strategies. Average mitigation costs in the sector would amount to 64 United States dollars (USD) per tonne of CO2 for full decarbonisation in 2050. The rapidly declining renewables cost is one main cause for this low-cost estimate. Renewable energy supply solutions in combination with electrification account for 40% of total emissions reductions. Annual biomass use grows to 1.3 gigatonnes; green hydrogen electrolyser capacity grows to 2435 gigawatts and recycling rates increase six-fold while product demand is reduced by a third compared to the reference case. CO2 capture storage and use equals 30% of the total decarbonisation effort (1.49 gigatonnes per year) where about one-third of the captured CO2 is of biogenic origin. Circular economy concepts including recycling account for 16% while energy efficiency accounts for 12% of the decarbonisation needed. Achieving full decarbonisation in this sector will increase energy and feedstock costs by more than 35%. The analysis shows the importance of renewables-based solutions accounting for more than half of the total emissions reduction potential which was higher than previous estimates.
Testing Programme for Hydrogen Tolerance Tests of Domestic and Commercial Natural Gas Appliances
Jan 2021
Publication
The THyGA project (‘Testing Hydrogen admixture for Gas Applications’) focusses on technical aspects and the regulatory framework concerning the potential operation of domestic and commercial end-user appliances with hydrogen / natural gas blends.<br/>The core of the project is a broad experimental campaign with the aim to conduct up to 100 hydrogen tolerance tests. In addition the technical status quo and present knowledge about hydrogen impact on domestic and commercial appliances are assessed and potential future developments of rules and standards are discussed. Also mitigation strategies for coping with high levels of hydrogen admixture will be developed. By this broad approach the project aims at investigating which levels of hydrogen blending impact the various appliance technologies and to which extent in order to identify the regime in which a safe efficient and low-polluting operation is possible.<br/>The series of public reports by the THyGA project starts with several publications from work package 2 which sets the basis for the upcoming results and discussion of the experimental campaign as well as mitigation and standardisation topics.<br/>This report D2.5 completes the series of public reports from work package 2. It explains the steps of development of the test programme for gas-fired appliance tests with hydrogen admixture and especially describes the exchange between the THyGA partners and the external stakeholders.<br/>The report also explains the process of acquisition of appliances to test and method of selecting appliances.
Decarbonization in Shipping Industry: A Review of Research, Technology Development, and Innovation Proposals
Apr 2021
Publication
This review paper examines the possible pathways and possible technologies available that will help the shipping sector achieve the International Maritime Organization’s (IMO) deep decarbonization targets by 2050. There has been increased interest from important stakeholders regarding deep decarbonization evidenced by market surveys conducted by Shell and Deloitte. However deep decarbonization will require financial incentives and policies at an international and regional level given the maritime sector’s ~3% contribution to green house gas (GHG) emissions. The review paper based on research articles and grey literature discusses technoeconomic problems and/or benefits for technologies that will help the shipping sector achieve the IMO’s targets. The review presents a discussion on the recent literature regarding alternative fuels (nuclear hydrogen ammonia methanol) renewable energy sources (biofuels wind solar) the maturity of technologies (fuel cells internal combustion engines) as well as technical and operational strategies to reduce fuel consumption for new and existing ships (slow steaming cleaning and coating waste heat recovery hull and propeller design). The IMO’s 2050 targets will be achieved via radical technology shift together with the aid of social pressure financial incentives regulatory and legislative reforms at the local regional and international level.
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