Hydrogen Blending
Accelerating to Net Zero with Hydrogen Blending Standards Development in the UK, Canada and the US - Part 1
Mar 2021
Publication
"Hydrogen is expected to play a critical role in the move to a net-zero economy. However large-scale deployment is still in its infancy and there is still much to be done before we can blend hydrogen in large volumes into gas networks and ramp up the production that is required to meet demands of the energy transport and industry sectors. KTN Global Alliance will host two webinars to explore these challenges and opportunities in hydrogen blending on t Read More
Possible Pathways toward Carbon Neutrality in Thailand’s Electricity Sector by 2050 through the Introduction of H2 Blending in Natural Gas and Solar PV with BESS
May 2022
Publication
To avoid the potential adverse impacts of climate change from global warming it is suggested that the target of net zero emissions should be reached by this mid-century. Thailand is aiming to achieve carbon neutrality by 2050. Since electricity generation is one of the largest producers of carbon dioxide emission the associated emissions must be greatly reduced to achieve the targets mentioned above. Thus new generation expansion plans must be well de Read More
EU Hydrogen Vision: Regulatory Opportunities and Challenges
Sep 2020
Publication
This Insight provides an overview of the recent EU Commission Hydrogen Strategy Energy System Integration Strategy and Industrial Strategy focusing on regulatory issues impacting hydrogen. It looks at the proposed classification and preferences for different sources of hydrogen financial and regulatory support for development of hydrogen supply demand and infrastructure as well as potential regulation of hydrogen markets. Whilst the Hydrogen Read More
A Preliminary Assessment of the Potential of Low Percentage Green Hydrogen Blending in the Italian Natural Gas Network
Oct 2020
Publication
The growing rate of electricity generation from renewables is leading to new operational and management issues on the power grid because the electricity generated exceeds local requirements and the transportation or storage capacities are inadequate. An interesting option that is under investigation by several years is the opportunity to use the renewable electricity surplus to power electrolyzers that split water into its component parts with the hy Read More
Blended Hydrogen: The UK Public’s Perspective
Nov 2019
Publication
Hydrogen is increasingly being positioned as an important component of the UK’s Net Zero ambitions and commitments. In particular hydrogen could be an appropriate way to decarbonise the heat produced for domestic and industrial buildings. It is possible that hydrogen could replace natural gas in the UK gas network achieving key carbon emissions reduction targets while enabling homes to be heated to a similar level and standard as they currently are Read More
Thermodynamic and Technical Issues of Hydrogen and Methane-Hydrogen Mixtures Pipeline Transmission
Feb 2019
Publication
The use of hydrogen as a non-emission energy carrier is important for the innovative development of the power-generation industry. Transmission pipelines are the most efficient and economic method of transporting large quantities of hydrogen in a number of variants. A comprehensive hydraulic analysis of hydrogen transmission at a mass flow rate of 0.3 to 3.0 kg/s (volume flow rates from 12000 Nm3/h to 120000 Nm3/h) was performed. The metho Read More
Mitigation of CO Poisoning Hazard in Malfunctioning Gas Appliances Through Use of Hydrogen Blended Gas
Sep 2021
Publication
The HyDeploy project [1] has undertaken an extensive research programme to assess safety and performance of the existing UK gas appliances population fueled with natural gas / hydrogen admixtures (hydrogen blended gas). The first stage of this work [2] focused on well maintained and normally functioning appliances. This work demonstrated that unmodified gas appliances can operate safely with hydrogen blended gas (up to 20 vol% hydrogen) and t Read More
HyDeploy: Demonstrating Non-destructive Carbon Savings Through Hydrogen Blending
Aug 2021
Publication
The project has successfully developed the safety case and delivered a hydrogen blend via the gas network into customers’ homes. The demonstration of safety for the specific network was based on robust evidence and clear operational procedures. Alongside the enabling safety case the HyDeploy project has demonstrated the first steps of hydrogen deployment are safe technically feasible and non-disruptive both for the network and domestic users.Th Read More
Review of Release Behavior of Hydrogen & Natural Gas Blends from Pipelines
Aug 2021
Publication
Hydrogen can be used to reduce carbon emissions by blending into other gaseous energy carriers such as natural gas. However hydrogen blending into natural gas has important implications for safety which need to be evaluated. Hydrogen has different physical properties than natural gas and these properties affect safety evaluations concerning a leak of the blended gas. The intent of this report is to begin to investigate the safety implications Read More
Experimental Study of Biogas-Hydrogen Mixtures Combustion in Conventional Natural Gas Systems
Jul 2021
Publication
Biogas is a renewable gas with low heat energy which makes it extremely difficult to use as fuel in conventional natural gas equipment. Nonetheless the use of hydrogen as a biogas additive has proven to have a beneficial effect on flame stability and combustion behavior. This study evaluates the biogas–hydrogen combustion in a conventional natural gas burner able to work up to 100 kW. Tests were performed for three different compositions of biogas: BG7 Read More
Analyzing the Competitiveness of Low-carbon Drive-technologies in Road-freight: A Total Cost of Ownership Analysis in Europe
Nov 2021
Publication
In light of the Paris Agreement road-freight represents a critically difficult-to-abate sector. In order to meet the ambitious European transport sector emissions reduction targets a rapid transition to zero-carbon road-freight is necessary. However limited policy assessments indicate where and how to appropriately intervene in this sector. To support policy-makers in accelerating the zero-carbon road-freight transition this paper examines the rel Read More
Hydrogen Blending and the Gas Commercial Framework - Report on Conclusions of NIA study
Sep 2020
Publication
Blending hydrogen into the gas grid could be an important stepping stone during the transition to a sustainable net zero system. In particular it may: provide a significant and reliable source of demand for hydrogen producers supporting the investment case for hydrogen; provide learnings and incremental change towards what could potentially become a 100% hydrogen grid; and immediately decarbonise a portion of the gas flowing through the grid. Technic Read More
The Effect of Hydrogen Containing Fuel Blends Upon Flashback in Swirl Burners
Feb 2011
Publication
Lean premixed swirl combustion is widely used in gas turbines and many other combustion Processes due to the benefits of good flame stability and blow off limits coupled with low NOx emissions. Although flashback is not generally a problem with natural gas combustion there are some reports of flashback damage with existing gas turbines whilst hydrogen enriched fuel blends especially those derived from gasification of coal and/or biomass/industrial Read More
Effect of Hydrogen-blended Natural Gas on Combustion Stability and Emission of Water Heater Burner
Jun 2022
Publication
To study the effect of hydrogen-blended natural gas on the combustion stability and emission of domestic gas water heater a test system is built in this paper taking a unit of the partial premixed burner commonly used in water heaters as the object. Under the heat load of 0.7~2.3kW the changes of flame shape burner temperature and pollutant emission of natural gas with hydrogen volume ratio of 0~40% are studied with independent control of primary Read More
The Direct Effect of Enriching the Gaseous Combustible with 23% Hydrogen in Condensing Boilers’ Operation
Dec 2022
Publication
Following the international trend of using hydrogen as combustible in many industry branches this paper investigates the impact of mixing methane gas with 23% hydrogen (G222) on condensing boilers’ operation. After modeling and testing several boilers with heat exchange surface different designs the authors gathered enough information to introduce a new concept namely High-Performance Condensing Boiler (HPCB). All the boilers that fit into this appr Read More
Enabling Hydrogen Blending From Industrial Clusters
Nov 2022
Publication
This study has been commissioned by the gas transporters as part of the Gas Goes Green (GGG)2 work programme to develop and report a ‘gas transporter view’ on how to facilitate hydrogen blending from industrial clusters which are likely to form the initial source for hydrogen blending in the gas network. This view has been developed through engagement carried out with industrial clusters and other stakeholders as well as drawing on learnings from a p Read More
Gas Goes Green: Hydrogen Blending Capacity Maps
Jan 2022
Publication
Britain's gas networks are ready for hydrogen blending. Learn more about Britain's hydrogen blending capacity in the National Transmission System and Distribution Networks.
Next for Net Zero Podcast: Unlock & Understand, Achieving a More Sustainable Future
Sep 2022
Publication
This episode examines how we are tackling a sustainable future – with Net Zero hurtling towards us at great pace. We’re around a year on from the pledges made at COP26 the UK’s Green Recovery initiative is well under way and by next year Britain is aiming to blend up to 20 per cent hydrogen into its gas networks. So now is the time to continue to unlock new insight and understand further the realities of both the challenges and opportunities ahead Read More
Steady State Analysis of Gas Networks with Distributed Injection of Alternative Gas
Jun 2015
Publication
A steady state analysis method was developed for gas networks with distributed injection of alternative gas. A low pressure gas network was used to validate the method. Case studies were carried out with centralized and decentralized injection of hydrogen and upgraded biogas. Results show the impact of utilizing a diversity of gas supply sources on pressure distribution and gas quality in the network. It is shown that appropriate management of using a diver Read More
Impact of Hydrogen on Natural Gas Compositions to Meet Engine Gas Quality Requirements
Oct 2022
Publication
To meet the target of reducing greenhouse gas emissions hydrogen as a carbon-free fuel is expected to play a major role in future energy supplies. A challenge with hydrogen is its low density and volumetric energy value meaning that large tanks are needed to store and transport it. By injecting hydrogen into the natural gas network the transportation issue could be solved if the hydrogen–natural gas mixture satisfies the grid gas quality requiremen Read More
No more items...