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Impact of ammonia as a fuel / co-fuel on NOx emissions

Ammonia is a hydrogen-based, carbon-free energy carrier. It has good energy density (22.5 MJ/kg) and can be liquefied (about 10 bar at 298 K). With the increasing demand to lower the CO2 emissions worldwide, pure ammonia combustion or co-combustion with a conventional fuel is an alternative solution in turbines, gas engines, power plants, furnaces, and cement kilns. The major challenges with the use of ammonia as a fuel are lowered heat flux and increased NOx emissions. These parameters were analyzed in Linde’s lab-scale tests with pure ammonia as well as mixtures of ammonia and natural gas. Tests were conducted with…

Article

Ammonia combustion engines: latest research

The journey from the laboratory bench to the shop floor continues apace in 2021, as researchers deepen their understanding of ammonia combustion within engines. The team at Université d’Orléans has published several pieces of research already this year, with interesting results on operating limits, spray characteristics and flame propagation.

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Production and utilization of green ammonia: KIER’s current status and future plans

Green ammonia, a carbon-free chemical, has been drawing much attention as a hydrogen carrier and carbon-neutral fuel for trading green hydrogen and building a carbon-neutral society, respectively, because it has higher volumetric hydrogen content and energy density than liquid hydrogen. And the infrastructure for storing and transporting ammonia is already in place. To implement green ammonia into the current energy systems, technologies on low-cost green ammonia production, decomposition, and utilization are essential. This presentation will show the KIER’s current status and perspective on the development of low-cost green ammonia production and utilization.

Article

The Ammonia Wrap: no major obstacles for NoGAPS success and more

Welcome to the Ammonia Wrap: a summary of all the latest announcements, news items and publications about ammonia energy. This week: latest report from NoGAPS, Viking Energy project takes another step, more collaborations for Yara, thyssenkrupp to invest in cracking R&D, investment in clean hydrogen technology in the USA, world-first visualisation of ammonia combustion in a spark-ignition engine and our numbers of the week.

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Cardiff-KAUST-Tohoku Young Researcher Workshop on Ammonia Energy

Organised by a panel of young researchers — and for young researchers — Cardiff University, KAUST and Tohoku University hosted a virtual workshop on ammonia energy. Each group showed their most recent research developments through the two-day event, attracting 50+ participants from the three groups alone. The event included research introductions from the research leaders of each group as well as quizzes, discussion rooms, prizes. Each group selected 6 early career presenters to feature their latest work in the topics of chemistry and microflow reactors, laminar and turbulent flames and applications. Taking advantage of the discussion sessions, this workshop hopes to promote large scale international collaboration and a researcher exchange programme in ammonia energy.

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A Deep Dive into SIP “Energy Carriers” Ammonia Combustion Research (second half)

From 2014 to 2018 Bunro Shiozawa served as Deputy Program Director of the SIP “Energy Carriers” initiative in Japan. Over the last year he has published a ten-part series of articles that describe and reflect on the research supported by the initiative. Part 4 covers ammonia combustion technologies. The first half of the article was posted on September 23, 2020, in Shiozawa's English translation. The second half follows.

Article

A Deep Dive into SIP “Energy Carriers” Ammonia Combustion Research

From 2014 to 2018 Bunro Shiozawa served as Deputy Program Director of the SIP “Energy Carriers” initiative in Japan. Over the last year he has published a ten-part series of articles that describe and reflect on the research supported by the initiative. Part 4 covers ammonia combustion technologies. The first half of the article follows, in Shiozawa's English translation. The second half will be posted in the near future.

Article

Ammonia, Hydrogen P2X2P Demonstrations Slated for Europe

At this early point in the energy transition, many groups are formulating big-picture concepts for the design of a sustainable energy economy, and many more are developing discrete technologies that will be relevant as the transition advances. The multi-stakeholder H2020 European project known as “FLEXibilize combined cycle power plant through Power-to-X solutions using non-CONventional Fuels” (FLEXnCONFU) is coming from a different direction. Its premise is that construction of a bridge to the future should start now, and should be anchored in aspects of the current energy system that are likely to endure over the long-term.