Tag Archives: Turbines

Combustion Emissions from NH3 Fuel Gas Turbine Power Generation Demonstrated

Osamu Kurata1*, Norihiko Iki1, Takahiro Inoue1, Takayuki Matsunuma1, Taku Tsujimura2, Hirohide Furutani2, Hideaki Kobayashi3, Akihiro Hayakawa3
[1] National Institute of Advanced Industrial Science and Technology (AIST); [2] Fukushima Renewable Energy Institute, AIST (FREA); and [3] Tohoku University, Japan

NH3 Fuel Conference, Minneapolis, November 1, 2017
AIChE Annual Meeting, Topical Conference: NH3 Energy+

ABSTRACT

To protect against global warming, a massive influx of renewable energy is expected. Although H2 is a renewable media, its storage and transportation in large quantity is difficult. NH3 fuel, however, is an H2 energy carrier and carbon-free fuel, and its storage and transportation technology is already established. Although NH3 fuel combustion was studied in the 1960s in the USA, the development of an NH3 fuel gas turbine had been abandoned because combustion efficiency was unacceptably low [1]. Recent demand for H2 energy carrier revives the usage of NH3 fuel, but no one has attempted an actual design setup for NH3 fuel gas turbine power generation. The National Institute of Advanced Industrial Science and Technology (AIST) in Japan collaborated with Tohoku University successfully performed NH3-kerosene gas turbine power generation in 2014, and NH3 fuel gas turbine power generation in 2015 [2]. Continue reading

The Role of “Green” Ammonia in Decarbonising Energy Systems: Practical Demonstration and Economic Considerations

Ian Wilkinson
Siemens, United Kingdom

NH3 Fuel Conference, Minneapolis, November 1, 2017
AIChE Annual Meeting, Topical Conference: NH3 Energy+

ABSTRACT

Ammonia has the potential to contribute significantly to the decarbonisation of energy systems, by offering a practical, carbon-free hydrogen storage and transportation vector as well as a green fuel in its own right. To better understand the prospects and challenges surrounding the use of ammonia in energy systems, Siemens is leading a collaborative project to build and test an ammonia-based energy storage system at the Rutherford Appleton Laboratory in the UK. Together with its project partners (the UK Science and Technology Facilities Council, the University of Oxford and the University of Cardiff), and supported by Innovate UK, Siemens will demonstrate the full energy cycle of renewable power converted into ammonia and then back into electricity for grid export. Continue reading

Carbon Free liquid fuel for tomorrow’s piston and turbine generators

Doug Barnett
Green Party of California, USA

NH3 Fuel Conference, Los Angeles, September 19, 2016

ABSTRACT

In the 1960s the US Army and University of California modified and flew military helicopter and fixed-wing turbine aircraft by burning pure ammonia. The plan was to generate NH3 from local air & water in remote locations, sparing little expense by modifying only the engine’s firebox and air intake. Continue reading

Power Generation and Flame Visualization of Micro Gas Turbine Firing Ammonia or Ammonia-Methane Mixture

Norihiko Iki1*, Osamu Kurata1, Takayuki Matsunuma1, Takahiro Inoue1, Taku Tsujimura1, Hirohide Furutani1, Hideaki Kobayashi2, Akihiro Hayakawa2
1Fukushima Renewable Energy Institute, AIST (FREA), Japan
2Institute of Fluid Science, Tohoku University, Japan

NH3 Fuel Conference, Los Angeles, September 19, 2016

ABSTRACT

A demonstration test with the aim to show the potential of ammonia-fired power plant is planned using a micro gas turbine. 50kW class turbine system firing kerosene is selected as a base model. A standard combustor is replaced to a prototype combustor which enables a bi-fuel supply of kerosene and ammonia gas. Diffusion combustion is employed to the prototype combustor due to its flame stability. 44kW power generation was achieved by 100% heat from ammonia gas. Continue reading

Combustion characteristics of ammonia/air flames for a model swirl burner and an actual gas turbine combustor

Akihiro Hayakawa*1, K.D. Kunkuma A. Somarathne1, Ekenechukwu C. Okafor1, Taku Kudo1, Osamu Kurata2, Norihiko Iki2, Hideaki Kobayashi1
1Institute of Fluid Science, Tohoku University, Japan
2National Institute of Advanced Industrial Science and Technology (AIST), Japan

NH3 Fuel Conference, Los Angeles, September 19, 2016

ABSTRACT

Ammonia is expected not only as hydrogen energy carrier but also as carbon free fuel. For an industrial use of ammonia combustor, ammonia flame stabilized on a swirl combustor should be clarified. However, in order to realize an ammonia-fueled combustor, there are some issues to be solved, such as a difficulty of flame stabilization and reductions of NOx and ammonia emission. In this study, stabilization and emission characteristics of ammonia / air flames stabilized by a model swirl burner are investigated. Continue reading

Development of ammonia / natural gas dual fuel gas turbine combustor

Shintaro Ito*1, Soichiro Kato1, Tsukasa Saito1, Toshiro Fujimori1, Hideaki Kobayashi2
1IHI Corporation, Japan
2Institute of Fluid Science, Tohoku University, Japan

NH3 Fuel Conference, Los Angeles, September 19, 2016

ABSTRACT

NH3 is a carbon-free fuel, so it has the potential to reduce CO2 emission from the power plant when used as a fuel. However, NH3 has combustion characteristics different from conventional hydrocarbon fuels. The N atom in the ammonia molecule causes high NOx emission through combustion reactions. To develop a gas-turbine combustor, which burns a combination of NH3 and natural gas with controlled emissions, combustion characteristics have been studied experimentally and numerically by using a swirl-burner, which is typically used in gas-turbines. Continue reading

NOx emission analysis and flame stabilization of ammonia-hydrogen-air premixed flames

Hadi Nozari1, Arif Karabeyoğlu1,2
1Koç University, Istanbul, Turkey
2Space Propulsion Group, Palo Alto CA, USA

NH3 Fuel Conference, Los Angeles, September 19, 2016

ABSTRACT

Based on its well-known merits, ammonia has been gaining special attention as a potential renewable energy carrier which can be replaced in power generation units. One of the major challenges with ammonia as a fuel is NOx emission, which has a complex underlying chemical kinetics. Continue reading

Micro Gas Turbine Operation with Kerosene and Ammonia

Norihiko Iki*, Osamu Kurata, Takayuki Matsunuma, Takahiro Inoue, Masato Suzuki, Taku Tsujimura and Hirohide Furutani
Fukushima Renewable Energy Institute (FREA), National Institute of Advanced Industrial Science and Technology (AIST)

11th Annual NH3 Fuel Conference, September 22, 2014 Continue reading

Numerical investigation of combustion characteristics of ammonia-air mixtures under high pressure lean conditions

Hadi Nozari* and Arif Karabeyoglu
Department of Mechanical Engineering, Koç University, Turkey

11th Annual NH3 Fuel Conference, September 23, 2014 Continue reading

Liquid Ammonia for Hydrogen Storage

Yoshitsugu Kojima, Institute for Advanced Materials Research, Hiroshima University
11th Annual NH3 Fuel Conference, September 22, 2014
Continue reading