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 Hayakawa^2
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. Although NOx concentration in the exhaust gas of ammonia combustion exceeded 500ppm, NOx removal equipment reduced NOx concentration below 10ppm. Over 30kW power generation is also achieved firing methane-ammonia with various ratio. Then the combustor was modified for the flame observation using the curved tube with window. The ammonia flame inside of the combustor was successfully observed during power generation.

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OTHER NH3 FUEL CONFERENCE PAPERS

2016: Combustion characteristics of ammonia/air flames for a model swirl burner and an actual gas turbine combustor
2015: Enhancement of reaction and stability of ammonia flames using hydrogen addition and swirling flow [PDF]
2015: Micro Gas Turbine Firing Ammonia [PDF]
2014: Micro Gas Turbine Operation with Kerosene and Ammonia

LINKS

Institute of Fluid Science, Tohoku University
National Institute of Advanced Industrial Science and Technology (AIST)
Learn more about the 2016 NH3 Fuel Conference