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Low-Carbon Fuels for Power Generation

The EPRI-GTI Low Carbon Resources Initiative (LCRI) has nine technical subcommittees.  The Power Generation subcommittee currently has 26 active members representing electric, gas and combined electric & gas utilities as well as two gas turbine Original Equipment Manufacturers (OEM).  Studies, testing and demonstration projects utilizing hydrogen and ammonia as alternate low-carbon energy carriers dominates member interests with hydrogen being most significant. Next steps will include scoping specific topics for “no-regret” studies and soliciting inputs for creating a five-year power generation roadmap.  Current position of the power generation company members:   Alternate Energy Carrier (AEC). Applied R&D on H2 and H2…

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Performance of Ammonia-Natural Gas Co-Fired Gas Turbine for Power Generation

Ammonia is paid special attention as renewable energy carrier [1-3], because it offers advantages in generation, transportation and utilization. Haber-Bosch method is already established as ammonia generation method; large amount of ammonia is already used as fertilizer and chemical raw material. Ammonia can be liquefied at room temperature. Its transport and storage system are already established. Ammonia is cheaper to transport than hydrogen. Ammonia can be used as carbon-free fuel in internal combustion engines as alternative to conventional hydrocarbon fuels. However, it has different combustion characteristics. For example, the nitrogen atom contained in the ammonia molecule, causes high NOx emission…

Paper

Methods for Low NOx Combustion in Ammonia / Natural Gas Dual Fuel Gas Turbine Combustor

Ammonia is a carbon-free fuel, so it has potential to reduce carbon dioxide emission from power plants when used as a fuel. However, combustion characteristics of ammonia are notably different from hydrocarbon fuels, especially regarding NOx emission [1]. The nitrogen atom of the ammonia molecule may cause high NOx emission. Therefore, special techniques to reduce NOx emission are essential for gas turbine combustors which burn ammonia and natural gas. The results of our previous study [2] showed the characteristics of NOx emission in single-stage combustion. In this study, the concept for low-emission combustion in two-stage combustion has been examined numerically…

Article

A Roadmap for Ammonia Fuel in Fujian Province

Researchers from Fujian Province presented their work at the 2016 NH3 Fuel Conference, and introduced the far-reaching plans of the Ammonia Fuel Synergy group at the College of Energy, Xiamen University, in China. Forest (Zhaolin) Wang's presentation, Ammonia as a Key to Meeting the Fuel Demand of China, contained valuable insight into the potential of ammonia fuel in China, and outlined the group's roadmaps for developing an ammonia-natural gas dual fueled car by 2018, and an ammonia-methanol dual fuel car by 2020.

Paper

Development of ammonia / natural gas dual fuel gas turbine combustor

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. Detailed exhaust gas compositions of the burner have been measured under atmospheric pressure and fuel lean conditions. As…