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Development ofa Hydrogen-Fueled Micro Gas Turbine with a Lean Premixed Combustor

具有贫化预混燃烧室的氢燃料微型燃气轮机的开发

基本信息

批准号：
10555069
负责人：
YUASA Saburo
金额：
$ 6.59万
依托单位：
TOKYO METROPOLITAN INSTITUTE OF TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10555069/
关键词：
Hydrogen Gas Turbine Rich Premixed Flame Lean Premixed Combustor Hydrogen Storage Alloy 過濃予混合火炎低NOx

项目摘要

The final purpose of this project is to develop a hydrogen-fueled micro gas turbine with a lean premixed combustor using a high-temperature metal hydride feed system. During the period of this project, 1998-2001, the main results obtained are as follows:(1) Flash-back of a hydrogen combustor using lean premixed flames occurred frequently at low equivalence ratios, and at higher equivalence ratios combustion driven oscillation of the hydrogen combustor occurred. To develop a hydrogen combustor with extremely low Nox emissions, the two-staged combustion, using a rich premixed flame followed by a lean well-stirred mixing and combustion with secondary air, was theoretically shown to be a suitable technique.(2) The high-temperature hydrogen storage alloy Mg2Ni has sufficient thermo-chemical properties concerning hydrogen discharge rate, thermal conductivity and hydrogen storage ability. The gas turbine system using an Mg2Ni hydride feed system operates with a practical level performance3) A prototype combustor using the two-staged combustion was built and a hydrogen feed system with Mg2Ni was developed. Since the combustion concept of a lean premixed combustor was forced to change by the result 1 and hydrogen was very easy to leak from the hydride reservoir at high temperature and pressure conditions, we spent a long term to cope the problems. We continue to develop a two-staged low Nox combustor and to construct a hydrogen-fueled micro gas turbine system using a high-temperature metal hydride feed apparatus.

本计画的最终目的是发展一种以高温金属氢化物为燃料的微型燃气涡轮机，其燃烧室为贫油预混燃烧室。在1998-2001年的研究期间，取得了如下主要成果：（1）在低当量比条件下，贫油预混火焰氢气燃烧室频繁发生回火，在高当量比条件下，氢气燃烧室发生燃烧驱动振荡。为了开发具有极低NOx排放的氢燃烧器，两阶段燃烧，使用富预混火焰，然后是贫充分搅拌的混合和燃烧与二次空气，理论上被证明是一种合适的技术。(2)高温贮氢合金Mg 2Ni在放氢速率、热导率和贮氢能力方面具有足够的热化学性能。3）建立了两级燃烧的燃烧室原型，并开发了一套Mg_2Ni加氢系统。由于结果1迫使稀薄预混燃烧室的燃烧概念发生变化，并且在高温高压条件下氢气很容易从氢化物储存器中泄漏，因此我们花了很长时间来科普这些问题。我们继续开发一个两级低氮氧化物燃烧室和构建一个氢燃料的微型燃气涡轮机系统使用高温金属氢化物进料装置。