Tom Tanneberger, Johannes Mundstock, Christoph Rex, Sebastian Rösch, Christian Oliver Paschereit
{"title":"Development of a Hydrogen Micro Gas Turbine Combustor: Atmospheric Pressure Testing","authors":"Tom Tanneberger, Johannes Mundstock, Christoph Rex, Sebastian Rösch, Christian Oliver Paschereit","doi":"10.1115/1.4063708","DOIUrl":null,"url":null,"abstract":"Abstract In the H2mGT project, funded by the German BMWK, a micro gas turbine (mGT) burner with 100% hydrogen firing is developed and validated. The project is a collaboration between TUB and the manufacturer Euro-K GmbH. It consists of three phases: 1. Atmospheric pressure tests with optical access; 2. Atmospheric pressure tests with secondary air injection; 3. Validation of the burner in the mGT. This paper will present the results of Phase 1. The hydrogen burner is based on a swirl-stabilized burner of TUB. The burner design features multiple geometrical parameters to enable the optimization towards low NOx emissions. Therefore, a variable swirl intensity, additional axial momentum of air in the mixing tube, a movable center-body and different fuel injection locations are implemented. Phase 1 investigates the parameter space in terms of flame stability, operational range and parameter impact on flame shape and emissions. It is found that the flame can be operated over a large range of equivalence ratios and preheating temperatures up to 500°C for many parameter settings. However, at some geometries flashback into the mixing tube is triggered. As expected, the NOx emissions are mainly influenced by the equivalence ratio, the fuel distribution, and the swirl intensity. Single digit emissions are reached up to an equivalence ratio of 0.4 at atmospheric pressure conditions. Furthermore, the burner can be operated at 100% natural gas or 100% hydrogen without any geometry changes without a significant change in NOx emissions.","PeriodicalId":15685,"journal":{"name":"Journal of Engineering for Gas Turbines and Power-transactions of The Asme","volume":"40 1","pages":"0"},"PeriodicalIF":1.4000,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Engineering for Gas Turbines and Power-transactions of The Asme","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/1.4063708","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract In the H2mGT project, funded by the German BMWK, a micro gas turbine (mGT) burner with 100% hydrogen firing is developed and validated. The project is a collaboration between TUB and the manufacturer Euro-K GmbH. It consists of three phases: 1. Atmospheric pressure tests with optical access; 2. Atmospheric pressure tests with secondary air injection; 3. Validation of the burner in the mGT. This paper will present the results of Phase 1. The hydrogen burner is based on a swirl-stabilized burner of TUB. The burner design features multiple geometrical parameters to enable the optimization towards low NOx emissions. Therefore, a variable swirl intensity, additional axial momentum of air in the mixing tube, a movable center-body and different fuel injection locations are implemented. Phase 1 investigates the parameter space in terms of flame stability, operational range and parameter impact on flame shape and emissions. It is found that the flame can be operated over a large range of equivalence ratios and preheating temperatures up to 500°C for many parameter settings. However, at some geometries flashback into the mixing tube is triggered. As expected, the NOx emissions are mainly influenced by the equivalence ratio, the fuel distribution, and the swirl intensity. Single digit emissions are reached up to an equivalence ratio of 0.4 at atmospheric pressure conditions. Furthermore, the burner can be operated at 100% natural gas or 100% hydrogen without any geometry changes without a significant change in NOx emissions.
期刊介绍:
The ASME Journal of Engineering for Gas Turbines and Power publishes archival-quality papers in the areas of gas and steam turbine technology, nuclear engineering, internal combustion engines, and fossil power generation. It covers a broad spectrum of practical topics of interest to industry. Subject areas covered include: thermodynamics; fluid mechanics; heat transfer; and modeling; propulsion and power generation components and systems; combustion, fuels, and emissions; nuclear reactor systems and components; thermal hydraulics; heat exchangers; nuclear fuel technology and waste management; I. C. engines for marine, rail, and power generation; steam and hydro power generation; advanced cycles for fossil energy generation; pollution control and environmental effects.