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Vt 2002: Företaget vill ej ha fulltext på webbenAir shut-off to AEV-burner for GT10C: preliminary study and design
2002 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

GT10C is an industrial turbine, which is used for power generation and mechanical drive. Present design works well down to loads of seventy per- cent in respect to emissions, but at lower loads there will be high amounts of either oxides of nitrogen or carbon monoxide and unburnt hydrocarbons. Due to environmental issues there is a wish to minimize these pollutants. A possible solution to the problem is staging the burners of the turbine, which means that the fuel supply for one or more burners is turned off in order to maintain the flame temperature. At the present situation it is feasible to turn off the burners, but this will result in cold air flowing through these and into the turbine stages causing a thermal load. In consequence it might be desired to cut the air off as well. A preliminary study compares the flame temperature and pressure drop between idling speed and full load for constant number of burners, staging of fuel only and staging by both fuel and air. Based on the results of the preliminary study the search of an idea shutting off the air to a turned off burner is initiated. Requirements on the design of such a concept are listed and used while evaluating the initial ideas according to methods of engineering design. Three ideas to stop the airflow are chosen for further investigation of which detail design is pursued for one of them.

Place, publisher, year, edition, pages
2002.
Keyword [en]
Technology, mechanical engineering, AEV-burners, turbines, GT10C, product development, staging
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-54645ISRN: LTU-EX--02/067--SELocal ID: b94f78e8-2c30-45be-b0bf-b8292548a8acOAI: oai:DiVA.org:ltu-54645DiVA: diva2:1028027
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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