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Performance Characteristics of a Micro-Turbine

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In the paper a design of a multi-stage micro-turbine with partial admission of all the stages is described in detail and the results of particular experimental investigations and numerical calculations are shown, followed by conclusions. The co-generative micro-power plant with the HFE7100 as a working medium was designed and built for experimental investigations. The values of the main cycle parameters were as follows:heat output: 20kW; electric output: 3 kW; rotor speed: 8000 rpm–12000 rpm. The micro-turbine experimental stand was designed to enable the measurement of the electric output, rotor speed, medium mass flow rate and the working medium parameters (pressure, temperature) in nearly 40 points located along the turbine and on its circumference. The turbine performance was calculated for HFE7100 but also for air and nitrogen as a working medium for testing purposes. In the first stage of experiments the turbine behavior was checked using these gases and the results were compared with the calculation data. The details, including the strength and deformation of particular turbine elements, are discussed in the paper. The dynamic behavior of the turbogenerator rotor system was also examined. The changes of a turbine inlet pressure and rotor speed in the case of varying turbine power, emergency shutdown and blackout were measured and presented in the paper in differentworking conditions.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
Advances in Vibration Engineering nr 2, strony 341 - 350,
ISSN: 0972-5768
Język:
angielski
Rok wydania:
2014
Opis bibliograficzny:
Kosowski K., Włodarski W., Piwowarski M., Stępień R.: Performance Characteristics of a Micro-Turbine// Advances in Vibration Engineering. -Vol. 2, nr. 4 (2014), s.341-350
Weryfikacja:
Politechnika Gdańska

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