Analysis of the key design features of low-power turbines for electricity generation

Kishkin, A. A.; Shevchenko, Yu. N.; Делков, А В

doi:10.1088/1757-899x/919/6/062030

IOP Conf. Ser.: Mater. Sci. Eng.

2020

DOI: 10.1088/1757-899x/919/6/062030

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Analysis of the key design features of low-power turbines for electricity generation

A. A. Kishkin

Yu. N. Shevchenko

А В Делков

Abstract: The paper presents an analysis of the design features of turbines for low-power electricity generation systems (up to 10 kW). The specifics of the working process of this type of turbines is described. The basic requirements for the design are presented. The description of the stand for experimental research is given. The obtained experimental results are presented.

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2024

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Power engineering of the tangential supply device of the microturbine of the thermal control system of a promising spacecraft

Shevchenko,

Kishkin,

Zuev

et al. 2024

Siberian Aerospace Journal

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This paper presents an overview of the current technical problem related to two-phase spacecraft thermal control systems and possible technical applications of thermal energy recovery in the organic Rankine cycle as an integral part of thermal management systems. The design solution involves the integration of a steam microturbine behind an evaporator radiator. The microturbine is a tangential supply device and a radially centripetal impeller of low speed nst40. In this area, there is no reliable data on the design and energy of both the supply device and the impeller. The energy (loss of enthalpy) of the supply device mainly determines the transport of the swirling flow to the impeller and, as a result, the circumferential operation on the turbine. A prototype of a radial microturbine has been developed and presented in order to evaluate the design of the flow part of both the supply device and the impeller. As a result of the analysis, the main determining hydrodynamic areas necessary for hydrodynamic analysis and mathematical elaboration of the flow calculation algorithm with an assessment of energy losses are identified: the flow of a swirling flow of a radial-annular slit; axial-annular slit and tangential supply device. The first two algorithms assume computational modeling, the model of energy losses in a tangential supply device is not amenable to analytical modeling because it includes a sequence (or compatibility) of flows under boundary conditions defined as “local resistances”: the sudden expansion, reversal of the flow, together with a section of radially circumferential flow, the mutual influence of these boundary conditions assumes only an expe rimental assessment of energy losses in a tangential supply device through the loss coefficient of local resistance in the range of changes in geometric and operating parameters. As a result of experimental studies, a database has been proposed on the loss coefficient of tangential microturbine supply devices in the field of the practical range of the existence of operating and design parameters.

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Power engineering of the tangential supply device of the microturbine of the thermal control system of a promising spacecraft

Shevchenko,

Kishkin,

Zuev

et al. 2024

Siberian Aerospace Journal

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show abstract

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Analysis of the key design features of low-power turbines for electricity generation

Cited by 1 publication

References 8 publications

Power engineering of the tangential supply device of the microturbine of the thermal control system of a promising spacecraft

Power engineering of the tangential supply device of the microturbine of the thermal control system of a promising spacecraft

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