A revised Tesla Turbine concept for 2-phase applications

Talluri L.; Niknam P.; Copeta A.; Amato M.; Iora P.; Uberti S.; Invernizzi C.; Di Marcoberardino G.; Pacini L.; Manfrida G.; Fiaschi D.

doi:10.1051/e3sconf/202123810006

E3S Web of Conferences (Jan 2021)

A revised Tesla Turbine concept for 2-phase applications

Talluri L.,
Niknam P.,
Copeta A.,
Amato M.,
Iora P.,
Uberti S.,
Invernizzi C.,
Di Marcoberardino G.,
Pacini L.,
Manfrida G.,
Fiaschi D.

Affiliations

Talluri L.: University of Florence, Department of Industrial Engineering
Niknam P.: University of Florence, Department of Industrial Engineering
Copeta A.: University of Brescia, Department of Mechanical and Industrial Engineering
Amato M.: University of Florence, Department of Industrial Engineering
Iora P.: University of Brescia, Department of Mechanical and Industrial Engineering
Uberti S.: University of Brescia, Department of Mechanical and Industrial Engineering
Invernizzi C.: University of Brescia, Department of Mechanical and Industrial Engineering
Di Marcoberardino G.: University of Brescia, Department of Mechanical and Industrial Engineering
Pacini L.: University of Florence, Department of Industrial Engineering
Manfrida G.: University of Florence, Department of Industrial Engineering
Fiaschi D.: University of Florence, Department of Industrial Engineering

DOI: https://doi.org/10.1051/e3sconf/202123810006
Journal volume & issue: Vol. 238
p. 10006

Abstract

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The Tesla turbine is an original expander working on the principle of torque transmission by wall shear stress. The principle – demonstrated for air expanders at lab scale has some attractive features when applied to two-phase expanders: it is suitable for handling limited flow rates (as is the case for machines in the range from 500W to 5 kW), it can be developed to a reasonable size (rotor of 0.1 to 0.25 m diameters), with acceptable rotational speeds (which range from 500 to 10000 rpm). The original concept was revisited, designing it for two-phase operation and considering not only the rotor configuration but the whole machine. The flow model was developed using complete real fluid assumptions including several new concepts such as bladed channels for the stator, labyrinth seals, and a rotating diffuser. Preliminary design sketches are presented, and results discussed and evaluated.

Published in E3S Web of Conferences

ISSN: 2267-1242 (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Geography. Anthropology. Recreation: Environmental sciences
Website: http://www.e3s-conferences.org/

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