A revised Tesla uurbine concept for 2-phase applications

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

doi:10.1051/e3sconf/202123810006

A revised Tesla uurbine concept for 2-phase applications

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

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Conference article › peer-review

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Abstract

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.

Original language	English
Article number	10006
Journal	E3S Web of Conferences
Volume	238
Early online date	16 Feb 2021
DOIs	https://doi.org/10.1051/e3sconf/202123810006
Publication status	Published - 16 Feb 2021
Event	2020 Applied Energy Symposium (ICAE), 100RES 2020 - Pisa, Italy Duration: 29 Oct 2020 → 30 Oct 2020

Bibliographical note

Funding Information:
This research was funded by DIMI (University of Brescia) under the TEC (Tesla Expander Chiller) project.

ASJC Scopus subject areas

Environmental Science(all)
Energy(all)
Earth and Planetary Sciences(all)

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10.1051/e3sconf/202123810006

TalluriL2021revisedFinal published version, 1.44 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

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title = "A revised Tesla uurbine concept for 2-phase applications",

abstract = "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.",

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AU - Talluri, L.

AU - Niknam, P.

AU - Copeta, A.

AU - Amato, M.

AU - Iora, P.

AU - Uberti, S.

AU - Invernizzi, C.

AU - Di Marcoberardino, G.

AU - Pacini, L.

AU - Manfrida, G.

AU - Fiaschi, D.

N1 - Funding Information: This research was funded by DIMI (University of Brescia) under the TEC (Tesla Expander Chiller) project.

PY - 2021/2/16

Y1 - 2021/2/16

N2 - 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.

AB - 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.

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A revised Tesla uurbine concept for 2-phase applications

Abstract

Bibliographical note

ASJC Scopus subject areas

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