Design and Manufacturing of a Metal 3D Printed kW Scale Axial Turboexpander

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00332785" target="_blank" >RIV/68407700:21220/19:00332785 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21720/19:00332785

Result on the web

<a href="http://dx.doi.org/10.1115/GT2019-91822" target="_blank" >http://dx.doi.org/10.1115/GT2019-91822</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/GT2019-91822" target="_blank" >10.1115/GT2019-91822</a>

Result language

angličtina

Original language name

Design and Manufacturing of a Metal 3D Printed kW Scale Axial Turboexpander

Original language description

Great expansion of distributed power and process systems based on thermodynamic cycles with single to hundred kW scale power output is limited mainly there are not available cost-effective expanders. Turboexpanders have a perspective of high efficiency and flexibility concerning operating parameters even for the micro applications. However, they suffer from a high manufacturing cost and lead time in the development of traditional technologies (such as casting and machining processes). Additive manufacturing provides a possibility to overcome some of the issues. Manufacturing parts with complicated shapes by this technology, combining multiple components into a single part or rapid production by 3D printing for development purposes are among the prospective features with this potential. On the other hand, the 3D printing processes come with certain limitations which need to be overcome. This paper shows a design and manufacturing process of a 3 kW axial impulse air turbine working with isenthalpic drop 30kJ/kg. Several samples to verify printing options and the turbine itself has been manufactured from stainless steel by the DMLS additive manufacturing method. Manufactured are two turbine variations regarding blade size and 3D printer settings while maintaining their specific dimensions. The turboexpanders testing method and rig is outlined. As the surface quality is an issue, several methods of post-processing of 3D printed stator and rotor blading to modify surface quality are suggested. Detailed experimental investigation is however subject of future work.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/TJ01000090" target="_blank" >TJ01000090: Research of aditive manufacturing (3D print) possibilities for manufacturing of expanders for low temperature decentralized energy applications</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition

ISBN

978-0-7918-5871-4

ISSN

—

e-ISSN

—

Number of pages

9

Pages from-to

—

Publisher name

American Society of Mechanical Engineers - ASME

Place of publication

New York

Event location

Phoenix, Arizona

Event date

Jun 17, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000502168300023