Experimental Development of Additively Manufactured Turboexpanders towards an Application in the ORC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F22%3A00382717" target="_blank" >RIV/68407700:21720/22:00382717 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/22:00382717

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Development of Additively Manufactured Turboexpanders towards an Application in the ORC

Popis výsledku v původním jazyce

Widespread application of distributed energy systems using thermodynamic cycles is hindered by the absence of efficient and cost-effective expanders. 3D printing offers an interesting option for customization and low cost manufacturing of turboexpander components, especially for low temperature machines which may operate with plastic materials. This work provides an introductory comprehensive experimental research of the performance of an air turboexpander with components being manufactured by various 3D printing methods and from different plastic materials and from stainless steel by DMLS method for reference. The flow components were investigated on a purpose-built pressurized air test rig. The highest obtained isentropic efficiency was around 40% with nylon components from the SLS method, but surprisingly also FDM method had shown outstanding performance. The SLA method, leaving a rather glassy surface and having the best resolution, ended up in our cold air trials poorly, and its brittleness had appeared to be a serious issue for practical applications.

Název v anglickém jazyce

Experimental Development of Additively Manufactured Turboexpanders towards an Application in the ORC

Popis výsledku anglicky

Widespread application of distributed energy systems using thermodynamic cycles is hindered by the absence of efficient and cost-effective expanders. 3D printing offers an interesting option for customization and low cost manufacturing of turboexpander components, especially for low temperature machines which may operate with plastic materials. This work provides an introductory comprehensive experimental research of the performance of an air turboexpander with components being manufactured by various 3D printing methods and from different plastic materials and from stainless steel by DMLS method for reference. The flow components were investigated on a purpose-built pressurized air test rig. The highest obtained isentropic efficiency was around 40% with nylon components from the SLS method, but surprisingly also FDM method had shown outstanding performance. The SLA method, leaving a rather glassy surface and having the best resolution, ended up in our cold air trials poorly, and its brittleness had appeared to be a serious issue for practical applications.

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/TO01000160" target="_blank" >TO01000160: Optimised expanders for small-scale distributed energy systems</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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