Experimental Development of Additively Manufactured Turboexpanders towards an Application in the ORC
The result's identifiers
Result code in 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>
Alternative codes found
RIV/68407700:21220/22:00382717
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Experimental Development of Additively Manufactured Turboexpanders towards an Application in the ORC
Original language description
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.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
<a href="/en/project/TO01000160" target="_blank" >TO01000160: Optimised expanders for small-scale distributed energy systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů