Journal ArticleDOI
Customized ORC micro turbo-expanders - From 1D design to modular construction kit and prospects of additive manufacturing
Andreas P. Weiß,Václav Novotný,Tobias Popp,Philipp Streit,Jan Spale,Gerd Zinn,Michal Kolovratnik +6 more
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TLDR
Focusing to further accelerate and cheapen the customized micro-turbogenerators for low temperature applications, this work provides an outlook of possibilities of additive manufacturing methods like 3D printing of turbine nozzles and rotors that provide potential to improve the competiveness of small-scale ORC.About:
This article is published in Energy.The article was published on 2020-10-15. It has received 14 citations till now. The article focuses on the topics: Turbine & Design tool.read more
Citations
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Journal ArticleDOI
Efficiency based optimization of a Tesla turbine
TL;DR: In this article, an efficiency-based numerical optimization of a Tesla turbine is presented, where the turbine's parameters are inlet nozzle height, inter-disc gap, nozzle angle, pressure and rotational velocity.
Journal ArticleDOI
Impact of Rotor Geometry Optimization on the Off-Design ORC Turbine Performance
Łukasz Witanowski,Piotr Klonowicz,Piotr Lampart,Piotr Klimaszewski,Tomasz Suchocki,Łukasz Jędrzejewski,Dawid Zaniewski,Piotr Ziółkowski +7 more
Journal ArticleDOI
Aerodynamic design and experimental validation of high pressure ratio partial admission axial impulse turbines for unmanned underwater vehicles
TL;DR: In this article, the meanline turbine design method is first documented together with the performance prediction method at off-design points, and the numerical loss breakdown method is then described to thoroughly verify empirical correlations.
Journal ArticleDOI
Aerodynamic design and experimental validation of high pressure ratio partial admission axial impulse turbines for unmanned underwater vehicles
TL;DR: In this paper , the meanline turbine design method is first documented together with the performance prediction method at off-design points, and the numerical loss breakdown method is then described to thoroughly verify empirical correlations.
Proceedings ArticleDOI
Absorption power cycle with a 3D-printed plastic micro turboexpander - Considerations, design and first experimental results
TL;DR: In this article, a proof-of-concept APC operating with water-lithium bromide (LiBr) as a working fluid is presented, which is a novel concept especially suitable for micro scale low temperature distributed power systems.
References
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Journal ArticleDOI
Continuous liquid interface production of 3D objects
John R. Tumbleston,David Shirvanyants,Nikita Ermoshkin,Rima Janusziewicz,Ashley R. Johnson,David L. Kelly,Kai Chen,Robert Pinschmidt,Jason P. Rolland,Alexander Ermoshkin,Edward T. Samulski,Joseph M. DeSimone,Joseph M. DeSimone +12 more
TL;DR: The continuous generation of monolithic polymeric parts up to tens of centimeters in size with feature resolution below 100 micrometers is demonstrated and critical control parameters are delineated and shown that complex solid parts can be drawn out of the resin at rates of hundreds of millimeters per hour.
Journal ArticleDOI
Techno-economic survey of Organic Rankine Cycle (ORC) systems
TL;DR: An overview of the different ORC applications is presented in this paper, and an in-depth analysis of the technical challenges related to the technology, such as working fluid selection and expansion machine issues, is reported.
Journal ArticleDOI
Design and experimental study of ORC (organic Rankine cycle) and radial turbine using R245fa working fluid
TL;DR: In this paper, an ORC (Organic Rankine Cycle) capable of generating electric power using a low-temperature heat source was developed and an experimental study was conducted.
Journal ArticleDOI
A Mean Line Prediction Method for Axial Flow Turbine Efficiency
S. C. Kacker,U. Okapuu +1 more
TL;DR: In this paper, a mean line loss system is described, capable of predicting the design point efficiencies of current axial turbines of gas turbine engines, which is a development of the Ainley/Mathieson technique of 1951.