PDF Publication Title:
Text from PDF Page: 002
Radial Turbine Preliminary Design and Performance Prediction Angelo Leto1, a) 1 CIRA. Italian Aerospace Research Center, via Maiorise, 81043 Capua (CE), Italy a) a.leto@cira.it Abstract. This work will present a model for the preliminary optimized design of a radial turbine and an analysis of the most relevant loss models for efficiency prediction. A one-dimensional code, Radial Turbine Global Design, was developed in MATLAB environment. The model developed has the objective to estimate the efficiency and optimization of the parameters related to it, and losses prediction. The flow that through a turbine is complex and many mechanisms of the flow losses in turbine, have not be known well. The computational fluid dynamics CFD simulations is based on complex three-dimensional viscous methods, which require considerable iterations and, therefore time, in order to obtain an improvement of the geometry, through the convergence to an acceptable solution often not optimal. While, can be used of one-dimensional models able to predict the global design of the machine based on the combination of empirical and experimental loss models, able to provide a good performance estimate with reduced times. In this work, the loss models are analyzed and developed to obtain useful thermodynamic and geometrical information, necessary for an optimization CFD simulation. The RTGD has proven useful for the geometric design three-dimensional of the rotor blades and was tested by considering literature data of real radial turbines that use both Aria and Argon as working fluid, in addition it was compared with the NASA code RIFTUD. The code has excellent reliability because the results obtained reproduce the turbine geometry with a low error compared to the literatures case. Furthermore, RTGD can predict turbine performance through two approaches, the first considering the turbine geometry and the second considering the enthalpy drop due to losses. The second approach for estimating efficiency is necessary in order to confirm the one calculated with the first approach, and therefore the good geometric design of the turbine. The code, after being validated, was used for the radial turbines design for space applications for expander cycle rocket engines which require a high efficiency and a low expansion ratio. NOMENCLATURE b blade height c Absolute velocity - chord Dh hydraulic diameter Lh hydraulic length M Mach Number p Pressure r Radius T Temperature u Rotor Tangential Velocity w Relative Velocity Ws Specific Work Δh0 Total Enthalpy Drop Δhloss Total Enthalpy Loss 74th ATI National Congress AIP Conf. Proc. 2191, 020097-1–020097-9; https://doi.org/10.1063/1.5138830 Published by AIP Publishing. 978-0-7354-1938-4/$30.00 020097-1PDF Image | Radial turbine preliminary design and performance prediction
PDF Search Title:
Radial turbine preliminary design and performance predictionOriginal File Name Searched:
5138830.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |