PDF Publication Title:
Text from PDF Page: 091
3.5 3 2.5 2 1.5 1 0.5 05 2 4 6 8 10 N row Ψ w 10 9 8 7 6 10 5 0 1 2 3 4 5 6 7 8 9 10 N row ζp ζs ζl Chapter 3 (a) (b) Figure 3.11: Design results for the 5-stage transonic 10 kWM turbine of Fig. 3.10. 3.11a: evo- lution of the load distribution among the stages, in terms of the aerodynamic loading expressed by the work coefficient Ψ, and of the stage specific work w. 3.11b: row-by-row evolution of the kinetic energy loss coefficients ζp (solid lines), ζs (dash dotted lines), and ζl (dashed lines) accounting for profile-, secondary- and tip leakage-losses. The presented results are obtained with the Traupel loss estimation model [21]. their consequences. The results of the design exercises, carried out with zTurbo, confirm that the adopted assumptions lead to unwanted design features, such as converging meridional channels and large flaring angles on the last stages. The predicted fluid-dynamic efficiency for the transonic and the supersonic machine is around 86% and 81%, respectively. Thus, the down-scaling potential of the centrifugal architecture is assessed, by applying the novel design methodology to the sizing of two 10 kWE ROTs, handling an expansion ratio of 45. The design of a 5 stages transonic turbine, and of a 3 stages slightly supersonic one is presented. The proposed design procedure proves valuable in overcoming the criticality previously highlighted. In particular, the resulting meridional channel monotonically diverges maintaining maximum flaring angles lower than 10◦. The resulting turbines are projected to exceed a fluid-dynamic efficiency of 79% and 77%, with speed of revolution around 124000 and 15400 rpm, respectively. This research therefore demonstrates that the ROT architecture is a promising concept for fu- ture ORC power systems, capable of preserving its features and performance when downscaled, for both transonic and slightly supersonic configurations. In particular, transonic machines are expected to outperform the supersonic one during partial load operations, thus contributing to significantly enhance the average efficiency of the ORC turbo-generator which, in the typical case, is called to work within a wide range of operating conditions. The detailed part-load modeling tool necessary to assess and quantify this last point will be developed as one of the next steps of the present research. Finally, CFD-based tools have a demonstrated their strong potential in deepening the results of the mean-line analyses presented here, and they will be therefore further developed in the future. Nomenclature 80 Ψ w [kJ/kg] ζ [%]PDF Image | New Concepts FOR Organic Rankine Cycle Power Systems
PDF Search Title:
New Concepts FOR Organic Rankine Cycle Power SystemsOriginal File Name Searched:
PhDTesis_ECasati.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 (Standard Web Page)