PDF Publication Title:
Text from PDF Page: 040
24 Model 3-3-2 Preliminary design of radial turbine The application plays an important role in defining the turbine’s performance in terms of quantities such as pressure ratio and required power output or flow rates and speed of rota- tion. Other requirements such as maximizing efficiency or specific work transfer (and hence minimizing size) also need to be considered which are often in conflict with the application based parameters mentioned earlier. Thus it is important to have the right balance between these two class of parameters. The objective and scope of this model is to correlate the tur- bine isentropic efficiency with the corresponding fluid properties and does not provide the final optimum dimensions of a turbine. Certain assumptions are made in this design procedure. These are listed in the following section. Assumptions The model is based on the procedure which uses non-dimensional parameters. The assump- tions and scope of this model are: 1. The methodology is commonly used for incompressible flow machines but can be ex- tended to compressible flow machines [1]. 2. The flow in the rotor is extremely complicated with unsteady, 3-D, viscous and com- pressible flows with complicated secondary flows. The preliminary design is a very simplified representation of the real flow. 3. The design process is more concerned with the aerodynamic considerations without any mechanical stress analysis except in conditions where the knowledge of experience can be used. 4. The stator (nozzle) geometry has not been considered. 5. Due to the comparatively large expansion ratio resulting from the thermodynamic cycle design, the absolute velocities at the nozzle outlet are supersonic. This results in an uncertainty over the predicted turbine performance, because there are no validations available for organic fluids with supersonic rotor inflow conditions. 6. Because of the strict constraints on sizes, an efficient diffuser cannot be designed; thus its possibly beneficial effect is also neglected. 7. The loss coefficients for the nozzle and rotor have been assumed based on practical values available for well-designed nozzle and rotor for 90o inflow radial turbines [17]. 8. The method uses some empirical values which are not available for the high-expansion ratio typical of high-temperature ORC turbines. These values were therefore assumed, resulting in a certain degree of uncertainty on the predicted isentropic efficiency [21]. Based on these assumptions, a model has been implemented which is discussed in the following section. Akshay Hattiangadi Master of Science ThesisPDF Image | Working Fluid Design for Organic Rankine Cycle
PDF Search Title:
Working Fluid Design for Organic Rankine CycleOriginal File Name Searched:
MSc_SET_Akshay_Hattiangadi_Final_Thesis.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 |