PDF Publication Title:
Text from PDF Page: 021
Parameters Value Parameters β4 (degree) β5 (degree) Znozzle (-) Zrotor (-) Nozzle chord(m) Rotor chord (m) Radial Clearance (m) Nozzle trailing edge thickness (m) Rotor trailing edge thickness (m) Value 31.8 -57.40 19 16 0.0229 0.0457 0.23 ×10-3 0.51 ×10-3 0.76 ×10-3 ACCEPTED MANUSCRIPT performance parameters (i.e. turbine efficiency and power) are in good agreement with the Glassman cases and the maximum variation are within the acceptable margin as demonstrated in Fig. 9 for all working fluids. Due to the lack of availability in the experimental data for small-scale ORC turbines, verification of the present 3D CFD model for each turbine configuration is made against the PD results at nominal operating conditions (i.e. Table 5), as shown in Fig. 9a and b. The turbine efficiency and power are evaluated for five turbine configurations with working fluid R245fa. The comparison results exhibited that the maximum variation between the PD and CFD results was 3.28%, 3.56%, 3.85%, 3.65% and 4.12% for single-stage AFT, RIT, ROT and two-stage AFT and ROT respectively. The variance between the PD and CFD is mostly because of the characteristic of the 1D mean-line design, which is not able to provide all 3D flow characteristics. Eventually, there was better agreement between these results than can be seen in Fiaschi et al. (2016) and Russell et al. (2016), in which there was a 6-9% deviation in terms of the turbine isentropic efficiency. Furthermore, the 3D CFD results of the single-stage RIT and two-stage AFT turbines are compared with experimental data available in Jones (1996) and Kofskey and Nusbaum (1968), as shown in Figs. 10 and 11 respectively. To allow a fair comparison, most of the range/values of dimensions and operating conditions are taken from the above-mentioned references, as shown in Table 8 for radial inflow turbine and Table 9 for axial flow turbine respectively. The comparison results showed that the maximum difference in efficiency was about 4.29% with single-stage RIT configuration as shown in Fig. 10, compared to 3.57% with two-stage AFT as shown in Fig.11. This difference could also be attributed to the complex phenomena that can be accurately handled by 3D CFD modelling. Table 8 Details of the radial-inflow turbine geometry of a real case (Jones case (Jones, 1996)). r2 (m) r3 (m) r4 (m) r5tip (m) r5hup (m) b4 (m) b5 (m) α3 (degree) α4 (degree) α5 (degree) 0.074 0.0635 0.0582 0.0368 0.0152 0.00618 0.00635 77.80 76.8 -0.03 19PDF Image | turbine configuration for low-power organic Rankine cycle
PDF Search Title:
turbine configuration for low-power organic Rankine cycleOriginal File Name Searched:
Al_Jubori_et_al_New_performance_Cleaner_Production_2017.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 |