PDF Publication Title:
Text from PDF Page: 048
4. Results This Chapter is constituted by five sections. The first two are devoted to a better understanding of dense gas flows fluid-dynamics. Dense gas flows past an isolated airfoil and transonic dense gas flows through a turbine cascade are considered. The section third and fourth concern the results obtained by means of shape optimization related to an isolated airfoil and a turbine blade. In the last section the analysis of the GA-Hardness for dense gas flow optimization problems is presented. 4.1. Dense gas flow past an airfoil A flow over a NACA0012 is considered. The working fluid in the following computations is PP10. The objective is to explore the influence of dense-gas effects on the airfoil aerodynamic performance, also in comparison with reference results for a perfect gas (PFG) flowing at the same free-stream conditions. Always a flow at M∞ = 0.85, α = 1° is considered. The accurate MAH equation of state is used as state law. 4.1.1. Choice of the operating conditions For a dense gas, the parameters governing the flow are, in addition to the free-stream Mach number and angle of attack, the free stream thermodynamic conditions, i.e. the thermodynamic operation point. Just high subsonic freestream conditions are considered here. (A detailed study also about sonic, and low-supersonic freestream conditions over a NACA0012 airfoil are presented in [41]). For BZT inviscid steady flows, the flow adiabatic in the p−v plane is roughly superposed to the isentrope corresponding to free- stream conditions. In the p−v diagram, the locus of possible thermodynamic states of a flow field is then approximately superposed with the arch of the isentrope included between the minimum and maximum pressures in the flow. If the locus crosses the inversion zone, the flow field exhibits a region of BZT effects. The operation points chosen for the present study are picked on five different isentropes of the p−v plane. Figure 2 shows the five isentropes, the operation points, the inversion zone, and the dense gas region (Γ < 1) for PP10. Moving right to left along an isentrope the free-stream fundamental derivative Γ∞, initially positive, decreases, changes its sign where the isentrope crosses the inversion zone, reaches a minimum, then increases again (see Figure 47PDF Image | ANALYSIS AND OPTIMIZATION OF DENSE GAS FLOWS: APPLICATION TO ORGANIC RANKINE CYCLES TURBINES
PDF Search Title:
ANALYSIS AND OPTIMIZATION OF DENSE GAS FLOWS: APPLICATION TO ORGANIC RANKINE CYCLES TURBINESOriginal File Name Searched:
phd_thesis_PM_CONGEDO.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 |