PDF Publication Title:
Text from PDF Page: 012
25 20 15 10 5 0 cyclopentane-hexane cyclopentane-pentane hexane-pentane butane-cyclopentane butane pentane butane-hexane R245fa butane-propane cyclopentane-propane pentane-propane 0 10 20 30 40 50 60 Maximum operation pressure (bar) Fig. 4. Energetic efficiency of the binary zeotropic mixtures at 50/50 concentration In Fig. 4 the thermal efficiency of the binary mixtures of Table 4 is plotted against the maximum operation pressure of the ORC. Similarly to the case of pure fluids, there is a positive correlation between the thermal efficiency of the working fluid, the operation pressure and its critical temperature. Cyclopentane/Hexane and Cyclopentane/Pentane (with critical temperatures 236.50 oC and 217.55 oC respectively) have the highest thermal efficiencies while Pentane/Propane (Tcrit=146.62 oC), Hexane/Propane (Tcrit=165.57 oC) and Butane/Propane (Tcrit=124.33 oC) have the lowest thermal efficiencies. 3. Results and discussion The results of the simulations are organized in the following manner: for each heat source temperature, the exergy efficiency is plotted as a function of the operation pressure for a) pure fluids, b) binary fluid mixtures for subcritical and supercritical conditions. The pure fluids and the binary mixtures exhibiting the maximum exergy efficiency for subcritical and supercritical operating pressures are identified and their performance evaluation and other technical operation parameters are calculated and discussed. 3.1. Heat source temperature of 150 oC Due to the relatively low heat source temperature, the minimum pinch point requirement in the heater is not met for supercritical pressures for any of the pure fluids/mixtures examined, since their critical temperatures are substantially high. Therefore, the results shown refer only to the subcritical pressure range. The mixture of Hexane/Propane has a very small operating range between 5-7 bar with a low exergy efficiency (2-4%), so it is unnecessary to plot these results along with the other mixtures. 12 Energetic efficiency (%)PDF Image | Thermodynamic investigation of waste heat recovery
PDF Search Title:
Thermodynamic investigation of waste heat recoveryOriginal File Name Searched:
Braimakis_et_al._final_332_1063_1_DRaccT4fromT23.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)