PDF Publication Title:
Text from PDF Page: 151
Chapter 7: Conclusions The component models illustrate the main interactions in an ORC cycle and thus the main available control variables/degrees of freedom. They are used to size, evaluate the performance and simulate ORC systems. They are also useful to compare working fluids and optimize the thermodynamic conditions. In this work, special attention has been paid to the optimization of the cycle design and of the operating conditions. This optimization can be conducted with different objective functions (e.g. economic profitability, thermodynamic efficiency), or by taking into account practical limitations on the component side, such as the volume ratio imposed to the expander or the component size. Two prospective studies have finally been proposed to illustrate the utility of the developed model and of the practical guidelines provided in this work. The first one is a small-scale low cost solar ORC to be installed in rural area of developing countries. Using the performance data of the experimental campaigns, it was shown, with conservative hypotheses, that an overall solar- to-electricity efficiency of 8% is reachable. The second prospective study aimed at addressing the issue of heat recovery with variable heat sources. At the present time, there is indeed no commercially-available ORC system optimized for transient heat recovery. A control strategy involving a limited number of sensors has been proposed and successfully compared to current state-of-the-art control strategies. The developments presented in this work open a whole area of further research. The models and methods can be adapted to alternative ORC configurations or advanced cycle designs, such as: ➢ Transcritical or supercritical cycles ➢ ORCs using zeotropic substances ➢ Two-phase expansion cycles ➢ Multiple evaporation pressure cycles ➢ Superposed cycles The models themselves could be further refined: ➢ The influence of the lubrication on the expander and on the heat exchanger should be integrated into the steady-state models ➢ The turbine model and boundaries should be refined ➢ The operating maps should be extended to more expansion machines and working fluids ➢ The dynamic models should be validated in transient conditions In the same order of idea, the optimal control strategies developed for the particular case of a waste heat recovery system could be further improved, validated and proof-tested on other applications, such as a highly transient solar ORC (i.e. without storage). 2PDF Image | Organic Rankine Cycles for Waste Heat Recovery and Solar Uses
PDF Search Title:
Organic Rankine Cycles for Waste Heat Recovery and Solar UsesOriginal File Name Searched:
58881261.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)