PDF Publication Title:
Text from PDF Page: 001
applied sciences Article Parametric Assessment on the Advanced Exergy Performance of a CO2 Energy Storage Based Trigeneration System Wenxu Sun and Zhan Liu * College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; 1805020121@mails.qust.edu.cn * Correspondence: zhanliu168@qust.edu.cn Received: 27 October 2020; Accepted: 23 November 2020; Published: 24 November 2020 Abstract: In this paper, conventional and advanced exergy analyses are comprehensively introduced on an innovative transcritical CO2 energy storage based trigeneration system. Conventional exergy analysis can quantify in an independent way the component exergy destruction. However, the advanced technology is able to evaluate the interactions among components and identify the tangible promotion potential by allowing for the technical and economic limitations. In this method, the component exergy destruction is separated into avoidable and unavoidable parts, as well as the endogenous/exogenous parts. Calculation of the split parts is carried out by utilizing the thermodynamic cycle-based approach. Results coming from conventional exergy analysis indicate that the first three largest exergy destructions are given by cold storage, compressor 1, and heat exchanger 3. However, advanced analysis results demonstrate that the cold storage, compressor 1, and compressor 2 should be given the first improvement priority in sequence by depending on the avoidable exergy destruction. The turbine efficiency produces a higher impact on overall exergy destruction than compressor efficiency. The pinch temperature in cold storage causes the highest effect on exergy destruction amongst all the heat exchangers. There exists an optimum value in the compressor inlet pressure and ambient temperature. Keywords: CO2 energy storage; trigeneration system; advanced exergy analysis; parametric evaluation 1. Introduction The energy requirement has been marked with a sharp increase worldwide in the last several decades by referring to the statistical data on the consumption of energy resources amongst 69 countries [1]. In particular, the scarcity of energy is directly intensified due to the significant augment of energy consumption in developing economies like China, India, South Africa, and Brazil, which are accelerating the urbanization process. For example, the energy use in China is inferred to be 15 times larger by 2050 in comparison with that in 1970 [2]. It is also reported that the oil demand will increase by 30% all around the world from 2007 to 2035 [2]. The increasing consumption of fossil fuels has brought serious energy shortages, environmental pollution, and global warming [3–5]. On one hand, measures can be made to promote the conversion efficiency of the existing energy systems. On the other hand, more efforts should be made to increase the utilization of renewable energies like wind, solar, and biomass energy to improve the currently unreasonable energy structure. However, the remarkable randomness and intermittency make renewable energies the inordinate and discordant sources when integrated to an electricity grid, bringing the discard of some redundant energy during the dispatching stage [6]. The technology of compressed air energy storage (CAES) Appl. Sci. 2020, 10, 8341; doi:10.3390/app10238341 www.mdpi.com/journal/applsciPDF Image | Advanced Performance of a CO2 Energy Storage Based Trigen
PDF Search Title:
Advanced Performance of a CO2 Energy Storage Based TrigenOriginal File Name Searched:
applsci-10-08341-v2.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 |