PDF Publication Title:
Text from PDF Page: 020
16 Proceedings of the University of Vaasa. Reports Today, Stirling cycle-based systems are in commercial use as a heat pump, and in cryogenic refrigeration and air liquefaction. As a prime mover, Stirling cycles remain the subject of research and development efforts. (Thombare & Verma 2008) High cost also prevents popularization of this technology (Wu & Wang 2006). Poullikkas (2005) has estimated that 9.0 MW of electrical power can be recovered by a bottoming Stirling cycle from the exhaust of a Rolls–Royce RB211 gas tur- bine generating 27.5 MW of electrical power. This means 33 % additional power. Such a plant could obtain a total electrical efficiency of 48 % Vlaskos et al. (2010) have simulated the Stirling engine cycle as a bottoming cy- cle for a diesel engine. A hypothetical 5000 kW diesel engine was assumed to compare different options for exhaust gas heat recovery. 12- and 16-cylinder, low speed Stirling engines were simulated. The simulation with the 16-cylinder, 72 l version showed the following characteristics: shaft power 740 kW (600 rpm), overall efficiency 27%. The combined output was then increased from 5000 kW to 5740 kW without additional fuel consumption, improving the specific fuel oil consumption by 12.9%, from 181 to 157 g/kWh. Obernberger et al. (2003) report the Stirling engine technology as of high interest for a small-scale biomass CHP plant. A 35 kW Stirling engine especially designed for CHP plants using biomass fuels was developed at the Technical University of Denmark. The engine has four cylinders arranged in a square with the cylinders parallel to each other. Helium is used as the working gas at a maximum mean pressure of 45 bar. The plant was put into operation in summer 2002 and compre- hensive test runs had been performed by spring 2003. The average electric power output of 31 kW was less than expected. The achieved electrical efficiency was 20%, lower than the expected 25%). 10 Gas bottoming cycles: Brayton An air bottoming cycle (ABC) was proposed in the late 1980s as an alternative for the conventional steam bottoming cycle (Korobitsyn 2002). The Brayton cycle can be used as a bottoming cycle for the gas turbine by means of a gas–gas heat exchanger. In contrast to the conventional combined cycle, this alternative does not require bulky steam equipment (boiler, steam turbine, condenser, etc.), and allows unmanned operation. An increase in power of 18–30% and in efficiency of up to 10%-units is expected in a gas turbine with Brayton bottoming cycle de- pending on the number of intercoolers. (Poullikkas 2005; Korobitsyn 1998)PDF Image | Waste Heat Recovery Bottoming Cycle Alternatives
PDF Search Title:
Waste Heat Recovery Bottoming Cycle AlternativesOriginal File Name Searched:
isbn_978_952_476_389_9.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 |