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The Performance of Rankine Cycle as Waste Heat Recovery System for a Natural Gas Engine at Variable Working Conditions
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 05, 2016 by SAE International in United States
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Because of the great resources potential and the feature of low pollution of gaseous fuel, gaseous fuel internal combustion engines (gas engines) have been paid more and more attention. However, their average thermal efficiency is just about 30-40% wasting a huge amount of energy by exhaust, cooling water and so on, so waste heat recovery is very meaningful. Both the RC (steam Rankine Cycle) and the ORC (Organic Rankine Cycle) are regarded as the suitable way of WHR (waste heat recovery) for internal combustion engines. Therein, RC is usually used in large engines. The WHR system is always designed at rated work condition, while the gas engine may often work at different conditions. This makes the property of the waste heat source change, which affects the performance of WHR system, so it is very important to research its performance at variable working conditions. In this paper, a stationary electric generating natural gas engine of rated power 1,000kW is the studied object and RC is used as WHR system to recover the exhaust waste heat. A dynamic math model of this RC WHR system which takes into consideration of the interrelationship among main components is built by Simulink software. With this math model, not only the dynamic performance but also the steady state performance of the RC system can be calculated. Finally, the evaporating pressure, absorbed heat, output power and other parameters of RC at steady state varying with the property of exhaust is analyzed, which can provide references for the engineering application.
CitationShu, G., Wang, X., and Tian, H., "The Performance of Rankine Cycle as Waste Heat Recovery System for a Natural Gas Engine at Variable Working Conditions," SAE Technical Paper 2016-01-0237, 2016, https://doi.org/10.4271/2016-01-0237.
- ImranS., EmbersonD.R., “Natural gas fueled compression ignition engine performance and emissions maps with diesel and RME pilot fuels,” Applied Energy, 124:354-365, 2014.
- Huinian Chen, Weidong Zhang, Linyuan Xie, et al., “Reserves and development status of global unconventional natural gas,” Fault-Block Oil& Gas Field, 17(4):439-442, 2010.
- HoJ.C., ChuaK.J., ChouS.K., “Performance study of a micro turbine system for cogeneration application,” Renewable Energy, 29:1121-1133, 2004.
- Papagiannakis RG, Hountalas DT, “Combustion and exhaust emission characteristics of a dual fuel compression ignition engine operated with pilot diesel fuel and natural gas,” Energy Conversion and Management, 45(1819):2971-87, 2004.
- Xiaoning Li, “Research on Design and Performance Optimization of Diesel Engine Waste Heat Recovery Bottoming System and Key Component,” Doctoral thesis, Tianjin University, 2014.
- MAN Diesel & Turbo Co., “Waste Heat Recovery System (WHRS) for Reduction of Fuel Consumption, Emissions and EEDI”.http://www.mandieselturbo.com/files/news/filesof16851/MDT_WHRS.pdf. Dec, 2012.
- Wärtsilä Corporation, “Environmental benefits and fuel savings successfully combined in practice,” http://www.wartsila.com/media/news/28-09-2005-environmental-benefits-and-fuel-savings-successfully-combined-in-practice, 2005.
- Gewald Daniela, Siokos Konstantinos, “Waste heat recovery from a landfill gas-fired power plant,” Renewable and Sustainable Energy Reviews, 16:1779-1789, 2012.
- Peralez Johan, Dufour Pascal, “Towards model-based control of a steam Rankine process for engine waste heat recovery,” 2011 IEEE vehicle Power and Propulsion Conference, Seoul, Korea, Oct. 9-12, 2012.
- Wei Donghong, Lu Xuesheng, Lu Zhen, Gu Jianming, “Dynamic modeling and simulation of an Organic Rankine Cycle(ORC) system for waste heat recovery,” Applied Thermal Engineering, 28: 1216-1224, 2008.
- Jensen J.M., Tummescheit H, “Moving Boundary Models for Dynamic Simulation of Two-phase Flows,” The second International Modelica Conference, March 18-19, Germany, 2002.
- Wei Donghong, Lu Xuesheng, Gu Jianming, Lu Zhen, “Moving Boundary Model Application in the Dynamic Simulation of an Organic Rankine Cycle (ORC) System Driven by Exhaust,” Journal of Shanghai Jiaotong University, 09:1398-1402,2006.
- Rasmussen B.P., Shah R., Musser A. B., “Control-Oriented Modeling of Transcritical Vapor Compression Systems,” Master Thesis. University of Illinois at Urbana-Champaign, 2002.
- McKinley TL, Alleyne AG, “An advanced nonlinear switched heat exchanger model for vapor compression cycles using the moving-boundary method,” Int J Refrig, 31:1253-64, 2008.
- Shiming Yang, “Heat transfer,” Beijing, higher education pressure, 162-175(in Chinese), 1998.
- Horst Tilmann Abbe, Rottengruber Hermann-Sebastian, “Dynamic heat exchanger model for performance prediction and control system design of automotive waste heat recovery systems,” Applied Energy, 105:293-303,2013.
- Manente Giovanni, Toffolo Andrea, Lazzaretto Andrea, “An Organic Rankine Cycle off-design model for the search of the optimal control strategy,” Energy, 58:97-106,2013.
- Quoilin Sylvain, Aumann Richard, “Dynamic modeling and optimal control strategy of waste heat recovery Organic Rankine Cycles,” Applied Energy, 88:2183-2190, 2011.
- Horst Tilmann Abbe, Rottengruber Hermann-Sebastian, Seifert Marco, “Dynamic heat exchanger model for performance prediction and control system design of automotive waste heat recovery systems,” Applied Energy, 105:293-303,2013.