APPLICATION ANALYSIS OF WANKEL EXPANDER FOR ORGANIC RANKINE CYCLE

Li Peiyun; Meng Jinlong; Wang Wen; Weng Yiwu

doi:10.19912/j.0254-0096.tynxb.2021-1015

PDF(1822 KB)

Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (2) : 1-8. DOI: 10.19912/j.0254-0096.tynxb.2021-1015

APPLICATION ANALYSIS OF WANKEL EXPANDER FOR ORGANIC RANKINE CYCLE

Li Peiyun¹, Meng Jinlong², Wang Wen¹, Weng Yiwu¹

Author information +

History +

Abstract

The operation mechanism of the Wankel expander in organic Rankine cycle are analyzed theoretically and the performance of the expander is simulated by developed thermodynamics model considering leakage among chambers. With R245fa as the working fluid, several thermodynamic parameters of the expander are discussed in a completed working cycle, and the structure parameters of chamber profile including shape factor, rotor profile, intake angle, eccentric distance and wheelbase coefficient are discussed as well. The results show that the Wankel expander can achieve a large expansion ratio, and all the discussed factors can take significant impacts on working performance induding mass flow rate, output power, expansion pressure ration, and volumetric efficiency. Therefore, it is necessary to select optimized parameters for satisfiing performance of the expander in future application.

Key words

solar energy / energy conversion / leakage / organic Rankine cycle / Wankel / expander

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Li Peiyun, Meng Jinlong, Wang Wen, Weng Yiwu. APPLICATION ANALYSIS OF WANKEL EXPANDER FOR ORGANIC RANKINE CYCLE[J]. Acta Energiae Solaris Sinica. 2023, 44(2): 1-8 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1015

References

[1] 顾煜炯, 耿直, 谢典. 太阳能有机朗肯循环系统性能分析及综合评价[J]. 太阳能学报, 2018, 39(2): 482-490.
GU Y J, GENG Z, XIE D.Performance analysis and comprehensive evaluation of organic Rankine cycle system driven by solar energy[J]. Acta energiae solaris sinica, 2018, 39(2): 482-490.
[2] JUBORI A A, Al-DADAH R K, MAHMOUD S, et al. Modelling and parametric analysis of small-scale axial and radial-outflow turbines for organic Rankine cycle applications[J]. Applied energy, 2017, 190: 981-996.
[3] WEI A P, POPP T, ZINN G, et al.A micro-turbine-generator-construction-kit(MTG-c-kit) for small-scale waste heat recovery ORC-plants[J]. Energy, 2019, 181:51-55.
[4] QIU G Q, LIU H, RIFFAT S.Expanders for micro-CHP systems with organic Rankine cycle[J]. Applied thermal engineering, 2011, 31(16): 3301-3307.
[5] BAO J J, LI Z.A review of working fluid and expander selections for organic Rankine cycle[J]. Renewable & sustainable energy reviews, 2013, 24: 325-342.
[6] WANG H, PETERSON R B, HERRON T.Experimental performance of a compliant scroll expander for an organic Rankine cycle[J]. Proceedings of the institution of mechanical engineers, part A: journal of power and energy, 2009, 223(7), 863-872.
[7] LEMORT V, DECLAYE S, QUOILIN S.Experimental characterization of a hermetic scroll expander for use in a micro-scale Rankine cycle[J]. Proceedings of the institution of mechanical engineers,part A:journal of power & energy, 2011, 226(1): 126-136.
[8] 张业强, 吴玉庭, 夏国栋, 等. 单螺杆膨胀机在有机朗肯循环系统中的性能研究[J]. 机械工程学报, 2015, 51(16): 156-163.
ZHANG Y Q, WU Y T, XIA G D, et al.Performance study on single-screw expander in organic Rankine cycle system[J]. Journal of mechanical engineering, 2015, 51(16): 156-163.
[9] BIANCHI M, BRANCHINI L, CASARI N, et al.Experimental analysis of a micro-ORC driven by piston expander for low-grade heat recovery[J]. Applied thermal engineering, 2018, 148: 1278-1291.
[10] SUANKRAMDEE W, THONGTIP T, APHORNRATANA S.Development of a sliding vane expander in a micro-scale ORC system for utilizing low-grade heat[J]. Energy procedia, 2017, 138: 817-822.
[11] OZCANLI M, BAS O, AKAR M A, et al.Recent studies on hydrogen usage in Wankel SI engine[J]. International journal of hydrogen energy, 2018, 43(38): 18037-18045.
[12] ANTONELLI M, BACCIOLI A, FRANCESCONI M, et al.Operating maps of a rotary engine used as an expander for micro-generation with various working fluids[J]. Applied energy, 2014, 113: 742-750.
[13] KIM D K, CHOI H W, KIM M S.Design of a rotary expander as an expansion device integrated into organic Rankine cycle (ORC) to recover low-grade waste heat[J]. Applied thermal engineering, 2019, 163: 114326.
[14] 李鹏, 韩中合, 梅中恺,等. 低温过热有机朗肯循环工质筛选及参数优化[J]. 太阳能学报, 2018, 39(9): 19-28.
LI P, HAN Z H, MEI Z K, et al.Working fluid selection and parametric optimization of a superheat organic Rankine cycle for low temperature waste heat recovery[J]. Acta energiae solaris sinica, 2018, 39(9): 19-28.
[15] 毛静雯, 徐斌, 胡宜康, 等. 太阳能有机朗肯循环研究与应用综述[J]. 低温与超导, 2020, 48(6): 77-83.
MAO J W, XU B, HU Y K, et al.Summary of research and application of solar organic Rankine cycle[J]. Cryogenics & superconductivity, 2020, 48(6): 77-83.
[16] DONG B S, XU G Q, LI T T, et al.Parametric analysis of organic Rankine cycle based on a radial turbine for low grade waste heat recovery[J]. Applied thermal engineering, 2017,126: 470-479.
[17] 沈阳, 王瑞祥. R245fa、R123对太阳能有机朗肯循环系统性能的影响[J]. 太阳能学报, 2017, 38(11): 3085-3090.
SHEN Y, WANG R X.Effect of R245fa and R123 on performance of solar organic Rankine cycle system[J]. Acta energiae solaris sinica, 2017, 38(11): 3085-3090.
[18] 高建强, 孙鑫, 曲振肖, 等. 太阳能超临界有机朗肯循环的工质选择和性能分析[J]. 太阳能学报, 2015, 36(8): 2002-2007.
GAO J Q, SUN X, QU Z X, et al.Selection of working fluid and performance analysis of solar supercritical organic Rankine cycle[J]. Acta energiae solaris sinica, 2015, 36(8): 2002-2007.
[19] LONI R, NAJAFI G, BELLOS E, et al.A review of industrial waste heat recovery system for power generation with organic Rankine cycle: recent challenges and future outlook[J]. Journal of cleaner production, 2020, 287: 125070.
[20] 李沛昀, 李杨, 王文彬, 等. 三角转子膨胀机在跨临界CO₂制冷循环中的应用分析[J]. 化工学报, 2021, 72(增刊1): 161-169.
LI P Y, LI Y, WANG W B, et al.Application analysis of Wankel expander in CO₂ trans-critical refrigeration cycle[J]. CIESC journal, 2021, 72(S1): 161-169.
[21] ZHANG Y L, WANG W.Factors affecting the cylinder displacement of a Wankel compressor in a micro-cooling system[J]. HVAC & R research, 2012, 18: 366-376, 3.
[22] ZHANG Y L, WANG W.Effects of leakage and friction on the miniaturization of a Wankel compressor[J]. Frontiers in energy, 2011, 5(1): 8132.
[23] CHEN R, WANG W.Discussion on leaking characters in meso-scroll compressor[J]. International journal of refrigeration, 2009, 32(6): 1431841.
[24] KANG S H.Design and experimental study of ORC(organic Rankine cycle) and radial turbine using R245fa working fluid[J]. Energy, 2012, 41(1): 514-524.
[25] LIU C, WANG S K, ZHANG C, et al. Experimental study of micro-scale organic Rankine cycle system based on scroll expander[J]. Energy, 2019, 188: 115930.1-115930.11.