Open feed organic heater pressure analysis on single-stage regenerative organic Rankine cycle performance

Ghalya Pikra; Nur Rohmah; Rakhmad Indra Pramana; Andri Joko Purwanto; Ghalya Pikra; Nur Rohmah; Rakhmad Indra Pramana; Andri Joko Purwanto

doi:10.14203/j.mev.2020.v11.30-37

Open feed organic heater pressure analysis on single-stage regenerative organic Rankine cycle performance

Ghalya Pikra, Nur Rohmah, Rakhmad Indra Pramana, Andri Joko Purwanto

Abstract

Single-stage regenerative organic Rankine cycle (SSRORC) is a system that is used for increasing the simple organic Rankine cycle (ORC) performance. Open feed organic heater (OFOH) addition in the ORC system increase power and efficiency of the system. This paper analyzes the SSRORC performance with a variation of P6/P1 ranges from 1.25 to 3.75 with an increment of 0.25, where P6 is the OFOH pressure at the inlet side and P1 is the pressure at the inlet pump 1, respectively. Hot water was used as the heat source with 100 °C and 100 l/min of temperature and volume flow rate as the initial data. R227ea, R245fa, and R141b were chosen as working fluids for performance analysis. The analysis was performed by calculating the heat input, heat loss, pump and turbine power, net power, and thermal efficiency through energy balance. Exergy input, exergy output, and exergy efficiency were analyzed through exergy balance. The results show that P6/P1 = 2 obtains the highest performance than the other pressure ratios for R227ea, while R245fa and R141b obtain the highest performance at P6/P1 = 2.25. R141b has better performance than the other two fluids with 10.97 % and 11.96 % for thermal and exergy efficiency. The results show that the ratio of OFOH pressure at the inlet side to the pressure at inlet pump 1 (P6/P1) in the middle value obtains the best performance.

10.14203/j.mev.2020.v11.30-37

Keywords

single-stage regenerative organic rankine cycle; open feed organic heater; R227ea; R245fa; R141b.

Full Text:

PDF

References

D. Roy, S. Samanta, and S. Ghosh, “Techno-economic and environmental analyses of a biomass based system employing solid oxide fuel cell, externally fired gas turbine and organic Rankine cycle,” J. Clean. Prod., vol. 225, pp. 36–57, 2019. crossref

G. Manente, A. Lazzaretto, and E. Bonamico, “Design guidelines for the choice between single and dual pressure layouts in organic Rankine cycle (ORC) systems,” Energy, vol. 123, pp. 413–431, 2017. crossref

N. Chagnon-lessard and L. Gosselin, “Geothermal power plants with maximized specific power output : Optimal working fluid and operating conditions of subcritical and transcritical organic Rankine cycles,” Geothermics, vol. 64, pp. 111–124, 2016. crossref

A.H. Mosaffa, N.H. Mokarram, and L.G. Farshi, “Thermoeconomic analysis of combined different ORCs geothermal power plants and LNG cold energy,” Geothermics, vol. 65, pp. 113–125, 2017. crossref

S. Quoilin, M. Orosz, H. Hemond, and V. Lemort, “Performance and design optimization of a low-cost solar organic Rankine cycle for remote power generation,” Sol. Energy, vol. 85, no. 5, pp. 955–966, 2011. crossref

F. Sun, Y. Ikegami, B. Jia, and H. Arima, “Optimization design and exergy analysis of organic Rankine cycle in ocean thermal energy conversion,” Appl. Ocean Res., vol. 35, pp. 38–46, 2012. crossref

T. Chen, W. Zhuge, Y. Zhang, and L. Zhang, “A novel cascade organic Rankine cycle ( ORC ) system for waste heat recovery of truck diesel engines,” Energy Convers. Manag., vol. 138, pp. 210–223, 2017. crossref

E. Sciubba, L. Tocci, and C. Toro, “Thermodynamic analysis of a Rankine dual loop waste thermal energy recovery system,” Energy Convers. Manag., vol. 122, pp. 109–118, 2016. crossref

T. Eller, F. Heberle, and D. Brüggemann, “Second law analysis of novel working fluid pairs for waste heat recovery by the Kalina cycle,” Energy, vol. 119, pp. 188–198, 2017. crossref

T. Li, Z. Zhang, J. Lu, J. Yang, and Y. Hu, “Two-stage evaporation strategy to improve system performance for organic rankine cycle,” Appl. Energy, vol. 150, pp. 323–334, 2015. crossref

K. Braimakis and S. Karellas, “Energetic optimization of regenerative organic Rankine cycle (ORC) configurations,” Energy Convers. Manag., vol. 159, no. January, pp. 353–370, 2018. crossref

J. Li, Z. Ge, Y. Duan, Z. Yang, and Q. Liu, “Parametric optimization and thermodynamic performance comparison of single-pressure and dual-pressure evaporation organic Rankine cycles,” Appl. Energy, vol. 217, no. February, pp. 409–421, 2018. crossref

H. Xi, M.J. Li, C. Xu, and Y.L. He, “Parametric optimization of regenerative organic Rankine cycle (ORC) for low grade waste heat recovery using genetic algorithm,” Energy, vol. 58, pp. 473–482, 2013. crossref

V. Zare, “A comparative exergoeconomic analysis of different ORC configurations for binary geothermal power plants,” Energy Convers. Manag., vol. 105, pp. 127–138, 2015. crossref

S. Safarian and F. Aramoun, “Energy and exergy assessments of modified organic Rankine cycles (ORCs),” Energy Reports, vol. 1, pp. 1–7, 2015. crossref

G. Pikra and N. Rohmah, “Comparison of single and double stage regenerative organic Rankine cycle for medium grade heat source through energy and exergy estimation,” Int. J. Renew. Energy Dev., vol. 8, no. 2, pp. 141–148, 2019. crossref

M. J. Moran and H. N. Shapiro, “Fundamentals of Engineering Thermodynamics,” 6th ed. United States of America: John Wiley & Sons, Inc., 2008. crossref

K. Rahbar, S. Mahmoud, R.K. Al-dadah, N. Moazami, and S.A. Mirhadizadeh, “Review of organic Rankine cycle for smallscale applications,” Energy Convers. Manag., vol. 134, pp. 135–155, 2017. crossref

R. Long, Y.J. Bao, X.M. Huang, and W. Liu, “Exergy analysis and working fluid selection of organic Rankine cycle for low grade waste heat recovery,” Energy, vol. 73, pp. 475–483, 2014. crossref

W. Xu, S. Deng, L. Zhao, W. Su, Y. Zhang, S. Li, and M. Ma, “How to quantitatively describe the role of the pure working fluids in subcritical organic Rankine cycle : A limitation on efficiency,” Energy Convers. Manag., vol. 172, no. May, pp. 316–327, 2018. crossref

J. Bao and L. Zhao, “A review of working fluid and expander selections for organic Rankine cycle,” Renew. Sustain. Energy Rev., vol. 24, pp. 325–342, 2013. crossref

B.F. Tchanche, G. Lambrinos, A. Frangoudakis, and G. Papadakis, “Low-grade heat conversion into power using organic Rankine cycles – a review of various applications,” Renew. Sustain. Energy Rev., vol. 15, no. 8, pp. 3963–3979, 2011. crossref

B. Liu, K. Chien, and C. Wang, “Effect of working fluids on organic Rankine cycle for waste heat recovery,” Energy, vol. 29, pp. 1207–1217, 2004. crossref