Autors: Milkov, N., Punov, P. B., Danel, Q., Perilhon, C., Podevin, P.
Title: Optimisation of waste heat recovery system operating parameters for diesel engine based on Rankine cycle
Keywords: diesel engine, waste heat recovery, Rankine cycle, numerical

Abstract: This article presents an optimization study of the Rankine cycle operating parameters as a function of diesel engine operating mode. The Rankine cycle here is studied as a waste heat recovery system which uses the engine exhaust gases as a heat source. The engine exhaust gases parameters (temperature, mass flow rate and composition) were defined on the engine test bed at constant engine speed and variable load. It was found that the exhaust gases temperature is within the range of 167°C to 557°C and the mass flow rate varies from 88,5kg/h to 281,3kg/h. An engine speed of 2000 rpm was chosen in this study due to the fact that this speed provides higher engine thermal efficiency. The Rankine cycle thermal power and efficiency was numerically estimated by means of a simulation code in Python(x,y). This code includes discretized heat exchanger model and simplified model of the pump and the expander based on their isentropic efficiency.

References

  1. N. Milkov, P. Punov, Q. Danel, C. Périlhon, P. Podevin, Etude parametrique d’un cycle de Rankine pour la recuperation d’énergie des gaz d’échappement d’un moteur d'automobile, Scientific Conference COFRET’16, Bucarest, Romania, 2016
  2. P.Punov, N. Milkov, Q. Danel, C. Périlhon, A Study of Waste Heat Recovery Impact on a Passenger Car Fuel Consumption in New European Driving Cycle, Proceedings of the European Automotive Congress EAEC-ESFA 2015, Bucarest, Romania, Springer, 2015, 151-163, DOI 10.1007/978-3-319-27276-4_14.
  3. P.Punov, T. Evtimov, N. Milkov, G. Descombes, P. Podevin, Impact of Rankine cycle WHR on passenger car engine fuel consumption under various operating conditions, Proceedings of ECOS 2015 - the 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems June 30-July 3, 2015, Pau, France.
  4. A. Domingues, H. Santos, M. Costa, Analysis of vehicle exhaust waste heat recovery potential using a Rankine cycle, Energy, 2012; 49: 71-85
  5. B. Peris, J. Navarro-Esbrí, F. Molés, Bottoming organic Rankine cycle configurations to increase Internal Combustion Engines power output from cooling water waste heat recovery, Applied Thermal Engineering, 2013; 61: 364 – 371
  6. S. Zhu, K. Deng, S. Qu, Energy and exergy analyses of a bottoming Rankine cycle for engine exhaust heat recovery, Energy, 2013; 58: 448 – 457
  7. F. Yang, H. Zhang, C. Bei, S. Song, E. Wang, Parametric optimization and performance analysis of ORC (organic Rankine cycle) for diesel engine waste heat recovery with a fin-and-tube evaporator, Energy, 2015; 91: 128 – 141
  8. Y. Kim, D. Shin, C. Kim, G. Cho Single-loop organic Rankine cycles for engine waste heat recovery using both low- and high-temperature heat sources, Energy, 2016; 96: 482 – 494
  9. B. Kӧlsch, J. Radulovic, Utilisation of diesel engine waste heat by Organic Rankine Cycle, Applied Thermal Engineering, 2015; 78: 437 – 448
  10. D. Di Battista, M. Mauriello, R. Cipollone, Waste heat recovery of an ORC-based power unit in a turbocharged diesel engine propelling a light duty vehicle, Applied Energy, 2015; 152: 109 –120
  11. S. Amicabile, J. Lee, D. Kum, A comprehensive design methodology of organic Rankine cycles for the waste heat recovery of automotive heavy-duty diesel engines, Applied Thermal Engineering, 2015; 87: 574 – 585
  12. Wang, E.H., Zhang, H.G., Fan, B.Y., Ouyang, M.G., Yang, F.Y., Yang, K., Wang, Z., Zhang, J., and Yang, F.B.: ‘Parametric analysis of a dual-loop ORC system for waste heat recovery of a diesel engine’, Applied Thermal Engineering, 2014, 67, (1–2), 168-178
  13. Milkov, N. V, Danel, Q., Punov, P. B, Evtimov, T. P, Perilhon, C., Podevin, P., 2015,BulTrans-2015: Numerical and experimental study of heat exchanger designed for waste heat recovery system from exhaust gases based on Rankine cycle, Sozopol, Bulgaria, pp. 97-102
  14. C. Herer, D. Gallori, Thermohydraulique des réacteurs à eau sous pression, Techniques de l’Ingénieur, traité Génie nucléaire, 2000
  15. L. Sun, K. Mishima, An evaluation of prediction methods for saturated flow boiling heat transfer in mini-channels, Sol Energy, 2009; 52: 5323–5329

Issue

BulTrans-2016, pp. 69-74, 2016, Bulgaria, Technical University Academic Publishing House, ISSN 1313-955X

Full text of the publication

Вид: публикация в национален форум с межд. уч., публикация в реферирано издание