Advertisement

Pinch-Point Temperature Difference Analysis of Dual-Loop Organic Rankine Cycle

  • Xinyu Li
  • Tao LiuEmail author
  • Lin Chen
  • Peng Li
Conference paper
  • 264 Downloads
Part of the Environmental Science and Engineering book series (ESE)

Abstract

Taking the dual-loop organic Rankine cycle of waste heat recovery from diesel engine exhaust as the research object, benzene and cyclohexane were selected as the working fluids of high-temperature cycle, and R134a was selected as the working fluid of low-temperature cycle. Taking the net power output per unit heat transfer area, the mass flow of the working fluids and the net output power of the cycle as the objective function, the influence of the pinch-point temperature difference (PPTD) of the high-temperature evaporator and the low-temperature condenser on the system performance are discussed. The research shows that when the pinch-point temperature difference of the high-temperature evaporator increases, the total net work of the cycle output, the mass flow rate of the working fluid, and the required heat transfer area are reduced, and the net work output per unit heat transfer area is increased. There is a best match between the pinch-point temperature difference of the high-temperature evaporator and the low-temperature condenser. When the sum of the pinch-point temperature differences of the high-temperature evaporator and the low-temperature condenser is 30 °C and 40 °C, respectively, for all selected working fluids, there is an optimal pinch-point temperature difference of the high-temperature evaporator.

Keywords

Organic rankine cycle Diesel exhaust Thermodynamic analysis Enthapy 

Notes

Acknowledgements

The authors wish to acknowledge the financial support of the Natural Science Foundation of Tianjin (No. 16JCZDJC31400).

References

  1. 1.
    Endo, T., Kawajiri, S., Kojima, Y., et al.: Study on maximizing exergy in automotive engines. Spark Ignition Engines (2007)Google Scholar
  2. 2.
    Öhman, H.., Lundqvist P.: Comparison and analysis of performance using low temperature power cycles. Appl. Therm. Eng. 52(1), 160–169 (2013)Google Scholar
  3. 3.
    Bao, J, Zhao, L.: A review of working fluid and expander selections for organic rankine cycle. Renew. Sustain. Energy Rev. 24(Complete), 325–342 (2013)Google Scholar
  4. 4.
    Vaja, I., Gambarotta, A.: Internal Combustion Engine (ICE) bottoming with Organic Rankine Cycles (ORCs). Energy 35(2), 1084–1093 (2010)CrossRefGoogle Scholar
  5. 5.
    Srinivasan, K.K., Mago, P.J., Krishnan, S.R.: Analysis of exhaust waste heat recovery from a dual fuel low temperature combustion engine using an organic rankine cycle. Energy 35(6), 2387–2399 (2010)CrossRefGoogle Scholar
  6. 6.
    Larsen, U., Pierobon, L., Haglind, F., et al.: Design and optimisation of organic rankine cycles for waste heat recovery in marine applications using the principles of natural selection. Energy 55, 803–812 (2013)CrossRefGoogle Scholar
  7. 7.
    Song, J., Song, Y., Gu, C.W.: Thermodynamic analysis and performance optimization of an organic rankine cycle (ORC) waste heat recovery system for marine diesel engines. Energy 82, 976–985 (2015)CrossRefGoogle Scholar
  8. 8.
    Yu, G., Shu, G., Tian, H., et al.: Simulation and thermodynamic analysis of a bottoming organic rankine cycle (ORC) of diesel engine (DE). Energy 51(9), 281–290 (2013)CrossRefGoogle Scholar
  9. 9.
    Shu, G., Liu, L., Tian, H., et al.: Analysis of regenerative dual-loop organic rankine cycles (DORCs) used in engine waste heat recovery. Energy Convers. Manag. 76, 234–243 (2013)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.School of Mechanical EngineeringTianjin Polytechnic UniversityTianjinChina

Personalised recommendations