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Performance analysis of an organic rankine cycle for integration in a Carnot battery

Aditya Pillai, Alihan Kaya (UGent) , Michel De Paepe (UGent) and Steven Lecompte (UGent)
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Abstract
The purpose of this study is to report the challenges associated with the design of an ORC setup to be connected to a power-heat-power system, also known as a Carnot battery. Power is converted to heat using a high-temperature heat pump (HT-HP) and is stored using a separate sensible and latent heat storage system, consisting respectively of a phase change material (PCM) i.e., molten salt and pressurized hot water. Simulations are carried out in Python and Engineering Equation Solver (EES) to investigate the effect of the two storage systems on the performance of the ORC considering different working fluids.Working fluids that have low global warming potential (GWP) and zero ozone depleting potential (ODP) are considered. Minimizing irreversibilities during pre-heating and evaporating is of key importance.The identified working fluids of interest are HFO-1336mzz(E) & R1234ze(Z). The exergy destruction in the ORC increases by 73% if R1234ze(Z) is used as the working fluid. Finally, based on the acquired results, a preliminary test-rig is developed with a volumetric piston expander. The net power output from the test-rig is estimated to be approximately 10 kWe.

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MLA
Pillai, Aditya, et al. “Performance Analysis of an Organic Rankine Cycle for Integration in a Carnot Battery.” Proceedings of the 5th International Seminar on ORC Power Systems, edited by S. Karellas and E. Kakaras, The National Technical University of Athens (NTUA), 2019.
APA
Pillai, A., Kaya, A., De Paepe, M., & Lecompte, S. (2019). Performance analysis of an organic rankine cycle for integration in a Carnot battery. In S. Karellas & E. Kakaras (Eds.), Proceedings of the 5th International Seminar on ORC Power Systems. Athens, Greece: The National Technical University of Athens (NTUA).
Chicago author-date
Pillai, Aditya, Alihan Kaya, Michel De Paepe, and Steven Lecompte. 2019. “Performance Analysis of an Organic Rankine Cycle for Integration in a Carnot Battery.” In Proceedings of the 5th International Seminar on ORC Power Systems, edited by S. Karellas and E. Kakaras. The National Technical University of Athens (NTUA).
Chicago author-date (all authors)
Pillai, Aditya, Alihan Kaya, Michel De Paepe, and Steven Lecompte. 2019. “Performance Analysis of an Organic Rankine Cycle for Integration in a Carnot Battery.” In Proceedings of the 5th International Seminar on ORC Power Systems, ed by. S. Karellas and E. Kakaras. The National Technical University of Athens (NTUA).
Vancouver
1.
Pillai A, Kaya A, De Paepe M, Lecompte S. Performance analysis of an organic rankine cycle for integration in a Carnot battery. In: Karellas S, Kakaras E, editors. Proceedings of the 5th International Seminar on ORC Power Systems. The National Technical University of Athens (NTUA); 2019.
IEEE
[1]
A. Pillai, A. Kaya, M. De Paepe, and S. Lecompte, “Performance analysis of an organic rankine cycle for integration in a Carnot battery,” in Proceedings of the 5th International Seminar on ORC Power Systems, Athens, Greece, 2019.
@inproceedings{8630387,
  abstract     = {{The purpose of this study is to report the challenges associated with the design of an ORC setup to be connected to a power-heat-power system, also known as a Carnot battery. Power is converted to heat using a high-temperature heat pump (HT-HP) and is stored using a separate sensible and latent heat storage system, consisting respectively of a phase change material (PCM) i.e., molten salt and pressurized hot water. Simulations are carried out in Python and Engineering Equation Solver (EES) to investigate the effect of the two storage systems on the performance of the ORC considering different working fluids.Working fluids that have low global warming potential (GWP) and zero ozone depleting potential (ODP) are considered. Minimizing irreversibilities during pre-heating and evaporating is of key importance.The identified working fluids of interest are HFO-1336mzz(E) & R1234ze(Z). The exergy destruction in the ORC increases by 73% if R1234ze(Z) is used as the working fluid. Finally, based on the acquired results, a preliminary test-rig is developed with a volumetric piston expander. The net power output from the test-rig is estimated to be approximately 10 kWe.}},
  articleno    = {{171}},
  author       = {{Pillai, Aditya and Kaya, Alihan and De Paepe, Michel and Lecompte, Steven}},
  booktitle    = {{Proceedings of the 5th International Seminar on ORC Power Systems}},
  editor       = {{Karellas, S. and Kakaras, E.}},
  isbn         = {{9789090320380}},
  language     = {{eng}},
  location     = {{Athens, Greece}},
  pages        = {{9}},
  publisher    = {{The National Technical University of Athens (NTUA)}},
  title        = {{Performance analysis of an organic rankine cycle for integration in a Carnot battery}},
  url          = {{https://www.orc2019.com/online/proceedings/documents/171.pdf}},
  year         = {{2019}},
}