Advanced search
1 file | 1.97 MB Add to list

Experimental results of a small-scale organic rankine cycle : steady state identification and application to off-design model validation

Steven Lecompte (UGent) , Sergei Gusev (UGent) , Bruno Vanslambrouck (UGent) and Michel De Paepe (UGent)
(2018) APPLIED ENERGY. 226. p.82-106
Author
Organization
Abstract
This paper presents experimental results from a prototype of an 11 kWe organic Rankine cycle (ORC). Special attention has been paid to detecting reliable steady state data points. This has been achieved by application of a novel steady state detection algorithm. This method also allows evaluating the performance of the sensors in relation to remaining steady state fluctuations. The reliability of the experimental data is evaluated by investigating the heat balances over the heat exchangers and through error propagation of the measurement uncertainties. In addition, the experimental data from the setup is used for validating an off-design ORC model. The proposed simulation model solely requires the pump and expander speed as inputs besides the given heat source and sink conditions while subcooling is assumed to be constant. The important dependent model outputs are the evaporation pressure, the condensation pressure and the working fluid mass flow rate. All three predicted outputs show a maximum deviation of less than ± 1% from the measured values. The modelled net power output deviates less than ± 2% from the measured values. In general, this is a satisfactory result that gives confidence in using these models in future off-design simulations.
Keywords
Organic Rankine cycle, Experimental, Off-design, Part-load, Modelling, Thermodynamics

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 1.97 MB

Citation

Please use this url to cite or link to this publication:

MLA
Lecompte, Steven, et al. “Experimental Results of a Small-Scale Organic Rankine Cycle : Steady State Identification and Application to off-Design Model Validation.” APPLIED ENERGY, vol. 226, ELSEVIER, 2018, pp. 82–106, doi:10.1016/j.apenergy.2018.05.103.
APA
Lecompte, S., Gusev, S., Vanslambrouck, B., & De Paepe, M. (2018). Experimental results of a small-scale organic rankine cycle : steady state identification and application to off-design model validation. APPLIED ENERGY, 226, 82–106. https://doi.org/10.1016/j.apenergy.2018.05.103
Chicago author-date
Lecompte, Steven, Sergei Gusev, Bruno Vanslambrouck, and Michel De Paepe. 2018. “Experimental Results of a Small-Scale Organic Rankine Cycle : Steady State Identification and Application to off-Design Model Validation.” APPLIED ENERGY 226: 82–106. https://doi.org/10.1016/j.apenergy.2018.05.103.
Chicago author-date (all authors)
Lecompte, Steven, Sergei Gusev, Bruno Vanslambrouck, and Michel De Paepe. 2018. “Experimental Results of a Small-Scale Organic Rankine Cycle : Steady State Identification and Application to off-Design Model Validation.” APPLIED ENERGY 226: 82–106. doi:10.1016/j.apenergy.2018.05.103.
Vancouver
1.
Lecompte S, Gusev S, Vanslambrouck B, De Paepe M. Experimental results of a small-scale organic rankine cycle : steady state identification and application to off-design model validation. APPLIED ENERGY. 2018;226:82–106.
IEEE
[1]
S. Lecompte, S. Gusev, B. Vanslambrouck, and M. De Paepe, “Experimental results of a small-scale organic rankine cycle : steady state identification and application to off-design model validation,” APPLIED ENERGY, vol. 226, pp. 82–106, 2018.
@article{8563905,
  abstract     = {{This paper presents experimental results from a prototype of an 11 kWe organic Rankine cycle (ORC). Special attention has been paid to detecting reliable steady state data points. This has been achieved by application of a novel steady state detection algorithm. This method also allows evaluating the performance of the sensors in relation to remaining steady state fluctuations. The reliability of the experimental data is evaluated by investigating the heat balances over the heat exchangers and through error propagation of the measurement uncertainties. In addition, the experimental data from the setup is used for validating an off-design ORC model.
The proposed simulation model solely requires the pump and expander speed as inputs besides the given heat source and sink conditions while subcooling is assumed to be constant. The important dependent model outputs are the evaporation pressure, the condensation pressure and the working fluid mass flow rate. All three predicted outputs show a maximum deviation of less than ± 1% from the measured values. The modelled net power output deviates less than ± 2% from the measured values. In general, this is a satisfactory result that gives confidence in
using these models in future off-design simulations.}},
  author       = {{Lecompte, Steven and Gusev, Sergei and Vanslambrouck, Bruno and De Paepe, Michel}},
  issn         = {{0306-2619}},
  journal      = {{APPLIED ENERGY}},
  keywords     = {{Organic Rankine cycle,Experimental,Off-design,Part-load,Modelling,Thermodynamics}},
  language     = {{eng}},
  pages        = {{82--106}},
  publisher    = {{ELSEVIER}},
  title        = {{Experimental results of a small-scale organic rankine cycle : steady state identification and application to off-design model validation}},
  url          = {{http://doi.org/10.1016/j.apenergy.2018.05.103}},
  volume       = {{226}},
  year         = {{2018}},
}

Altmetric
View in Altmetric
Web of Science
Times cited: