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Combining pinch analysis and superstructure optimization for easier design of sCO2 power cycles

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Listed:
  • Panarioux, Clément
  • Privat, Romain
  • Piña-Martínez, Andrés
  • Neveux, Thibaut
  • Commenge, Jean-Marc
  • Jaubert, Jean-Noël

Abstract

Superstructure optimization provides a systematic framework for identifying high-efficiency energy systems, but its application to power cycles remains challenging because explicit representation of integrated heat exchangers (IHXs) introduces strong nonlinear couplings and feasibility constraints. In superstructure-based cycle optimization, maximizing cycle efficiency requires evaluating the heat demand of each candidate topology. Instead of embedding thermal integrations within the superstructure, the proposed approach uses pinch-based energy targeting to estimate the minimum heat requirement independently of cycle topology, avoiding additional nonlinear constraints.

Suggested Citation

  • Panarioux, Clément & Privat, Romain & Piña-Martínez, Andrés & Neveux, Thibaut & Commenge, Jean-Marc & Jaubert, Jean-Noël, 2026. "Combining pinch analysis and superstructure optimization for easier design of sCO2 power cycles," Energy, Elsevier, vol. 359(C).
    • Handle: RePEc:eee:energy:v:359:y:2026:i:c:s0360544226015574
    DOI: 10.1016/j.energy.2026.141451
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