Integrated Flue‐Gas Heat Recovery for Optimized Steam and Power Generation Using Organic Rankine Cycle (ORC): A Technical and Economic Assessment
ABSTRACT Optimized power‐generation flowsheets incorporating the organic Rankine cycle (ORC) were developed and simulated in Aspen HYSYS and Aspen Capital Cost Estimator for four energy‐recovery configurations. The study evaluates four cases: Case 1 involves steam production and power generation via Gas‐Turbine Generators and ORC systems. Case 2 shows similar performance. Case 3 achieves the highest power output, with a 10% increase, a thermal efficiency of 29.68%, and an exergy efficiency of 17.5%. Case 4 uses an optimized ORC package for simultaneous steam and power production, demonstrating the best technical and economic performance. Case 4 also delivers both electricity and steam at 7354 kg/h. The total project costs for Cases 1–4 are 1.02 × 10⁷, 6.64 × 10⁶, 1.14 × 10⁷, and 8.07 × 10⁶ USD, respectively, highlighting the technical and economic advantages of the proposed ORC configurations.
Authors
- Vahid Pirouzfar (ORCID: https://orcid.org/0000-0002-2862-008X)
- Anashe Aghajani
- Chia‐Hung Su
Institutions
- Ming Chi University of Technology (TW)
- Islamic Azad University South Tehran Branch (IR)
Publication Details
- Journal
- Energy Science & Engineering
- Published
- 2026-03-02
- DOI
- https://doi.org/10.1002/ese3.70491
- Primary Topic
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Type
- article
- Field-Weighted Citation Impact
- 0.00