Modelling and economic assessment of organic Rankine cycle integration into an inter-plant heat exchanger network

La Verne Ramir D.T. Certeza, Aloisius Rabata Purnama, Aniq Ahsan, Jonathan S.C. Low and Wen F. Lu

Applied Energy, 2025, vol. 394, issue C, No S0306261925008566

Abstract: Establishing energy-based industrial symbiosis networks (EISNs) through inter-plant heat integration is a collaborative energy efficiency initiative to reduce industrial energy consumption. Its benefits can be improved through organic Rankine cycle (ORC) integration into an inter-plant heat exchanger network (HEN) to generate electricity. In this study, a novel nonlinear programming (NLP) model is formulated for inter-plant HEN-ORC integration optimization. It improves the computational performance of conventional mixed-integer nonlinear programming (MINLP) models and the accuracy of total EISN cost computation by using chemical engineering plant cost indices (CEPCIs) to adjust capital cost values to a common time. Furthermore, this study also proposes an EISN economic viability assessment methodology based on Shapley value computation and based on social welfare, Rawlsian welfare, and Nash allocation schemes to determine the new individual cost of each plant if it joins an EISN. The model and methodology have been applied to two case studies. Results reveal that Nash allocation can minimize the total EISN cost while maximizing the savings attained by each plant, thereby making it the superior cost allocation method among the four. Furthermore, results show that inter-plant HEN-ORC integration can increase an EISN's economic viability. However, this depends on whether there is a significant difference between the cold and hot utility prices. Lastly, results indicate that limiting the number of superstructure stages to just one can result in a more realistically implementable EISN configuration. Overall, the proposed model and methodology have been demonstrated to yield pragmatic insights on the cost-effectiveness of inter-plant HEN-ORC integration.

Keywords: Heat integration; Industrial symbiosis; Mathematical programming; Waste heat recovery; Organic Rankine cycle; Optimal cost allocation (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261925008566
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:394:y:2025:i:c:s0306261925008566

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2025.126126

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().