Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
2.0
Journals
Entropy
Special Issues
Thermodynamic Optimization of Industrial Energy Systems, 2nd Edition
entropy-logo
Submit to Special Issue Submit Abstract to Special Issue Review for Entropy Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Thermodynamic Optimization of Industrial Energy Systems, 2nd Edition

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Thermodynamics".

Deadline for manuscript submissions: 31 January 2026 | Viewed by 209

Special Issue Editors

Dr. Daniel Flórez-Orrego

E-Mail Website
Guest Editor
Industrial Process and Energy Systems Engineering, École Polytechnique Fédérale de Lausanne EPFL, 1950 Sion, Valais, Switzerland
Interests: energy integration; process synthesis; optimization; environmental analysis; economic assessment
Special Issues, Collections and Topics in MDPI journals
Dr. Meire Ellen Ribeiro Domingos

E-Mail Website
Guest Editor
Industrial Process and Energy Systems Engineering, École Polytechnique Fédérale de Lausanne EPFL, 1950 Sion, Valais, Switzerland
Interests: biomass conversion; biofuel production; process simulation and integration; industrial symbiosis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The thermodynamic optimization of the industrial systems deals with the application of the thermodynamic principles to evaluate and improve the performance of those energy systems, from the component level up to the complete process synthesis and optimization of chemical plants. The energy integration (pinch method) and the exergy methods are among the most common thermodynamic methods used in the diagnosis and optimization of energy systems. Those methods help to identify the sources of thermodynamic inefficiency and allow proposing means for minimizing energy consumption, while reducing waste generation and, consequently, the environmental impact. Meanwhile, optimization methods aid in determining the best configuration among the vast number of options that satisfy the predefined objectives and restrictions using different mathematical and computational techniques. This Special Issue aims to bring together a comprehensive selection of recently developed techniques used to evaluate the performance of thermodynamic systems. It is also conceived to aim the spotlight at new approaches proposed to assess not only efficiency, but also sustainability and economic attractiveness as decision criteria for future energy systems.

Dr. Daniel Flórez-Orrego
Dr. Meire Ellen Ribeiro Domingos
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Entropy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • technoeconomic assessment
  • sustainability
  • industrial processes
  • optimization
  • energy integration

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Related Special Issue

Published Papers (1 paper)

Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

28 pages, 1673 KB  
Article
Optimization of Cryogenic Gas Separation Systems Based on Exergetic Analysis—The Claude–Heylandt Cycle for Oxygen Separation
by Dănuț-Cristian Urduza, Lavinia Grosu, Alexandru Serban, Adalia Andreea Percembli (Chelmuș) and Alexandru Dobrovicescu
Entropy 2026, 28(1), 125; https://doi.org/10.3390/e28010125 - 21 Jan 2026
Abstract
In cryogenic air liquefaction systems, a major share of the mechanical energy consumption is associated with exergy destruction caused by heat transfer in recuperative heat exchangers. This study investigated the exergetic optimization of cryogenic gas separation systems by focusing on the Claude–Heylandt cycle [...] Read more.
In cryogenic air liquefaction systems, a major share of the mechanical energy consumption is associated with exergy destruction caused by heat transfer in recuperative heat exchangers. This study investigated the exergetic optimization of cryogenic gas separation systems by focusing on the Claude–Heylandt cycle as an advanced structural modification of the classical Linde–Hampson scheme. An exergy-based analysis demonstrates that minimizing mechanical energy consumption requires a progressive reduction in the temperature difference between the hot forward stream and the cold returning stream toward the cold end of the heat exchanger. This condition was achieved by extracting a fraction of the high-pressure stream and expanding it in a parallel expander, thereby creating a controlled imbalance in the heat capacities between the two streams. The proposed configuration reduces the share of exergy destruction associated with heat transfer in the recuperative heat exchanger from 14% to 3.5%, leading to a fourfold increase in the exergetic efficiency, together with a 3.6-fold increase in the liquefied air fraction compared with the Linde–Hampson cycle operating under identical conditions. The effects of key decision parameters, including the compression pressure, imposed temperature differences, and expander inlet temperature, were systematically analyzed. The study was further extended by integrating an air separation column into the Claude–Heylandt cycle and optimizing its configuration based on entropy generation minimization. The optimal liquid-air feeding height and threshold number of rectification trays were identified, beyond which further structural complexity yielded no thermodynamic benefit. The results highlight the effectiveness of exergy-based optimization as a unified design criterion for both cryogenic liquefaction and separation processes. Full article
(This article belongs to the Special Issue Thermodynamic Optimization of Industrial Energy Systems, 2nd Edition)
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-1
Back to TopTop