energies-logo

Journal Browser

Journal Browser

Advances in Organic Rankine Cycle System and Thermal Storage System

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "J: Thermal Management".

Deadline for manuscript submissions: closed (27 February 2024) | Viewed by 1929

Special Issue Editors


E-Mail Website
Guest Editor
Department of Natural Resources Management & Agricultural Engineering, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
Interests: low-temperature heat-to-power conversion with ORC; solar sub-critical ORC prototypes (power generation and desalination) design, manufacturing and testing; volumetric expanders and heat exchangers design, manufacturing and testing; super-critical, TransCritical prototypes design manufacturing and testing; trilateral flash cycle
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Mechanical Engineering, University of West Attica, 12244 Athens, Greece
Interests: applied thermodynamics; power generation cycles; heat-to-power conversion; supercritical CO2; heat transfer; cycles innovation; fluid mechanics; heat exchangers design
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, there is a growing need to recover wasted heat and improve the efficiency of power generation systems, given the extent to which since environmental and financial limits and crises impose energy consumption reduction on a global level. organic Rankine cycle is considered to be the most promising thermodynamic cycle for low-temperature rejected heat and its conversion into power, a process of much of research interest. Moreover, the thermal storage systems can accelerate the largescale employment of heat-to-power conversion engines, leading to larger operation times, the development of polygeneration systems and finally increased energy savings and reduced CO2 footprint. 

The main scope of this Special Issue is to present the current state-of-the art in organic Rankine cycles and thermal energy systems. This includes CO2 power cycles and other innovative power generation cycles, which may lead to next-generation power production systems. This Special Issue will contribute a comprehensive forum for research ideas, including both simulations and experimental studies on a wide range of topics, such as the following:

  • Organic Rankine cycles modelling concepts and control
  • Power conversion cycles
  • Supercritical CO2 power cycle
  • Trilateral flash cycle
  • Thermal energy storage systems
  • Innovative methods/materials for energy storage
  • Components design and modelling
  • Combined heat and power generation applications

Dr. Dimitris S. Manolakos
Dr. Apostolos Gkountas
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 100 words) can be sent to the Editorial Office for announcement on this website.

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. Energies is an international peer-reviewed open access semimonthly 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

  • ORC engine
  • waste heat recovery power conversion
  • energy storage
  • phase change
  • techno-economic analysis
  • combined cycles
  • cogeneration

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.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

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

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

20 pages, 7767 KiB  
Article
Development of 180 kW Organic Rankine Cycle (ORC) with a High-Efficiency Two-Stage Axial Turbine
by Jung-Bo Sim, Se-Jin Yook and Young Won Kim
Energies 2023, 16(20), 7112; https://doi.org/10.3390/en16207112 - 16 Oct 2023
Cited by 1 | Viewed by 1561
Abstract
The design of turbines used to convert thermal energy into electrical energy in an organic Rankine cycle (ORC) is crucial. A high-speed turbine requires high-performance bearings, which increases turbine manufacturing costs. In this study, a high-efficiency two-stage axial turbine at a low rotational [...] Read more.
The design of turbines used to convert thermal energy into electrical energy in an organic Rankine cycle (ORC) is crucial. A high-speed turbine requires high-performance bearings, which increases turbine manufacturing costs. In this study, a high-efficiency two-stage axial turbine at a low rotational speed was developed, and the ORC performance was presented. We designed a 180-kW axial turbine of 12,000 rpm. To increase turbine efficiency, the number of turbine stages was set to two, and turbine blades were designed to reduce pressure losses. One-dimensional design parameters of blades that minimized the total pressure loss were selected using an in-house code based on a generalized reduced gradient (GRG) nonlinear algorithm. Three-dimensional turbine blade modeling and numerical analysis were performed using commercial software. The total-to-static isentropic efficiency and output of the two-stage axial turbine were predicted to be 85.1% and 176 kW, respectively. ORC performance was assessed using the predicted turbine performance results. Assuming the temperature of the condenser outlet working fluid to be 25 °C, the ORC thermal efficiency and exergy efficiency were found to be 7.40% and 34.49%, respectively. Our findings highlight the applicability of various rotational speeds and number of stages for an axial turbine in an ORC. Full article
(This article belongs to the Special Issue Advances in Organic Rankine Cycle System and Thermal Storage System)
Show Figures

Figure 1

Back to TopTop