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High-Temperature Heat Pumps (HTHP) and Organic Rankine Cycle (ORC) for Waste Heat Revalorization in the Industrial Sector

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

Deadline for manuscript submissions: closed (30 September 2020) | Viewed by 3432

Special Issue Editors

Dr. Adrián Mota Babiloni

E-Mail Website
Guest Editor
ISTENER Research Group, Department of Mechanical Engineering and Construction, Universitat Jaume I, E12071 Castelló de la Plana, Spain
Interests: refrigeration; heat pumps; low global warming potential refrigerants; organic Rankine cycle; energy conversion; phase change materials; energy efficiency
Special Issues, Collections and Topics in MDPI journals
Prof. Joaquín Navarro-Esbrí

E-Mail Website
Guest Editor
ISTENER Research Group, Department of Mechanical Engineering and Construction, Campus de Riu Sec s/n, University Jaume I, E12071 Castellón, Spain
Interests: high-temperature heat pumps (HTHP); organic rankine cycle (ORC); waste heat recovery; low GWP refrigerants
Prof. Dr. Vincent Lemort

grade E-Mail Website
Guest Editor
Thermodynamics Laboratory, Aerospace and Mechanical Engineering Department, University of Liege, Allée de La Découverte 17, B4000 Liège, Belgium
Interests: energy engineering; applied thermodynamics, HVAC; energy performance of buildings; thermal management of vehicles; combined heat and power (CHP); heat recovery; heat pumps; Organic Rankine Cycle (ORC); energy systems modelling

Special Issue Information

Dear Colleagues,

The industrial sector is a top contributor to climate change because of its high share of electricity and fossil fuel consumption in comparison with other applications. Of the other energy-efficiency methods, waste heat recovery and revalorization are important measures that can decrement the industrial impact on the environment. In recent years, a reduced number of technologies have been proposed for waste heat revalorization, and significant research is being performed in order to discover more reliable and economic systems to be extended to many different solutions. Among them, Organic Rankine Cycles (ORC) is being one of the most popular solutions for clean electricity generation using low grade heat; high-temperature heat pumps (HTHPs) have also been proposed to increment the temperature level of a flow in order to be reutilized in a process, hence substituting fossil fuel burners. Both technologies, despite being exciting today, still present a broad field for exploration in terms of working fluids (low global warming potential fluids), more efficient expanders/compressors, greater economic feasibility, more compact heat exchangers, advanced configurations, or the combination of them in connected or reversible cycles. Different optimum solutions in order to maximize the electricity generated or the heating upgrade can be reached, depending on the specific industrial application and the operating conditions. This Special Issue is intended to gather and present the most recent developments in HTHPs and ORCs applied to waste heat revalorization for the cleaner industry of the future.

Dr. Adrián Mota Babiloni
Prof. Joaquín Navarro-Esbrí
Prof. Vincent Lemort
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

  • High-Temperature Heat Pumps (HTHP)
  • Organic Rankine cycle (ORC)
  • Global Warming Potential, Industrial Processes
  • Heat Recovery, Energy Efficiency
  • Climate Change
  • Low-Temperature Waste Heat
  • Reversible Cycle

Published Papers (1 paper)

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Research

22 pages, 5398 KiB  
Article
Economic and Exergo-Advance Analysis of a Waste Heat Recovery System Based on Regenerative Organic Rankine Cycle under Organic Fluids with Low Global Warming Potential
by Guillermo Valencia Ochoa, Cesar Isaza-Roldan and Jorge Duarte Forero
Energies 2020, 13(6), 1317; https://doi.org/10.3390/en13061317 - 12 Mar 2020
Cited by 47 | Viewed by 2750
Abstract
The waste heat recovery system (WHRS) is a good alternative to provide a solution to the waste energy emanated in the exhaust gases of the internal combustion engine (ICE). Therefore, it is useful to carry out research to improve the thermal efficiency of [...] Read more.
The waste heat recovery system (WHRS) is a good alternative to provide a solution to the waste energy emanated in the exhaust gases of the internal combustion engine (ICE). Therefore, it is useful to carry out research to improve the thermal efficiency of the ICE through a WHRS based on the organic Rankine cycle (ORC), since this type of system takes advantage of the heat of the exhaust gases to generate electrical energy. The organic working fluid selection was developed according to environmental criteria, operational parameters, thermodynamic conditions of the gas engine, and investment costs. An economic analysis is presented for the systems operating with three selected working fluids: toluene, acetone, and heptane, considering the main costs involved in the design and operation of the thermal system. Furthermore, an exergo-advanced study is presented on the WHRS based on ORC integrated to the ICE, which is a Jenbacher JMS 612 GS-N of 2 MW power fueled with natural gas. This advanced exergetic analysis allowed us to know the opportunities for improvement of the equipment and the increase in the thermodynamic performance of the ICE. The results show that when using acetone as the organic working fluid, there is a greater tendency of improvement of endogenous character in Pump 2 of around 80%. When using heptane it was manifested that for the turbine there are near to 77% opportunities for improvement, and the use of toluene in the turbine gave a rate of improvement of 70%. Finally, some case studies are presented to study the effect of condensation temperature, the pinch point temperature in the evaporator, and the pressure ratio on the direct, indirect, and fixed investment costs, where the higher investment costs were presented with the acetone, and lower costs when using the toluene as working fluid. Full article
(This article belongs to the Special Issue High-Temperature Heat Pumps (HTHP) and Organic Rankine Cycle (ORC) for Waste Heat Revalorization in the Industrial Sector)
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