Advances in Organic Rankine Cycle and Heat Pump Systems for Thermal Efficiency Improvement

Dear Colleagues,

Organic Rankine cycles and heat pumps are important technologies for energy conservation and carbon reduction in the fields of industry, electricity, transportation, and buildings. Both technologies have been widely studied and applied in various energy system applications and planning scenarios, such as industrial waste heat utilization, power storage, vehicle thermal management, and building power supply and heating. However, system efficiency still needs to be further improved in practical applications. Fixing this issue will involve the system configuration design and control optimization, working fluid selection, performance enhancement of key components such as compressors, expanders, and heat exchangers.

This Special Issue aims to present the latest studies on system configuration, working fluid, device and control method for ORC and heat pump, as well as investigations on thermodynamic cycle, the thermal–physical properties of working fluid, heat and mass transfer, flow mechanics. Research scholars are sincerely invited to submit original research, reviews, and perspective articles on the topics of interest for publication including, but not limited to:

• Configuration design of high efficiency ORC and heat pump
• Preparation, optimization, selection of working fluids
• Thermodynamic and economic analyses of the systems
• Design of novel heat exchanger, compressor and expander
• Heat transfer control and enhancement of heat exchangers
• Single phase and multiphase flow controls of compressor and expander
• AI applications on the performance optimizations of the system and devices
• Smart fault detection and diagnosis of ORC and heat pump systems
• Advanced simulation and testing approaches

Dr. Panpan Song
Dr. Ran Tian
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.

• system design
• working fluid selection
• performance prediction
• heat transfer enhancement
• flow control
• intelligence algorithm applications
• fault detection
• simulation and test methods