Design and Optimization of High-Temperature Heat Pumps

Submission Deadline: 31 May 2026 View: 160 Submit to Special Issue

Guest Editors

Dr. Panteleimon Tzouganakis

Email: ptzouganakis@uniwa.gr

Affiliation: Department of Mechanical Engineering, University of West Attica, Athens, Greece

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Research Interests: high temperature heat pumps, renewable energy, thermal energy storage, modelling and optimization

Dr. Panagiotis Lykas

Email: plykas@mail.ntua.gr

Affiliation: School of Mechanical Engineering, National Technical University of Athens, Athens, 15780, Greece

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Research Interests: high temperature heat pumps, thermodynamics, energy production, renewable energy, energy storage, simulation, optimization

Assist. Prof. Evangelos Bellos

Email: bellose@uniwa.gr

Affiliation: Department of Mechanical Engineering, University of West Attica, Athens, Greece

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Research Interests: thermodynamics, power cycles, heat pumps, ORC, energy in buildings, industrial decarbonization

Summary

The transition toward low-carbon energy systems is driving rapid innovation in heating technologies. High Temperature Heat Pumps (HTHPs), capable of delivering heat above 150°C, are emerging as a key solution for decarbonizing industrial processes and district heating networks. Unlike conventional heat pumps, HTHPs can directly replace fossil-fuelled boilers in sectors such as food processing, chemicals, and paper production, where high-temperature heat is needed. Despite significant progress, challenges remain in working fluid selection, component design, efficiency enhancement, optimization, and system integration.

This Special Issue aims to bring together cutting-edge research and industrial developments in HTHPs to accelerate their deployment. It will serve as a platform for scientists and engineers to share insights into technological advancements, modelling techniques, experimental validations, and real-world applications. Moreover, the proposed research studies will be useful for industrial stakeholders to promote their decarbonization policies.

Suggested topics include:
· Novel working fluids and thermodynamic cycles
· Compressor and heat exchanger technologies
· System modelling, control, and optimization
· Industrial applications and case studies
· Integration with renewable energy sources and waste heat
· Life cycle assessment and techno-economic analysis

We welcome original research, reviews, and case studies that address scientific, technical, and practical aspects of HTHPs. This Special Issue will contribute to shaping a sustainable and efficient future for the thermal energy sector.

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