High-Efficiency Thermal-Storage Devices and Systems

Dear Colleagues,

Activities aimed at improving the operating conditions and increasing the energy efficiency of devices and systems applied for energy conversion have become one of the most important research topics related to modern power engineering. Thermal energy storage devices (TES-D) and systems (TES-S) are considered possible solutions for storing thermal energy and improving the energy efficiency and operating conditions for different energy systems utilizing various fuels as well as alternative energy sources (i.e., renewable and waste energies), such as solar collectors or organic Rankine cycle (ORC) systems. The design of TES-S and TES-D is, to some extent, similar to the design of classical heat exchangers and regenerators. However, the design and implementation of highly efficient TES-D and TES-S is challenging. There are many scientific issues related to the design and optimization of the system configuration, selection of heat-storage materials and working substances. Therefore, there is a need for continuous progress in modeling, experimental and optimization studies related to TES-S aimed at obtaining high storage and energy-conversion efficiency. Detailed analysis related to different physical processes that form the basis of TES-D and TES-S operation should also be conducted in order to achieve the final goal of high efficiency.

This Special Issue aims to publish high-quality research and review papers related to different fields of science connected with thermal-energy-storage devices and systems.

The topics include but are not limited to:

• Experimental and modeling activities related to thermal-energy storage devices and systems;
• The design and optimization of thermal-energy-storage devices and systems;
• Thermal-energy-storage materials;
• Renewable- and waste-energy harvesting with the application of thermal-energy-storage devices and systems;
• Numerical modeling;
• Ecological aspects related to thermal-energy storage.

Prof. Dr. Piotr Kolasiński
Prof. Dr. Magdalena Nemś
Guest Editors

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