Abstract
One of the most significant problem with technology development is transferring of large heat fluxes, which requires constant heat transfer temperature (in the specified temperature range). This problem concern mainly the nuclear energetics, space technologies, military technologies and most of all electronics containing integrated circuits with very large scale of integrations. Intensive heat transfer and thermal energy storage are possible by the use of phase change materials (PCMs). In the paper there are presented preliminary results of research on the use of liquid-gas (L-G PCMs) and solid-solid phase change materials (S-S PCMs). For L-G PCMs the boiling characteristics were determined by increasing and decreasing the heat flux, which for certain sets of structural parameters of the heating surface and the physical properties of the liquid induce a variety of forms of transitional phenomena. Thermal energy storage is much more effective when using PCMs than sensible heat.
Highlights
Energy storage is a constantly evolving issue
Many research studies have focused on this subject. Great interest in this topic come from series of advantages and possibilities associated with energy storage such as: - reduction of energy consumption, - reduction o energy cost, - rationalization of renewable energy sources systems
One of the energy storage method based on latent heat storage is the use of phase change materials (PCMs)
Summary
Energy storage is a constantly evolving issue. Many research studies have focused on this subject. Second type relates to thermal energy storage for longer period of time. Thermal energy storage can take place with use of chemical methods (chemical or photochemical transitions) or thermal methods (latent and sensible heat storage) [1,2]. Thermal energy storage with the use of chemical transition consists in absorbing and releasing of heat in reversible chemical reaction. One of the energy storage method based on latent heat storage is the use of phase change materials (PCMs). Interest in solid-solid phase change materials (S-S PCMs) has increased strongly On the Department of Thermal and Fluid Flow Machines (KCiMP) at Faculty of Energy and Fuels at AGH University of Science and Technology work on two types of phase change materials: liquid-gas and solidsolid is carried out. There is a copper sample with implemented structure soldered to the core
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