Dear Colleagues,

In the past few years, more and more interest has been attracted by renewable smart energy grids. This technology promises to suitably address issues related to the environmental impact of the building sector, by supplying energy vectors with a limited environmental impact and primary energy consumption. On the other hand, the selection of the optimal layout, operating strategies, and component design parameters is extremely complex, considering the requirements in terms of grid thermal balancing and management. In this framework, this Special Issue aims to collect recent works and research dealing with thermodynamic and heat transfer analyses of smart energy grids that are also powered by renewable energy sources.

The papers included in this Special Issue will focus on the thermodynamic and energy analyses of the components/devices included in the grid and on the grid as a whole. Studies should present findings improving the thermal stability of smart energy grids. Moreover, papers may also focus on computational fluid dynamics analysis and/or stationary and dynamic simulations of specific components included in the grids (e.g., ground heat exchanger, novel heat exchangers, or thermal storages). Special attention will also be paid to the analysis of the thermal management of electrochemical storage systems, including in the grid, in order to improve the electrical stability.

Papers in the relevant area of smart energy grids, including, but not limited to, the following topics, are invited:

• Thermal analysis of district heating and cooling networks
• Conventional and advanced thermal storage systems
• Thermal analysis of the piping systems of district heating and cooling networks
• Dynamic and thermodynamic analysis of lithium-ion battery cooling and heat recovery devices
• Seasonal thermal energy storages for fourth and fifth generation DHC
• Numerical and thermal analysis of ground source heat exchangers and ground heat pumps exploiting low enthalpy energy sources
• Geothermal energy
• Phase change thermal energy storage systems.
• Thermodynamic and dynamic analysis of control strategies improving the thermal energy performance of smart energy grids
• Development of novel and suitable strategies or devices in order to improve the thermal balance of the grid by mitigating the misalignment between renewable thermal energy production and demand
• CFD analysis of the components included in the grids.

Prof. Dr. Francesco Calise
Prof. Dr. Massimo Dentice D'Accadia
Dr. Maria Vicidomini
Dr. Francesco Cappiello
Guest Editors

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