Giulia Righetti

On the use of latent thermal energy storage to cut the energy costs in space cooling: from lab to home

Gianluca Slaviero, Claudio Zilio, Giulia Righetti, Luca Doretti et autres

According to IEA report, about 37 Gton CO2 were estimated having been released in the atmosphere during 2019. A similar value was obtained for 2020. It is absolutely essential to reduce this figure, calling the researchers to focus on finding and developing …

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A Comparative Experimental Analysis of a Cold Latent Thermal Storage System Coupled with a Heat Pump/Air Conditioning Unit

Claudio Zilio, Giulia Righetti, Dario Guarda, Francesca Martelletto et autres

The decarbonization of residential cooling systems requires innovative solutions to overcome the mismatch between the renewable energy availability and demand. Integrating latent thermal energy storage (LTES) with heat pump/air conditioning (HP/AC) units can help balance energy use and enhance efficiency. However, the …

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Experimental investigation of high temperature organic phase change materials for waste heat recovery

Giulia Righetti, Dario Guarda, Luca Doretti, Claudio Zilio et autres

This paper compares the performance of two high temperature organic phase change materials during solid/liquid phase change to study the effects of 3D printed periodic structures in enhancing the heat transfer performance. The experimental results reveal that erythritol and an organic material, …

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LTES with PCM and metal foam in convergent and divergent shell and tube configurations assuming external heat loss

Renato Elpidio Plomitallo, Bernardo Buonomo, Oronzio Manca, Sergio Nardini et autres

Thermal energy storage (TES) systems have become highly relevant due to the need to cut carbon emissions, and one of the most promising TES systems is the latent heat one (LTES) based on phase change materials (PCMs). However, the low thermal conductivity …

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On the numerical simulation of a phase change material melting inside periodic structures: from validation to optimization

Dario Guarda, Michele Calati, Giulia Righetti, Claudio Zilio et autres

Nowadays, numerical models are considered powerful design tools, which are largely used in several engineering applications. When applied to heat transfer applications, they have already been shown to be reliable, especially in single phase systems. When considering two-phase heat transfer, and in …

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Experimental thermal analysis of an innovative heat sink coupled to a nanoemulsion

Giulia Righetti, Jorge Burgos, Leonor Hernández, Rosa Mondragón et autres

Abstract This work presents some new experimental measurements collected on a very innovative system proposed for electronic cooling. This setup combines a classical heat sink with a latent thermal storage. The storage material is a phase change nanoemulsion made of water and …

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Experimental investigation of the cooling performance of an additively manufactured prototype for nuclear fusion energy application

G. Del Favero, M. Bonesso, R. Dima, Luca Doretti et autres

Abstract Metal Additive Manufacturing (MAM) is a non-traditional technology recently introduced to manufacture multifunctional mechanical components. In fact, recent developments in Laser Powder Bed Fusion (LPBF) process have enabled the production of materials characterized by high density and high thermal conductivity properties, …

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Market-orientated solutions to increase thermal conductivity in latent thermal energy storage systems

Giulia Righetti, Claudio Zilio, Kamel Hooman, Simone Mancin

Among experts, it is well-known that the thermal conductivity of PCMs (phase change materials) is low hence a major limitation for their commercial application. This work proposes alternative, inexpensive, but nevertheless effective solutions to increase the average thermal conductivity of a PCM …

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Experimental analysis of a commercial size bio-based latent thermal energy storage for air conditioning

Giulia Righetti, Claudio Zilio, Dario Guarda, Domenico Feo et autres

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Experimental assessment of low temperature phase change materials (PCM) for refrigerating and air conditioning applications

Dario Guarda, Giulia Righetti, Giovanni A. Longo, Claudio Zilio et autres

Refrigeration, air conditioning and heat pump sector represents between 25% and 30% of the global consumption of electricity and this figure is expected to rapidly grow due to the current trend of electrification. To increase the efficiency of these systems or to …

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CFD analyses for the development of an innovative latent thermal energy storage for food transportation

Michele Calati, Giulia Righetti, Claudio Zilio, Kamel Hooman et autres

The transportation of perishable products is a crucial activity that must be carefully managed along the cold chain. The refrigerated transport aims at ensuring the suitable transportation conditions by maintaining the desired temperature level in the refrigerated compartment. Moreover, the carriage of …

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Market-Orientated Solutions to Increase Thermal Conductivity in Latent Thermal Energy Storage Systems

Giulia Righetti, Claudio Zilio, Kamel Hooman, Simone Mancin

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