Cooling through barocaloric effect: A review of the state of the art up to 2022

Cirillo, Luca; Greco, Adriana; Masselli, Claudia

doi:10.1016/j.tsep.2022.101380

Cited by 28 publications

(18 citation statements)

References 92 publications

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“…σAM and σMA do not have the same value because of the hysteresis that characterizes the AM and MA transformation. Since these two phase changes are affected by hysteresis, consequently four are the temperatures characterizing them: Af, As, Mf, Ms that represent the final and the starting temperatures into which the SMA has an austenite or martensite nature [26].…”

Section: Elastocaloric Effect and Reference Thermodynamical Cycle For...mentioning

confidence: 99%

“…Anyhow, all the theoretical and numerical analysis carried out so far have given very encouraging results, demonstrating the possibility of large energy savings (from 30% to 60%) compared to traditional technologies. In the last decade, there was a progressive interest toward caloric refrigeration technologies, in particular toward the EC one, asserted to be the real breakthrough Non-Vapor-Compression technology [26], because of the colossal ΔTad induced by the deformation of a SMA by means of mechanical stress. Nowadays, research on EC cooling can be divided into three areas: a) the research of promising eCMs provided of giant temperature changes at room temperature and sufficiently long fatigue life; b) the development of smart and versatile models to operate in parallel with the experimental field to the purpose of optimizing the performances; c) the realization of novel and competitive experimental devices.…”

Section: State Of the Art Of The Elastoclaoric Technologymentioning

confidence: 99%

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CHECK TEMPERATURE: A Small-Scale Elastocaloric Device for the Cooling of the Electronic Circuits

Cirillo¹,

Greco²,

Masselli³

2022

IJHT

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Elastocaloric is a technology to the class of solid-state cooling based on caloric-effects have attracted great interest in recent years, representing a new and viable alternative to vapour-compression. The physical phenomenon on which elastocaloric systems are based is elastocaloric effect: a physical-thermal phenomenon manifesting in some materials called shape memory alloys where, consequently to an adiabatic variation of the intensity of an external field, a temperature variation (ΔTad), occurs. If the intensity of the field is increasing, a temperature rise is observed in the elastocaloric material; conversely, to a decreasing intensity a temperature fall corresponds. Controlling the temperature of electronic equipment is also essential and, currently, there are not elastocaloric devices specifically addressed to this application. In this context CHECK TEMPERATURE (acronym of “Controlling the Heating of Electronic Circuits: a Key-approach Through Elastocaloric Materials in a Prototype Employing them as Refrigerants of an AcTive Ultrasmall Refrigerator”) project was born: the main purpose of this project is to develop an elastocaloric device targeted on miniature scale for environmentally friendly cooling of electronic components. In this paper all the aspect concerning the development are described.

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Section: Elastocaloric Effect and Reference Thermodynamical Cycle For...mentioning

confidence: 99%

Section: State Of the Art Of The Elastoclaoric Technologymentioning

confidence: 99%

CHECK TEMPERATURE: A Small-Scale Elastocaloric Device for the Cooling of the Electronic Circuits

Cirillo¹,

Greco²,

Masselli³

2022

IJHT

Self Cite

View full text Add to dashboard Cite

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“…However, during thermal cycling many PCs display significant supercooling effects, manifested as thermal hysteresis, so that the heat absorption and rejection processes occur at significantly different temperatures on the heating leg and cooling leg [11]. This hysteresis is undesirable in BC applications as it increases the operational pressures required to leverage the large reversible entropy changes that occur during pressure-driven BC transitions [12,13]. Furthermore, since supercooling can be explained as a nucleation-driven process, the FOPT temperature is often subject to substantial variability [14,15].…”

Section: Introductionmentioning

confidence: 99%

Understanding variations of thermal hysteresis in barocaloric plastic crystal neopentyl glycol using correlative microscopy and calorimetry

Rendell-Bhatti,

Boldrin,

Dilshad

et al. 2024

J. Phys. Energy

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Plastic crystals (PCs) exhibit solid-solid order-disorder first-order phase transitions that are accompanied by large correlated thermal and volume changes. These characteristics make PCs promising barocaloric solid-state working bodies for heating and cooling applications. However, understanding the variation of transition temperatures and thermal hysteresis in PCs with cycling is critical if these materials are to replace traditional gaseous refrigerants. Here, for the archetypal barocaloric PC neopentyl glycol (NPG), we correlate microstructure obtained from scanning electron microscopy with local and total thermal changes at the phase transition from infra-red imaging and calorimetry, respectively. We outline an evolution in microstructure as NPG recrystallises during repeated thermal cycling through its solid-solid phase transition. The observed microstructural changes are correlated with spatially inhomogeneous heat transfer, yielding direct insight into the kinetics of the phase transition. Our results suggest that the interplay of these processes affects the undesirable thermal hysteresis and the nature of the kinetic steady-state microstructures that are stabilised during cycling between the ordered and disordered phases. These observations have implications for using NPG and other PCs as technologically relevant barocaloric materials and suggest ways in which the hysteresis in these types of materials may be modified.

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“…In particular, coupled spin systems appear as robust platforms for the development of the so-called quantum heat engines (QHEs) prototypes [18][19][20][21][22][23]30]. In this class of materials, low-dimensional molecular magnetic systems as quantum antiferromagnets [37][38][39][40][41][42][43][44][45][46][47] appear as promising platforms for quantum technologies [1,5]. In these advanced materials, intramolecular interactions are strong enough to suppress external and intermolecular interactions [41,43,44,48].…”

Section: Introductionmentioning

confidence: 99%

“…Metal complexes has been explored in the literature for several caloric applications through classical thermodynamic cycles [38][39][40]48]. In this scenario, this work analyzes the realization of a quantum Stirling engine whose working medium consists of a dinuclear metal complex in a d 9 electronic configuration.…”

Section: Introductionmentioning

confidence: 99%

Quantum Stirling engine based on dinuclear metal complexes

Cruz¹,

Sedehi²,

Anka³

et al. 2023

Quantum Sci. Technol.

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Low-dimensional metal complexes are versatile materials with tunable physical and chemical properties that make these systems promising platforms for caloric applications. In this context, this work proposes a quantum Stirling cycle based on a dinuclear metal complex as a working substance. The results show that the quantum cycle operational modes can be managed when considering the change in the magnetic coupling of the material and the temperature of the reservoirs. Moreover, magnetic susceptibility can be used to characterize the heat exchanges of each cycle step and, therefore, its performance. As a proof of concept, the efficiency of the heat engine is obtained from experimental susceptibility data. These results open doors for studying quantum thermodynamic cycles by using metal complexes; and further the development of emerging quantum technologies based on these advanced materials.

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Cooling through barocaloric effect: A review of the state of the art up to 2022

Cited by 28 publications

References 92 publications

CHECK TEMPERATURE: A Small-Scale Elastocaloric Device for the Cooling of the Electronic Circuits

CHECK TEMPERATURE: A Small-Scale Elastocaloric Device for the Cooling of the Electronic Circuits

Understanding variations of thermal hysteresis in barocaloric plastic crystal neopentyl glycol using correlative microscopy and calorimetry

Quantum Stirling engine based on dinuclear metal complexes

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