Review of alternative cooling technologies

Brown, J. Steven; Domanski, Piotr A.

doi:10.1016/j.applthermaleng.2013.12.014

Cited by 242 publications

(85 citation statements)

References 30 publications

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“…EC has been suggested for miniature scale applications [21] and cryogenic applications may also pose opportunities for energy savings [30], but those are not discussed here. In order to enter the space cooling market an idealized temperature span for the elastocaloric cooler is from 10°C to 35°C [4] and for refrigeration the span can be considered from −10°C to 30°C [31], although the actual numbers can vary significantly based on application and geography. It should be noted that the elastocaloric system must operate over a larger temperature span than the span from ambient to the cooled space in order to allow an approach temperature for the heat exchangers.…”

Section: Challenges For Ecmentioning

confidence: 99%

“…Although there is a variety of cooling technologies, vapor compression has essentially 100% of the cooling market near room temperature, with thermoelectric (Peltier) coolers and Stirling cycles occupying a small market [4]. Vapor compression technology relies on the compression and expansion of a gaseous refrigerant and is proven for both stationary and transportation applications.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the large market for new cooling and refrigeration equipment and the potential to build more environmentally friendly cooling cycles, there is a large research effort to develop high-efficiency and environmentally friendly alternative cooling cycles for applications near room temperature, such as absorption, thermoacoustic, desiccant, thermoelectric and caloric cooling [4,7]. Caloric cooling is based on the change in temperature of a solid refrigerant when subjected to an external magnetic field (magnetocalorics), an electric field (electrocalorics), an applied pressure (barocalorics) or a uni-axial strain (elastocalorics) and each effect has been suggested for use in a thermodynamic cycle [8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Future prospects for elastocaloric devices

Engelbrecht

2019

J. Phys. Energy

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Elastocaloric cooling (EC) is an alternative cooling technology that has been identified as having the potential to be more efficient than vapor compression systems. It is based on the elastocaloric effect, which is a change in temperature coupled to an applied uniaxial strain in materials such as NiTi alloys. Although EC is a promising technology for energy savings in the future, there are still challenges to be addressed if it is to be commercially successful. This paper gives a summary of the state of the art and recent developments in the area as well as perspectives on the most important challenges that must be met to make the technology commercial.

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Section: Challenges For Ecmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Future prospects for elastocaloric devices

Engelbrecht

2019

J. Phys. Energy

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“…A study of the literature shows that gadolinium (Gd) metal and its alloys are widely accepted as the reference material in magnetocaloric refrigeration systems [1,2,3,4,5,6,7,8,9]. Among alternative cooling and near-room temperature refrigeration technologies, magnetic refrigeration has the highest level of current research activity, and is considered to hold some, but not imminent, promise for implementation as better magnetocaloric materials and other technical breakthroughs are needed to realize this promise [10,11,12,13,14,15]. …”

Section: Introductionmentioning

confidence: 99%

Microstructural Anisotropy of Magnetocaloric Gadolinium Cylinders: Effect on the Mechanical Properties of the Material

et al. 2016

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The development of advanced materials and technologies based on magnetocaloric Gd and its compounds requires an understanding of the dependency of mechanical properties on their underlying microstructure. Therefore, the aim of the study was to characterize microstructural inhomogeneities in the gadolinium that can be used in magnetocaloric refrigeration systems. Microstructures of magnetocaloric gadolinium cylinders were investigated by light microscopy and FE-SEM (Field Emission Scanning Electron Microscopy), EDS (Energy-dispersive X-ray Spectroscopy), and BSE (Back-scattered Electrons) in both the extrusion and the extrusion-transversal directions. XRD (X-ray Diffraction) analyses were performed to reveal the presence of calcium- and fluorine-based compounds. Metallographic characterization showed an oxidized and inhomogeneous microstructure of the cross-sections. The edges and the outer parts of the cylinders were oxidized more intensively on the surfaces directly exposed to the processing tools. Moreover, a significant morphological anisotropy of the non-metallic inclusions was observed. CaF inclusions act as active nucleation sites for internal oxidation. The non-metallic, Ca- and F-containing inclusions can be classified as complex calciumoxyfluorides. The solubility of Er and Yb in the CaF was negligible compared to the Gd matrix and/or the oxide phase. Lower mechanical properties of the material are a consequence of the lower structural integrity due to selective oxidation of surfaces and interfaces.

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“…In both TGS and CGS the exhaust heat recovered can be utilized for various heating application. Moreover, the recovered waste heat also requires capability for application for thermally activated equipment for space cooling such as absorption chillers, adsorption chiller, liquid and solid desiccant cooling as well as ejector cooling [21]. Absorption chillers are well developed and mature technologies in the cooling industry compared to other cooling option [22].…”

Section: Prime Movers and Waste Heat Recovery Technologiesmentioning

confidence: 99%

Review on Recent Development Micro Gas Turbine -Trigeneration System and Photovoltaic Based Hybrid Energy System

et al. 2016

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Abstract.Research on distributed power generation as an alternative method to the conventional power generation system continue to be developed to improve its commercialization capabilities. The cogeneration system and trigeneration system are technological improved alternatives in distributed generation where they offer enhancement and reliability in term of efficiency, emission performances and economic benefits. However, it is more feasible to implement the trigeneration system for most commercial and domestic distributed generations as the cooling demand is deliberately high compared to heating demand especially in hot and humid climate locations. Moreover, micro gas turbine is observed to be a beneficial prime mover in cogeneration and trigeneration system based on several criteria such as ability on acquiring high heat to power ratio characteristic as well as lower greenhouse gas emission. On the other hand, the role photovoltaic in building integrated system provides opportunities for renewable energy system engagement in trigeneration based distributed generation systems. This paper emphasize on summarizing the research work perform on cogeneration system or trigeneration system in hybrid mode with photovoltaic. There are also preceding sections on overviewing the state of art of cogeneration system and the trigeneration system as well as photovoltaic technologies in power generation.

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Review of alternative cooling technologies

Cited by 242 publications

References 30 publications

Future prospects for elastocaloric devices

Future prospects for elastocaloric devices

Microstructural Anisotropy of Magnetocaloric Gadolinium Cylinders: Effect on the Mechanical Properties of the Material

Review on Recent Development Micro Gas Turbine -Trigeneration System and Photovoltaic Based Hybrid Energy System

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