Design of a hydraulically driven compressive elastocaloric cooling system

Qian, Suxin; Geng, Yunlong; Wang, Yi; Muehlbauer, Jan; Ling, Jiazhen; Hwang, Yunho; Radermacher, Reinhard; Takeuchi, Ichiro

doi:10.1080/23744731.2016.1171630

Cited by 104 publications

(47 citation statements)

References 12 publications

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“…One concept relies on the heat transfer during mechanical contact between elastocaloric SMA films and solid elements representing the heat sink and source of the device . The second concept makes use of the heat transfer between elastocaloric SMA films and a heat transfer fluid . The latter concept includes the possibility for active regeneration .…”

Section: Engineering Of Sma Film‐based Cooling Devicesmentioning

confidence: 99%

“…Qian et al. engineered and investigated a compression‐driven demonstrator that makes use of an HTF and a complex fluidic system with an additional fluid cycle for heat regeneration . Tušek and Engelbrecht et al.…”

Section: Engineering Of Sma Film‐based Cooling Devicesmentioning

confidence: 99%

“…[18,22,23] Thes econd conceptm akes use of the heat transferb etween elastocaloric SMA films and ah eat transfer fluid. [19,52] Thel atter concept includes the possibility for active regeneration. [20] In the following,d emonstrators will be presented for both concepts using free-standing SMA films as the elastocaloric materiali nt he device.A sthe performance of elastocaloric coolingd evicesi sh ighly influenced by the size,f irst the scaling of elastocaloric devices is analyzed.…”

Section: Outlook Elastocaloric Materialsmentioning

confidence: 99%

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Elastocaloric Cooling on the Miniature Scale: A Review on Materials and Device Engineering

Bruederlin

Bumke²,

Chluba³

et al. 2018

Energy Tech

104

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This Review covers the fundamentals of operation and scaling of elastocaloric cooling devices as well as current developments of elastocaloric shape‐memory alloy (SMA) films and the engineering of SMA film‐based cooling devices. Sputter‐deposited TiNiCuCo alloys showing ultra‐low fatigue enable unique functional properties such as tailored transformation temperature gradients. Two substantially different concepts for the development of elastocaloric cooling demonstrators are discussed. One concept relies on heat transfer by mechanical contact between the elastocaloric SMA film and solid heat sink and source elements. The second concept makes use of the heat transfer between the elastocaloric SMA film and a heat transfer fluid, including the advanced technology of active regeneration. Demonstrators based on a single SMA film reach device temperature spans of 14 K and a high specific cooling power of up to 18 W g−1. The performance characteristics are compared with other solid‐state caloric cooling technologies.

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Section: Engineering Of Sma Film‐based Cooling Devicesmentioning

confidence: 99%

Section: Engineering Of Sma Film‐based Cooling Devicesmentioning

confidence: 99%

Section: Outlook Elastocaloric Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Elastocaloric Cooling on the Miniature Scale: A Review on Materials and Device Engineering

Bruederlin

Bumke²,

Chluba³

et al. 2018

Energy Tech

104

View full text Add to dashboard Cite

show abstract

“…The performance of a ferroic cooling system significantly depends on the properties of the employed SMA . A good understanding of the material behavior is required for the design of elastocaloric processes and applications, as well as for the development of new material compositions which exhibit superior cooling performance.…”

Section: State‐of‐the‐art Elastocaloric Coolingmentioning

confidence: 99%

“…Qian et al . develop an elastocaloric cooling demonstrator based on compression‐loaded SMA tube packets surrounded by a fluid.…”

Section: State‐of‐the‐art Elastocaloric Coolingmentioning

confidence: 99%

NiTi‐Based Elastocaloric Cooling on the Macroscale: From Basic Concepts to Realization

et al. 2018

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Solid‐state cooling is an environmentally friendly, no global warming potential alternative to vapor compression‐based systems. Elastocaloric cooling based on NiTi shape memory alloys exhibits excellent cooling capabilities. Due to the high specific latent heats activated by mechanical loading/unloading, large temperature changes can be generated in the material. The small required work input enables a high coefficient of performance. An overview of elastocaloric cooling from basic principles, such as elastocaloric cooling cycles, material characterization, modeling, and optimization, to the design of elastocaloric cooling devices is presented. Current work performed within the DFG (Deutsche Forschungsgemeinschaft) Priority Program SPP 1599 “Ferroic Cooling”, which is focused on the development and realization of a continuously operating elastocaloric cooling device, is highlighted. The cooling device operates in a rotatory mode with wires under tensile loading. The design allows maximization of cooling power by suitable wire diameter scaling as well as efficiency optimization by implementing a novel drive concept. Finally, computer‐aided design (CAD) models of the discussed solid‐state air cooling device are presented.

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Materials with Giant Mechanocaloric Effects: Cooling by Strength

2016

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The search for materials with large caloric effects has become a major challenge in material science due to their potential in developing near room-temperature solid-state cooling devices, which are both efficient and clean, and that can successfully replace present refrigeration technologies. There are three main families of caloric materials: magnetocaloric, electrocaloric, and mechanocaloric. While magnetocaloric and electrocaloric materials have been studied intensively in the last few decades, mechanocaloric materials are only very recently receiving a great deal of attention. The mechanocaloric effect refers to the reversible thermal response of a solid when subjected to an external mechanical field, and encompasses both the elastocaloric effect, corresponding to a uniaxial force, and the barocaloric effect, which corresponds to the response to hydrostatic pressure. Here, the state of the art in giant mechanocaloric effects is reviewed and a critical analysis of the thermodynamic quantities that characterize the major families of barocaloric and elastocaloric materials is provided. Finally perspectives for further development in this area are given.

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Design of a hydraulically driven compressive elastocaloric cooling system

Cited by 104 publications

References 12 publications

Elastocaloric Cooling on the Miniature Scale: A Review on Materials and Device Engineering

Elastocaloric Cooling on the Miniature Scale: A Review on Materials and Device Engineering

NiTi‐Based Elastocaloric Cooling on the Macroscale: From Basic Concepts to Realization

Materials with Giant Mechanocaloric Effects: Cooling by Strength

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