Heat switch technology for cryogenic thermal management

Shu, Q.S.; Demko, J. A.; Fesmire, James E.

doi:10.1088/1757-899x/278/1/012133

Cited by 23 publications

(18 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mechanically actuated gas‐gap thermal switches are mainly used in cryogenics and outer space applications. [ 10 ] They operate in the Knudsen flow regime where the mean free path of the working gas molecules is of the same order of magnitude as the gap size between the heat source and the heat sink. [ 10 ] In such switches, gas extraction is achieved through either passive or active gas pressure control.…”

Section: Fluidic Thermal Control Devicesmentioning

confidence: 99%

“…Thermal management is a common issue in several applications including cryogenics, [ 10–12 ] energy conversion, [ 13–15 ] caloric refrigeration, [ 16–18 ] microfluidics, [ 19–21 ] biology, chemistry, and pharmacy, [ 22–24 ] buildings, [ 25–28 ] outer space, [ 11,29,30 ] and sensor technologies. [ 31,32 ] Therefore, TCDs for these application areas are being studied theoretically and experimentally.…”

Section: Introductionmentioning

confidence: 99%

“…Shu et al. [ 10 ] and Kimball et al. [ 33 ] reviewed cryogenic thermal management; Lankford [ 30 ] , Hengeveld et al [ 34 ] and Meseguer et al [ 35 ] reviewed outer space applications; Klinar and Kitanovski [ 16 ] reviewed caloric energy conversion; and Chun et al.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fluidic and Mechanical Thermal Control Devices

Klinar

Swoboda

Rojo

et al. 2020

Adv Elect Materials

View full text Add to dashboard Cite

In recent years, intensive studies on thermal control devices have been conducted for the thermal management of electronics and computers as well as for applications in energy conversion, chemistry, sensors, buildings, and outer space. Conventional cooling or heating techniques realized using traditional thermal resistors and capacitors cannot meet the thermal requirements of advanced systems. Therefore, new thermal control devices are being investigated to satisfy these requirements. These devices include thermal diodes, thermal switches, thermal regulators, and thermal transistors, all of which manage heat in a manner analogous to how electronic devices and circuits control electricity. To design or apply these novel devices as well as thermal control principles, this paper presents a systematic and comprehensive review of the state‐of‐the‐art of fluidic and mechanical thermal control devices that have already been implemented in various applications for different size scales and temperature ranges. Operation principles, working parameters, and limitations are discussed and the most important features for a particular device are identified.

show abstract

Section: Fluidic Thermal Control Devicesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fluidic and Mechanical Thermal Control Devices

Klinar

Swoboda

Rojo

et al. 2020

Adv Elect Materials

View full text Add to dashboard Cite

show abstract

“…Typical thermal switches used in practice operate by mechanical mechanisms such as changing the physical contact of metallic leads, which are prone to failure. 2 Numerous other schemes for controlling conductive heat flow have been proposed, including biasing of ferroelectrics, [3][4][5] exploiting changes in properties across a phase transition, [6][7][8][9] and magnetically aligning crystal networks. 10 Thermal switches for radiative heat transfer can be realized if the optical dielectric constant or optical resonances at a surface can be altered by an external stimulus.…”

mentioning

confidence: 99%

Electronic Modulation of Near-Field Radiative Transfer in Graphene Field Effect Heterostructures

et al. 2019

View full text Add to dashboard Cite

Manipulating heat flow in a controllable and reversible manner is a topic of fundamental and practical interest. Numerous approaches to perform thermal switching have been reported, but they typically suffer from various limitations, for instance requiring mechanical modulation of a sub-micron gap spacing or only operating in a narrow temperature window. Here, we report the experimental modulation of radiative heat flow by electronic gating of a graphene field effect heterostructure without any moving elements. We measure a maximum heat flux modulation of 4 ± 3% and an absolute modulation depth of 24 ± 7 mWm −2 V −1 in samples with vacuum gap distances ranging from 1 to 3 microns. The active area in the samples through which 1

show abstract

“…The concept of a thermal regulator has existed for decades, but applications have been limited to a few niche markets such as thermal regulation in spaceships [17,18] and cryogenic systems [19], despite growing interest from other fields in recent years [20]. The main issues with current thermal regulators are low switch ratio (SR), large footprint, high cost, and poor cyclability.…”

Section: Thermal Regulator Design and Operating Mechanismmentioning

confidence: 99%

Efficient thermal management of Li-ion batteries with a passive interfacial thermal regulator based on a shape memory alloy

et al. 2018

View full text Add to dashboard Cite

The poor performance of lithium ion batteries in extreme temperatures is hindering their wider adoption in the energy sector. A fundamental challenge in battery thermal management systems (BTMS) is that hot and cold environments pose opposite requirements: thermal transmission at high temperature for battery cooling, and thermal isolation at low temperature to retain the batteries' internally generated heat, leading to inevitable compromise of either hot or cold performances. Here, we demonstrate a thermal regulator that adjusts its thermal conductance as a function of the temperature, just as desired for the BTMS. Without any external logic control, this new thermal regulator increases battery capacity by a factor of three at T ambient of-20°C in comparison to a baseline BTMS that is always thermally conducting, while also limiting the battery temperature rise to 5°C in very hot environment (T ambient = 45°C) to ensure safety. The result expands the usability of lithium ion batteries in extreme environments and opens up new applications of thermally functional devices.

show abstract

Heat switch technology for cryogenic thermal management

Cited by 23 publications

References 22 publications

Fluidic and Mechanical Thermal Control Devices

Fluidic and Mechanical Thermal Control Devices

Electronic Modulation of Near-Field Radiative Transfer in Graphene Field Effect Heterostructures

Efficient thermal management of Li-ion batteries with a passive interfacial thermal regulator based on a shape memory alloy

Contact Info

Product

Resources

About