Flexible polymeric hollow fiber heat exchangers for electronic systems

Miroslav Raudensky, Ilya Astrouski, Tereza Brozova, Erik Bartuli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Cooling electronics boxes often requires extraction of high heat fluxes from closed boxes with many heat-producing components. The direct use of ventilation is sometimes limited by demands to use hermetic units or the need to extract heat from a specific place in a large and complicated system. A liquid system introduced inside of the electronic box can be used for this purpose. Unfortunately, metallic heat exchangers have a number of shortcomings in these applications, including significant weight as well as cost and space demands. Polymeric heat exchangers consisting of hollow fibers were proposed a decade ago and can be used as an alternative in such applications. Flexible polymeric hollow fiber heat exchangers were prepared and tested in liquid/air conditions. These heat exchangers use plastic capillaries with an outer diameter of 0.5-0.8 mm and a wall thickness of 10% of the outer diameter. They consist of flexible fibers and can be used in narrow slots and/or in shaped channels. These heat exchangers are effective even in natural convection applications because of their high heat transfer intensity on micro-objects. Experimentally obtained overall heat-transfer coefficients in water/air applications are up to 250 W/m2 K for forced convection and up to 80 W/m2 for natural convection. The use of plastic and non-corrosive materials is advantageous in electronic systems where high heat fluxes must be extracted safely from difficult to access spaces or from hermetically-sealed boxes.

Original languageEnglish
Title of host publicationProceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1143-1147
Number of pages5
ISBN (Electronic)9781467381215
DOIs
Publication statusPublished - 20 Jul 2016
Externally publishedYes
Event15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016 - Las Vegas, United States
Duration: 31 May 20163 Jun 2016

Publication series

NameProceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016

Conference

Conference15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016
CountryUnited States
CityLas Vegas
Period31.5.163.6.16

Fingerprint

Heat exchangers
Fibers
Natural convection
Heat flux
Electronic cooling
Plastics
Forced convection
Liquids
Air
Heat transfer coefficients
Ventilation
Heat transfer
Water
Costs
Hot Temperature

Keywords

  • Heat transfer coefficient
  • liquid cooling of electronic
  • polymeric membranes
  • thermal management

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Hardware and Architecture
  • Mechanics of Materials

Cite this

Raudensky, M., Astrouski, I., Brozova, T., & Bartuli, E. (2016). Flexible polymeric hollow fiber heat exchangers for electronic systems. In Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016 (pp. 1143-1147). [7517677] (Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ITHERM.2016.7517677

Flexible polymeric hollow fiber heat exchangers for electronic systems. / Raudensky, Miroslav; Astrouski, Ilya; Brozova, Tereza; Bartuli, Erik.

Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 1143-1147 7517677 (Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Raudensky, M, Astrouski, I, Brozova, T & Bartuli, E 2016, Flexible polymeric hollow fiber heat exchangers for electronic systems. in Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016., 7517677, Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016, Institute of Electrical and Electronics Engineers Inc., pp. 1143-1147, 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016, Las Vegas, United States, 31.5.16. https://doi.org/10.1109/ITHERM.2016.7517677
Raudensky M, Astrouski I, Brozova T, Bartuli E. Flexible polymeric hollow fiber heat exchangers for electronic systems. In Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 1143-1147. 7517677. (Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016). https://doi.org/10.1109/ITHERM.2016.7517677
Raudensky, Miroslav ; Astrouski, Ilya ; Brozova, Tereza ; Bartuli, Erik. / Flexible polymeric hollow fiber heat exchangers for electronic systems. Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 1143-1147 (Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016).
@inproceedings{c6368152df254647879fbb1ed33acc29,
title = "Flexible polymeric hollow fiber heat exchangers for electronic systems",
abstract = "Cooling electronics boxes often requires extraction of high heat fluxes from closed boxes with many heat-producing components. The direct use of ventilation is sometimes limited by demands to use hermetic units or the need to extract heat from a specific place in a large and complicated system. A liquid system introduced inside of the electronic box can be used for this purpose. Unfortunately, metallic heat exchangers have a number of shortcomings in these applications, including significant weight as well as cost and space demands. Polymeric heat exchangers consisting of hollow fibers were proposed a decade ago and can be used as an alternative in such applications. Flexible polymeric hollow fiber heat exchangers were prepared and tested in liquid/air conditions. These heat exchangers use plastic capillaries with an outer diameter of 0.5-0.8 mm and a wall thickness of 10{\%} of the outer diameter. They consist of flexible fibers and can be used in narrow slots and/or in shaped channels. These heat exchangers are effective even in natural convection applications because of their high heat transfer intensity on micro-objects. Experimentally obtained overall heat-transfer coefficients in water/air applications are up to 250 W/m2 K for forced convection and up to 80 W/m2 for natural convection. The use of plastic and non-corrosive materials is advantageous in electronic systems where high heat fluxes must be extracted safely from difficult to access spaces or from hermetically-sealed boxes.",
keywords = "Heat transfer coefficient, liquid cooling of electronic, polymeric membranes, thermal management",
author = "Miroslav Raudensky and Ilya Astrouski and Tereza Brozova and Erik Bartuli",
year = "2016",
month = "7",
day = "20",
doi = "10.1109/ITHERM.2016.7517677",
language = "English",
series = "Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1143--1147",
booktitle = "Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016",
address = "United States",

}

TY - GEN

T1 - Flexible polymeric hollow fiber heat exchangers for electronic systems

AU - Raudensky, Miroslav

AU - Astrouski, Ilya

AU - Brozova, Tereza

AU - Bartuli, Erik

PY - 2016/7/20

Y1 - 2016/7/20

N2 - Cooling electronics boxes often requires extraction of high heat fluxes from closed boxes with many heat-producing components. The direct use of ventilation is sometimes limited by demands to use hermetic units or the need to extract heat from a specific place in a large and complicated system. A liquid system introduced inside of the electronic box can be used for this purpose. Unfortunately, metallic heat exchangers have a number of shortcomings in these applications, including significant weight as well as cost and space demands. Polymeric heat exchangers consisting of hollow fibers were proposed a decade ago and can be used as an alternative in such applications. Flexible polymeric hollow fiber heat exchangers were prepared and tested in liquid/air conditions. These heat exchangers use plastic capillaries with an outer diameter of 0.5-0.8 mm and a wall thickness of 10% of the outer diameter. They consist of flexible fibers and can be used in narrow slots and/or in shaped channels. These heat exchangers are effective even in natural convection applications because of their high heat transfer intensity on micro-objects. Experimentally obtained overall heat-transfer coefficients in water/air applications are up to 250 W/m2 K for forced convection and up to 80 W/m2 for natural convection. The use of plastic and non-corrosive materials is advantageous in electronic systems where high heat fluxes must be extracted safely from difficult to access spaces or from hermetically-sealed boxes.

AB - Cooling electronics boxes often requires extraction of high heat fluxes from closed boxes with many heat-producing components. The direct use of ventilation is sometimes limited by demands to use hermetic units or the need to extract heat from a specific place in a large and complicated system. A liquid system introduced inside of the electronic box can be used for this purpose. Unfortunately, metallic heat exchangers have a number of shortcomings in these applications, including significant weight as well as cost and space demands. Polymeric heat exchangers consisting of hollow fibers were proposed a decade ago and can be used as an alternative in such applications. Flexible polymeric hollow fiber heat exchangers were prepared and tested in liquid/air conditions. These heat exchangers use plastic capillaries with an outer diameter of 0.5-0.8 mm and a wall thickness of 10% of the outer diameter. They consist of flexible fibers and can be used in narrow slots and/or in shaped channels. These heat exchangers are effective even in natural convection applications because of their high heat transfer intensity on micro-objects. Experimentally obtained overall heat-transfer coefficients in water/air applications are up to 250 W/m2 K for forced convection and up to 80 W/m2 for natural convection. The use of plastic and non-corrosive materials is advantageous in electronic systems where high heat fluxes must be extracted safely from difficult to access spaces or from hermetically-sealed boxes.

KW - Heat transfer coefficient

KW - liquid cooling of electronic

KW - polymeric membranes

KW - thermal management

UR - http://www.scopus.com/inward/record.url?scp=84983365245&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983365245&partnerID=8YFLogxK

U2 - 10.1109/ITHERM.2016.7517677

DO - 10.1109/ITHERM.2016.7517677

M3 - Conference contribution

T3 - Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016

SP - 1143

EP - 1147

BT - Proceedings of the 15th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2016

PB - Institute of Electrical and Electronics Engineers Inc.

ER -