Publication detail

Polymeric hollow fiber heat exchangers

RAUDENSKÝ, M.

Original Title

Polymeric hollow fiber heat exchangers

Type

conference paper

Language

English

Original Abstract

Polymeric hollow fiber heat exchangers were first proposed in 2004 by New Jersey Institute of Technology as an alternative to metal exchangers for low temperature application. The first study of this type of heat transfer surface started at Brno University of Technology in 2008. This paper presents a brief survey of activities of Heat Transfer and Fluid Flow Laboratory in the field. The heat exchangers presented use a polymeric capillary with an outer diameter of 0.5mm – 1.3mm and a wall thickness of about 10% of the outer diameter. The typical material is polypropylene and this material was used in the initial years of development. Tiny polypropylene fibers can withstand a burst pressure of 50 bar at room temperature. Heat exchangers using hollow fibers can in principle either have a rigid structure or be a bundle with a chaotic structure. These heat exchangers are effective even in natural convection application where the advantage of high heat transfer coefficient on micro surfaces is utilized. The use of plastic and non-corrosive materials is advantageous in applications where the weight of the heat exchanger is important (about 50% reduction in weight in comparison to classical metal products) and in difficult chemical environments. Flexible polymeric hollow fiber heat exchangers were developed and prototypes were prepared and tested for liquid / air and liquid / liquid conditions. The paper presents a survey of the materials used for hollow fibers, a description of the production of fibers by extrusion, the basic physical principles of heat transfer on micro-surfaces, and prototyping of the number of heat exchangers both with rigid and chaotic structures

Keywords

Polymeric hollow fibre; heat exchanger; heat transfer

Authors

RAUDENSKÝ, M.

Released

27. 6. 2019

Publisher

American Institute of Physics Inc.

ISBN

9780735418585

Book

AIP Conference Proceedings

ISBN

0094-243X

Periodical

AIP conference proceedings

Year of study

2118

Number

1

State

United States of America

Pages from

1

Pages to

5

Pages count

5

URL

https://aip.scitation.org/doi/abs/10.1063/1.5114727

BibTex

@inproceedings{BUT157740,
  author="Miroslav {Raudenský}",
  title="Polymeric hollow fiber heat exchangers",
  booktitle="AIP Conference Proceedings",
  year="2019",
  journal="AIP conference proceedings",
  volume="2118",
  number="1",
  pages="1--5",
  publisher="American Institute of Physics Inc.",
  doi="10.1063/1.5114727",
  isbn="9780735418585",
  issn="0094-243X",
  url="https://aip.scitation.org/doi/abs/10.1063/1.5114727"
}