Publication detail

Polymeric hollow fiber heat exchangers

RAUDENSKÝ, M. ASTROUSKI, I. BROŽOVÁ, T.

Original Title

Polymeric hollow fiber heat exchangers

English Title

Polymeric hollow fiber heat exchangers

Type

conference paper

Language

en

Original Abstract

Metallic heat exchangers have a number of well-known shortcomings such as high weight and cost and low resistance to corrosion. Polymeric hollow fiber heat exchangers were proposed about a decade ago as an alternative for low temperature applications. Although experimental results have been published for liquid-to-liquid applications, there is no data for liquid-to-gas applications. To overcome this lack of data, two liquid-to-air cross-flow heat exchangers were prepared and tested. Two types of polypropylene hollow fibers (wall thickness 50 μm, outside diameter 800 μm and 600 μm) were used to create heat exchangers with a heat exchange area of approximately 0.6 m2. An original approach (fiber fabrics were woven) was utilized to achieve a uniform distribution of fibers. The heat transfer performance was studied with hot liquids (60–90°C ethyleneglycolwater brine or water) flowing inside the fibers and cooling air flowing across the fibers. Experiments showed that hollow fiber cross-flow heat exchangers can achieve high values of overall heat-transfer coefficients (200–450 W/m2 K) and can compete to ordinary finned-tube heat exchangers.

English abstract

Metallic heat exchangers have a number of well-known shortcomings such as high weight and cost and low resistance to corrosion. Polymeric hollow fiber heat exchangers were proposed about a decade ago as an alternative for low temperature applications. Although experimental results have been published for liquid-to-liquid applications, there is no data for liquid-to-gas applications. To overcome this lack of data, two liquid-to-air cross-flow heat exchangers were prepared and tested. Two types of polypropylene hollow fibers (wall thickness 50 μm, outside diameter 800 μm and 600 μm) were used to create heat exchangers with a heat exchange area of approximately 0.6 m2. An original approach (fiber fabrics were woven) was utilized to achieve a uniform distribution of fibers. The heat transfer performance was studied with hot liquids (60–90°C ethyleneglycolwater brine or water) flowing inside the fibers and cooling air flowing across the fibers. Experiments showed that hollow fiber cross-flow heat exchangers can achieve high values of overall heat-transfer coefficients (200–450 W/m2 K) and can compete to ordinary finned-tube heat exchangers.

Keywords

polymeric hollow fibers, heat exchanger, forced convection

Released

07.09.2016

Publisher

Wessex Institute

Location

UK

ISBN

978-1-78466-109-0

Book

Heat Transfer XIV Simulation and Experiments in Heat Transfer and its Applications

Edition number

106

Pages from

95

Pages to

105

Pages count

11

URL

BibTex


@inproceedings{BUT127987,
  author="Miroslav {Raudenský} and Ilya {Astrouski} and Tereza {Kůdelová}",
  title="Polymeric hollow fiber heat exchangers",
  annote="Metallic heat exchangers have a number of well-known shortcomings such as high
weight and cost and low resistance to corrosion. Polymeric hollow fiber heat
exchangers were proposed about a decade ago as an alternative for low
temperature applications. Although experimental results have been published for
liquid-to-liquid applications, there is no data for liquid-to-gas applications. To
overcome this lack of data, two liquid-to-air cross-flow heat exchangers were
prepared and tested. Two types of polypropylene hollow fibers (wall thickness
50 μm, outside diameter 800 μm and 600 μm) were used to create heat exchangers
with a heat exchange area of approximately 0.6 m2. An original approach (fiber
fabrics were woven) was utilized to achieve a uniform distribution of fibers. The
heat transfer performance was studied with hot liquids (60–90°C ethyleneglycolwater
brine or water) flowing inside the fibers and cooling air flowing across the
fibers. Experiments showed that hollow fiber cross-flow heat exchangers can
achieve high values of overall heat-transfer coefficients (200–450 W/m2 K) and
can compete to ordinary finned-tube heat exchangers.",
  address="Wessex Institute",
  booktitle="Heat Transfer XIV
Simulation and Experiments in Heat Transfer and its Applications",
  chapter="127987",
  doi="10.2495/HT160101",
  howpublished="online",
  institution="Wessex Institute",
  year="2016",
  month="september",
  pages="95--105",
  publisher="Wessex Institute",
  type="conference paper"
}