Publication detail

Polymeric Hollow‐Fiber Bundles as Immersed Heat Exchangers

WEISS, K. ASTROUSKI, I. RAUDENSKÝ, M. REPPICH, M.

English title

Polymeric Hollow‐Fiber Bundles as Immersed Heat Exchangers

Type

journal article in Web of Science

Language

en

Original abstract

Plastic immersed heat exchangers are used in various applications where chemically neutral and noncorrosive equipment is required. Their potential competitors, namely, polymeric hollow-fiber bundles, were investigated. Three different fiber bundles were tested as immersed coolers of a hot reservoir. Two types of polypropylene hollow fibers with various outside diameters were employed. Fibers were twisted with different curvature to achieve better distribution and improve natural convection on their outer surface. Calculation by experimental results was compared with the equation for natural convection across the horizontal cylinder, which overestimates heat transfer coefficients and can be applied for only rough estimation. Experimentally achieved pressure drops agreed well with theoretical prediction for laminar flow.

English abstract

Plastic immersed heat exchangers are used in various applications where chemically neutral and noncorrosive equipment is required. Their potential competitors, namely, polymeric hollow-fiber bundles, were investigated. Three different fiber bundles were tested as immersed coolers of a hot reservoir. Two types of polypropylene hollow fibers with various outside diameters were employed. Fibers were twisted with different curvature to achieve better distribution and improve natural convection on their outer surface. Calculation by experimental results was compared with the equation for natural convection across the horizontal cylinder, which overestimates heat transfer coefficients and can be applied for only rough estimation. Experimentally achieved pressure drops agreed well with theoretical prediction for laminar flow.

Keywords in English

Hollow fibers, Natural convection, Overall heat transfer coefficient, Polymeric heat exchangers

Released

15.05.2018

Publisher

WILEY-VCH Verlag GmbH & Co

Location

Weinheim

ISSN

1521-4125

Volume

41

Number

7

Pages from–to

1457–1465

Pages count

9

BIBTEX


@article{BUT148620,
  author="Ilja {Astrouski} and Marcus {Reppich} and Miroslav {Raudenský},
  title="Polymeric Hollow‐Fiber Bundles as Immersed Heat Exchangers",
  year="2018",
  volume="41",
  number="7",
  month="May",
  pages="1457--1465",
  publisher="WILEY-VCH Verlag GmbH & Co",
  address="Weinheim",
  issn="1521-4125"
}