Detail publikace

An optimal design for hollow fiber heat exchanger: A combined numerical and experimental investigation

BOHÁČEK, J. RAUDENSKÝ, M. ASTROUSKI, I. KARIMI-SIBAKI, E.

Originální název

An optimal design for hollow fiber heat exchanger: A combined numerical and experimental investigation

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Polymeric hollow-fiber heat exchangers are a sound alternative to metallic plate fin counterparts. Plastic heat exchangers weigh much less, have significantly larger surface area per unit volume, are corrosion/erosion resistant and electrically non-conductive, have a reduced ecological footprint, and are likely to be substantially cheaper. A good passive chilled beam type heat exchanger requires its heat transfer surfaces to be distributed in optimal positions so that the thermal performance is maximized. For that purpose, a Lattice-Boltzmann model was setup in the open-source code Palabos to calculate natural convection triggered around a chilled beam made of many parallel hollow fibers with cold water running inside. In the simulations, the horizontal and vertical pitches between fibers were varied to eventually find their dimensionless optima of 6.9 and 1.3, respectively, for the Rayleigh number of 2.3. The numerical results were validated in the experiment as well as in the well-established ANSYS FLUENT.

Klíčová slova

Heat exchanger, Chilled beam, Natural convection, Hollow fiber, Optimization, Computational fluid dynamics

Autoři

BOHÁČEK, J.; RAUDENSKÝ, M.; ASTROUSKI, I.; KARIMI-SIBAKI, E.

Vydáno

8. 4. 2021

Nakladatel

Elsevir Ltd

ISSN

0360-5442

Periodikum

Energy

Ročník

229

Číslo

120571

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

14

Strany počet

14

URL

https://www.sciencedirect.com/science/article/pii/S0360544221008203?via%3Dihub

BibTex

@article{BUT171382,
  author="Jan {Boháček} and Miroslav {Raudenský} and Ilja {Astrouski} and Ebrahim {Karimi-Sibaki}",
  title="An optimal design for hollow fiber heat exchanger: A combined numerical and experimental investigation",
  journal="Energy",
  year="2021",
  volume="229",
  number="120571",
  pages="1--14",
  doi="10.1016/j.energy.2021.120571",
  issn="0360-5442",
  url="https://www.sciencedirect.com/science/article/pii/S0360544221008203?via%3Dihub"
}