Publication detail

NUMERICAL INVESTIGATION OF HEAT TRANSFER ON THE OUTER SURFACE OF POLYMERIC HOLLOW FIBERS

BARTULI, E. RAUDENSKÝ, M.

Original Title

NUMERICAL INVESTIGATION OF HEAT TRANSFER ON THE OUTER SURFACE OF POLYMERIC HOLLOW FIBERS

Type

journal article in Web of Science

Language

English

Original Abstract

Polymeric hollow-fiber heat exchangers (PHFHEs) are heat exchangers that use polymeric microchannels as the heat-transfer surface. The main purpose of this work was to determine the optimal arrangement of polymeric hollow fibers in a PHFHE. The object of study was a bundle of parallel polymeric hollow fibers with an outer diameter of 0.8 mm. The heated working fluid flew inside the hollow fibers. The heat was transferred by a cooling medium from the outside of the hollow fibers. Heat-transfer coefficients on the outer surface of the hollow fibers were obtained using computer modelling. For the case of water cooling, a sharp heat-transfer-coefficient increase was observed as the angle alpha between the hollow-fiber position and the direction of the cooling-medium flow increased to 30 degrees; however, its further increase to 45 degrees had no significant effect. With the water cooling, the total heat-transfer coefficient of the PHFHE increased by 35 % and with the air cooling, it increased by 15 %. The angle of 30 degrees can he considered as the optimal angle for manufacturing such PHFHEs.

Keywords

heat transfer; heat exchanger; polymeric hollow fibers; numerical modelling

Authors

BARTULI, E.; RAUDENSKÝ, M.

Released

2. 8. 2018

Publisher

INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE

Location

LEPI POT 11, LJUBJANA, 10000, SLOVENIA

ISBN

1580-2949

Periodical

Materiali in tehnologije

Year of study

52

Number

4

State

Republic of Slovenia

Pages from

459

Pages to

463

Pages count

5

URL

http://mit.imt.si/Revija/izvodi/mit184/bartuli.pdf

BibTex

@article{BUT152128,
  author="Erik {Bartuli} and Miroslav {Raudenský}",
  title="NUMERICAL INVESTIGATION OF HEAT TRANSFER ON THE OUTER SURFACE OF POLYMERIC HOLLOW FIBERS",
  journal="Materiali in tehnologije",
  year="2018",
  volume="52",
  number="4",
  pages="459--463",
  doi="10.17222/mit.2016.221",
  issn="1580-2949",
  url="http://mit.imt.si/Revija/izvodi/mit184/bartuli.pdf"
}