Detail publikace

Temperature-dependent burst failure of polymeric hollow fibers used in heat exchangers

BULEJKO, P. BARTULI, E. KŮDELOVÁ, T. VANČURA, J.

Originální název

Temperature-dependent burst failure of polymeric hollow fibers used in heat exchangers

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This work analyzes resistance of polyamide hollow fibers used for heat exchangers against extremely high pressures. Hollow fibers made of five different commercially available polyamides and one type of polyphenylene sulfide were tested at different temperatures ranging from − 40 to 160 ◦C. After getting the fiber to the required temperature, pressure from a nitrogen vessel was gradually applied to the lumen side of a fiber until the fiber rupture. The results obtained for different polymers were then analyzed using various burst pressure models used to predict pressure durability of pipelines. The result showed decreasing burst pressure of polyamide fibers mostly from 100 bars to about 50 bars with increasing temperature from − 40 to 160 ◦C. This was contrary to polyphenylene sulfide, which increased from 30 to about 60 bars in the same temperature range. The theoretical models were in a strong disagreement with experimental data and the results fluctuated significantly. However, the fibers showed outstanding durability against rupture no matter of the temperature, since the lowest burst pressure was about 40 bars at 160 ◦C. From the point of view of practical usability of polymeric hollow-fiber heat exchangers in automotive, the results indicate the polymeric fibers are able to operate at a wide range of conditions characterized by extreme temperature and pressure fluctuations typical for a car radiator.

Klíčová slova

Hollow fibers, Burst pressure, Heat exchanger, Modelling

Autoři

BULEJKO, P.; BARTULI, E.; KŮDELOVÁ, T.; VANČURA, J.

Vydáno

1. 1. 2022

Nakladatel

Elsevier Ltd

ISSN

1350-6307

Periodikum

ENGINEERING FAILURE ANALYSIS

Ročník

131

Číslo

105895

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

16

Strany počet

16

URL

https://www.sciencedirect.com/science/article/pii/S1350630721007561

BibTex

@article{BUT175621,
  author="Pavel {Bulejko} and Erik {Bartuli} and Tereza {Kůdelová} and Jan {Vančura}",
  title="Temperature-dependent burst failure of polymeric hollow fibers 
used in heat exchangers",
  journal="ENGINEERING FAILURE ANALYSIS",
  year="2022",
  volume="131",
  number="105895",
  pages="1--16",
  doi="10.1016/j.engfailanal.2021.105895",
  issn="1350-6307",
  url="https://www.sciencedirect.com/science/article/pii/S1350630721007561"
}