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Intensification of heat transfer of polymeric hollow fiber heat exchangers by chaotisation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU122103" target="_blank" >RIV/00216305:26210/17:PU122103 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.sciencedirect.com/science/article/pii/S1359431116330770" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1359431116330770</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.applthermaleng.2016.11.038" target="_blank" >10.1016/j.applthermaleng.2016.11.038</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Intensification of heat transfer of polymeric hollow fiber heat exchangers by chaotisation

  • Original language description

    Flexible polymeric hollow fibers are used as heat transfer elements. A potted bundle of several hundred such fibers can be used as a heat exchanger in different ways. The simplest application is a submerged bundle. The fibers studied in this paper have outside diameters below 0.8 mm. Such very small-diameter polymer fibers significantly facilitate heat transfer. However, these potted sets of fibers must be designed to guarantee that all fibers are in direct contact with the surrounding stream of fluid. It is possible to use textile technologies to keep fibers strictly parallel and separated. However, a parallel arrangement can be expensive and is not flexible. A low-cost variant utilizes bundle chaotisation, which means that each fiber has a unique shape. The consequence is that their mutual mechanical contacts are point-wise. Several methods of chaotisation are studied in this paper. The best variant is a permanent fiber deformation/chaotisation of fibers using integrated heating/cooling and stretching. The tested CFPFHEs (Chaotised Flexible Polymeric Fiber Heat Exchangers) had an overall heat transfer area of 1 m2, and its length was approximately 700 mm. It achieved a water/air overall heat transfer coefficient of 100 W/m2 K with an outside air flow of 2 m/s.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20303 - Thermodynamics

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Thermal Engineering

  • ISSN

    1359-4311

  • e-ISSN

  • Volume of the periodical

    neuveden

  • Issue of the periodical within the volume

    113

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    7

  • Pages from-to

    632-638

  • UT code for WoS article

    000394723300058

  • EID of the result in the Scopus database

    2-s2.0-84995622061