Polymeric hollow fiber heat exchanger as an automotive radiator

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F16%3A43874406" target="_blank" >RIV/70883521:28110/16:43874406 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/16:PU119767

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S1359431116313254" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1359431116313254</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.applthermaleng.2016.07.181" target="_blank" >10.1016/j.applthermaleng.2016.07.181</a>

Result language

angličtina

Original language name

Polymeric hollow fiber heat exchanger as an automotive radiator

Original language description

Nowadays, different automotive parts (tubing, covers, manifolds, etc.) are made of plastics because of their superior characteristics, low weight, chemical resistance, reasonable price and several other aspects. Manufacturing technologies are already well-established and the application of plastics is proven. Following this trend, the production of compact and light all-plastic radiators seems reasonable. Two plastic heat exchangers were manufactured based on polypropylene tubes of diameter 0.6 and 0.8 mm (so-called fibers) and tested. The heat transfer performance and pressure drops were studied with hot (60 C) ethyleneglycol-water brine flowing inside the fibers and air (20 C) outside because these onditions are conventional for car radiator operation. It was observed that heat transfer rates (up to 10.2 kW), overall heat transfer coefficients (up to 335 W/m2 K), and pressure drops are competitive to conventional aluminium finned-tube radiators. Moreover, influence of fiber diameter was studied. It was observed that air-side convective coefficients rise with a decrease of fiber diameter. Air-side pressure drops of plastic prototypes were slightly higher than of aluminium radiator but it is expected that additional optimization will eliminate this drawback. Experimentally obtained air-side heat transfer coefficients were compared with the theoretical prediction using the Grimson equation and the Churchill and Bernstein approach. It was found that the Grimson equation is sufficient for approximate prediction of the outer HTCs and can be used for engineering calculations. Further work will concentrate on optimizing and developing a polymeric hollow fiber heat exchanger with reduced size, weight and optimized performance and pressure drops.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BJ - Thermodynamics

OECD FORD branch

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Project

<a href="/en/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2016

Confidentiality

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

Name of the periodical

Applied Thermal Engineering

ISSN

1359-4311

e-ISSN

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Volume of the periodical

108

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

798-803

UT code for WoS article

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EID of the result in the Scopus database

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