Performance evaluation of cross-flow single-phase liquid-to-gas polymer tube
          heat exchanger

Dewanjee, Sujan; Hasan, Md. Rakibul; Rahman, Ashiqur

doi:10.1063/1.4984706

Cited by 1 publication

(1 citation statement)

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“…Studies on the application of hollow fiber surfaces for gas–liquid heat transfer are not widespread. There are studies which have investigated heat transfer on banks of small polymeric tubes, for example [ 15 , 16 ]. Other studies have focused on improving the properties of polymeric material in order to enhance thermal conductivity and make it possible to use finned tubes [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of a Novel Polymeric Hollow Fiber Heat Exchanger and a Commercially Available Metal Automotive Radiator

et al. 2021

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A novel heat exchanger for automotive applications developed by the Heat Transfer and Fluid Flow Laboratory at the Brno University of Technology, Czech Republic, is compared with a conventional commercially available metal radiator. The heat transfer surface of this heat exchanger is composed of polymeric hollow fibers made from polyamide 612 by DuPont (Zytel LC6159). The cross-section of the polymeric radiator is identical to the aluminum radiator (louvered fins on flat tubes) in a Skoda Octavia and measures 720 × 480 mm. The goal of the study is to compare the functionality and performance parameters of both radiators based on the results of tests in a calibrated air wind tunnel. During testing, both heat exchangers were tested in conventional conditions used for car radiators with different air flow and coolant (50% ethylene glycol) rates. The polymeric hollow fiber heat exchanger demonstrated about 20% higher thermal performance for the same air flow. The efficiency of the polymeric radiator was in the range 80–93% and the efficiency of the aluminum radiator was in the range 64–84%. The polymeric radiator is 30% lighter than its conventional metal competitor. Both tested radiators had very similar pressure loss on the liquid side, but the polymeric radiator featured higher air pressure loss.

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Section: Introductionmentioning

confidence: 99%