Chaotised polymeric hollow fibre bundle as a crossflow heat exchanger in air-water application

Tereza Kroulíková, Ilya Astrouski, Miroslav Raudenský

Chaotised polymeric hollow fibre bundle as a crossflow heat exchanger in air-water application

Číslo: 4/2020
Periodikum: Acta Polytechnica
DOI: 10.14311/AP.2020.60.0318

Klíčová slova: Polymer hollow fibre, chaotic structure, cross-flow heat exchanger, gas-liquid application

Pro získání musíte mít účet v Citace PRO.

Přečíst po přihlášení

Anotace: Fifteen years ago, polymeric hollow fibre heat exchangers were presented for the first time. Nowadays there are not only the shell-and-tube types as there were at the beginning. In this paper, six chaotised polymeric hollow fibre bundles with a different number of fibres were studied. The bundles presented varied in their fibre diameter, number and shape. These bundles were fixed into the module in such a way that the middle part serves as a cross-flow heat exchanger in an air tunnel. They were tested for air-water application with three different airflow rates. The overall heat transfer coefficients were determined, and the inner and outer heat transfer coefficients were derived. The modules presented achieved a heat transfer rate of up to 1309 W. The overall heat transfer coefficient reached a maximum of 339 Wm−2 K−1.