Experimental investigation of two-phase thermosyphon heat exchanger charged with acetone

Janusz Cieśliński; Maciej Fabrykiewicz

doi:10.1051/e3sconf/20187002003

Experimental investigation of two-phase thermosyphon heat exchanger charged with acetone

Abstrakt

This paper presents thermal characteristics of prototype of a two-phase thermosyphon heat exchanger (TPTHEx) charged with acetone as a working fluid. The TPTHEx consists of two horizontal cylindrical vessels connected by two risers and a downcomer. Tube bundles placed in the lower and upper cylinders work as an evaporator and a condenser, respectively. The tested TPTHEx operates in a vacuum. Therefore, the working liquid is boiled in temperatures ranging from 33ºC to 62ºC. The overall heat transfer coefficient (OHTC) of the tested TPTHEx was estimated by the use of the Wilson method and the modified Peclet equation. The results obtained indicate a superiority of water over acetone as a working fluid. Moreover, it was shown that having a lower pressure in the shell-side of TPTHEx results in a higher overall heat transfer coefficient. The Wilson method and the modified Peclet equation predict OHTC with satisfactory agreement.

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Wersja publikacji: Accepted albo Published Version
Licencja: otwiera się w nowej karcie

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Kategoria:: Aktywność konferencyjna
Typ:: materiały konferencyjne indeksowane w Web of Science
Język:: angielski
Rok wydania:: 2018
Opis bibliograficzny:: Cieśliński J., Fabrykiewicz M..: Experimental investigation of two-phase thermosyphon heat exchanger charged with acetone, W: , 2018, ,.
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1051/e3sconf/20187002003
Weryfikacja:: Politechnika Gdańska