Experimental investigation of two-phase thermosyphon heat exchanger charged with acetone-Reference-Cited by-同舟云学术

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

Published:2018 Issue: Volume:70 Page:02003
ISSN:2267-1242
Container-title:E3S Web of Conferences
language:
Short-container-title:E3S Web Conf.

Author:

Cieśliński Janusz T.,Fabrykiewicz Maciej

Abstract

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 33°C to 62°C. 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.

Publisher

EDP Sciences

Link

https://www.e3s-conferences.org/10.1051/e3sconf/20187002003/pdf

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