Shell-and-tube polymeric hollow fiber heat exchangers with parallel and crossed fibers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F21%3APU137291" target="_blank" >RIV/00216305:26210/21:PU137291 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1359431120334827?dgcid=author" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1359431120334827?dgcid=author</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.applthermaleng.2020.116001" target="_blank" >10.1016/j.applthermaleng.2020.116001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Shell-and-tube polymeric hollow fiber heat exchangers with parallel and crossed fibers

Popis výsledku v původním jazyce

In this work shell-and-tube type polymeric hollow fibers heat exchangers (PHFHE) are described and investigated. These heat exchangers utilize polymeric micmchannels with outer diameter of 0.8 mm as the heat transfer surface. Heat exchangers are made of hundreds of such fibers, which are situated in the heat exchanger shell. The main purpose of this work was to conduct a comparative study of two PHFHE: the first one had parallel hollow fibers inside the shell; the second one is a new type of PHFHE having cross-wound structure where hollow fibers were placed at an angle to the heat exchanger axis. Due to the new developed method of separation hollow fibers inside the shell - cross-wound method it was possible to create an arranged structure of hollow fibers. Experimental results has shown that the overall heat transfer coefficient for PHFHE with cross-wound hollow fibers was about 6 times higher than for PHFHE with a parallel fibers at the same average shell water flow velocity. For a shell water velocity of 0.08 m/s the overall heat transfer coefficient for cross-wound PHFHE was equal to 1170 W/m(2)K at a water temperature inside hollow fiber of 11 degrees C and a shell water temperature of 70 degrees C.

Název v anglickém jazyce

Shell-and-tube polymeric hollow fiber heat exchangers with parallel and crossed fibers

Popis výsledku anglicky

In this work shell-and-tube type polymeric hollow fibers heat exchangers (PHFHE) are described and investigated. These heat exchangers utilize polymeric micmchannels with outer diameter of 0.8 mm as the heat transfer surface. Heat exchangers are made of hundreds of such fibers, which are situated in the heat exchanger shell. The main purpose of this work was to conduct a comparative study of two PHFHE: the first one had parallel hollow fibers inside the shell; the second one is a new type of PHFHE having cross-wound structure where hollow fibers were placed at an angle to the heat exchanger axis. Due to the new developed method of separation hollow fibers inside the shell - cross-wound method it was possible to create an arranged structure of hollow fibers. Experimental results has shown that the overall heat transfer coefficient for PHFHE with cross-wound hollow fibers was about 6 times higher than for PHFHE with a parallel fibers at the same average shell water flow velocity. For a shell water velocity of 0.08 m/s the overall heat transfer coefficient for cross-wound PHFHE was equal to 1170 W/m(2)K at a water temperature inside hollow fiber of 11 degrees C and a shell water temperature of 70 degrees C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Centrum výzkumu nízkouhlíkových energetických technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Applied Thermal Engineering

ISSN

1359-4311

e-ISSN

—

Svazek periodika

182

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

1-7

Kód UT WoS článku

000592641600024

EID výsledku v databázi Scopus

2-s2.0-85091345557