A Novel Correlation for Considering the Effect of Neighboring Droplets on the Evaporation Rate of Solvent Droplets Used in Carbon Capture Applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU151855" target="_blank" >RIV/00216305:26210/24:PU151855 - isvavai.cz</a>

Výsledek na webu

<a href="https://asmedigitalcollection.asme.org/heattransfer/article/146/4/041603/1194176/A-Novel-Correlation-for-Considering-the-Effect-of" target="_blank" >https://asmedigitalcollection.asme.org/heattransfer/article/146/4/041603/1194176/A-Novel-Correlation-for-Considering-the-Effect-of</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/1.4064482" target="_blank" >10.1115/1.4064482</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Novel Correlation for Considering the Effect of Neighboring Droplets on the Evaporation Rate of Solvent Droplets Used in Carbon Capture Applications

Popis výsledku v původním jazyce

The spraying of chemicals such as mono-ethanolamine (MEA) and aqueous ammonia is widely used in spray columns for CO2 removal from the combustion flue gasses. When droplets in the spray interact with flue gas, due to temperature difference, along with the absorption of CO2 from the flue gas, they also undergo evaporation. Also, the presence of other droplets in the vicinity of a given droplet can influence evaporation as well as gas absorption into it. Understanding the droplet evaporation and the influence of the surrounding droplets on the evaporation of droplets are one of the critical aspects to address for developing reliable models for CO2 capture from flue gasses. This work investigates the influence of neighboring droplets on evaporation of a droplet in question and comparison with evaporation of an isolated droplet. Various configurations of suspended droplets of water, aqueous ammonia, and MEA were examined within a temperature range spanning from 75 degrees C to 125 degrees C. The droplets, placed on a microfiber grid made up of 100 mu m glass fiber, were introduced into a heating chamber, and temporal variation of the droplet size was recorded using backlit imaging. Images were processed using Matlab algorithms to obtain the droplet's evaporation rate. Variation in the evaporation rate is evaluated with respect to the temperature and available surface area for vapor diffusion. The results indicate that the presence of neighboring droplets influences the droplet evaporation, and the magnitude of influence depends both on the number of droplets as well as their proximity. Of the three liquids studied, influence of neighboring droplets found to be more significant in case of MEA. To consider the influence of neighboring droplets and their proximity, a novel independent parameter called surface area ratio (SAR) was introduced by combining both the parameters. The analysis involved investigating the variation in the normalized evaporation rate in relation to

Název v anglickém jazyce

A Novel Correlation for Considering the Effect of Neighboring Droplets on the Evaporation Rate of Solvent Droplets Used in Carbon Capture Applications

Popis výsledku anglicky

The spraying of chemicals such as mono-ethanolamine (MEA) and aqueous ammonia is widely used in spray columns for CO2 removal from the combustion flue gasses. When droplets in the spray interact with flue gas, due to temperature difference, along with the absorption of CO2 from the flue gas, they also undergo evaporation. Also, the presence of other droplets in the vicinity of a given droplet can influence evaporation as well as gas absorption into it. Understanding the droplet evaporation and the influence of the surrounding droplets on the evaporation of droplets are one of the critical aspects to address for developing reliable models for CO2 capture from flue gasses. This work investigates the influence of neighboring droplets on evaporation of a droplet in question and comparison with evaporation of an isolated droplet. Various configurations of suspended droplets of water, aqueous ammonia, and MEA were examined within a temperature range spanning from 75 degrees C to 125 degrees C. The droplets, placed on a microfiber grid made up of 100 mu m glass fiber, were introduced into a heating chamber, and temporal variation of the droplet size was recorded using backlit imaging. Images were processed using Matlab algorithms to obtain the droplet's evaporation rate. Variation in the evaporation rate is evaluated with respect to the temperature and available surface area for vapor diffusion. The results indicate that the presence of neighboring droplets influences the droplet evaporation, and the magnitude of influence depends both on the number of droplets as well as their proximity. Of the three liquids studied, influence of neighboring droplets found to be more significant in case of MEA. To consider the influence of neighboring droplets and their proximity, a novel independent parameter called surface area ratio (SAR) was introduced by combining both the parameters. The analysis involved investigating the variation in the normalized evaporation rate in relation to

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20300 - Mechanical engineering

Projekt

<a href="/cs/project/GA22-17806S" target="_blank" >GA22-17806S: Pokročilé systémy s kapalnými filmy a spreji pro čištění a sorpci plynů</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

ASME Journal of Heat and Mass Transfer

ISSN

2832-8450

e-ISSN

—

Svazek periodika

146

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

„“-„“

Kód UT WoS článku

001176189000008

EID výsledku v databázi Scopus

2-s2.0-85185840947