A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water

Jae Cheol Lee, Ki Bong Lee, Byung Hee Chun, Chan Ho Lee, Jong Joo Ha, Sung Hyun Kim

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

An absorber is a major component in the absorption refrigeration systems, and its performance greatly affects the overall system performance. In this study, both the numerical and experimental analyses in the absorption process of a bubble mode absorber were performed. Gas was injected into the bottom of the absorber at a constant solution flow rate. The region of gas absorption was estimated by both numerical and experimental analyses. A higher gas flow rate increases the region of gas absorption. As the temperature and concentration of the input solution decrease, the region of gas absorption decreases. In addition, the absorption performance of the countercurrent flow was superior to that of cocurrent. Mathematical modeling equations were derived from the material balance for the gas and liquid phases based on neglecting the heat and mass transfer of water from liquid to gas phase. A comparison of the model simulation and experimental results shows similar values. This means that this numerical model can be applied for design of a bubble mode absorber.

Original languageEnglish
Pages (from-to)551-558
Number of pages8
JournalInternational Journal of Refrigeration
Volume26
Issue number5
DOIs
Publication statusPublished - 2003 Aug 1

Fingerprint

Gas absorption
bubbles
mass transfer
Ammonia
ammonia
Mass transfer
Gases
gases
Water
Computer simulation
Flow rate
Absorption refrigeration
water
Experiments
Liquids
Flow of gases
Numerical models
Heat transfer
Refrigeration
liquids

Keywords

  • Absorber
  • Absorption system
  • Ammonia-water
  • Bubble
  • Mass transfer
  • Modelling

ASJC Scopus subject areas

  • Food Science
  • Mechanical Engineering

Cite this

A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water. / Lee, Jae Cheol; Lee, Ki Bong; Chun, Byung Hee; Lee, Chan Ho; Ha, Jong Joo; Kim, Sung Hyun.

In: International Journal of Refrigeration, Vol. 26, No. 5, 01.08.2003, p. 551-558.

Research output: Contribution to journalArticle

@article{3542bc6903ed487d932e0fb3d2e553e4,
title = "A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water",
abstract = "An absorber is a major component in the absorption refrigeration systems, and its performance greatly affects the overall system performance. In this study, both the numerical and experimental analyses in the absorption process of a bubble mode absorber were performed. Gas was injected into the bottom of the absorber at a constant solution flow rate. The region of gas absorption was estimated by both numerical and experimental analyses. A higher gas flow rate increases the region of gas absorption. As the temperature and concentration of the input solution decrease, the region of gas absorption decreases. In addition, the absorption performance of the countercurrent flow was superior to that of cocurrent. Mathematical modeling equations were derived from the material balance for the gas and liquid phases based on neglecting the heat and mass transfer of water from liquid to gas phase. A comparison of the model simulation and experimental results shows similar values. This means that this numerical model can be applied for design of a bubble mode absorber.",
keywords = "Absorber, Absorption system, Ammonia-water, Bubble, Mass transfer, Modelling",
author = "Lee, {Jae Cheol} and Lee, {Ki Bong} and Chun, {Byung Hee} and Lee, {Chan Ho} and Ha, {Jong Joo} and Kim, {Sung Hyun}",
year = "2003",
month = "8",
day = "1",
doi = "10.1016/S0140-7007(03)00002-1",
language = "English",
volume = "26",
pages = "551--558",
journal = "International Journal of Refrigeration",
issn = "0140-7007",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water

AU - Lee, Jae Cheol

AU - Lee, Ki Bong

AU - Chun, Byung Hee

AU - Lee, Chan Ho

AU - Ha, Jong Joo

AU - Kim, Sung Hyun

PY - 2003/8/1

Y1 - 2003/8/1

N2 - An absorber is a major component in the absorption refrigeration systems, and its performance greatly affects the overall system performance. In this study, both the numerical and experimental analyses in the absorption process of a bubble mode absorber were performed. Gas was injected into the bottom of the absorber at a constant solution flow rate. The region of gas absorption was estimated by both numerical and experimental analyses. A higher gas flow rate increases the region of gas absorption. As the temperature and concentration of the input solution decrease, the region of gas absorption decreases. In addition, the absorption performance of the countercurrent flow was superior to that of cocurrent. Mathematical modeling equations were derived from the material balance for the gas and liquid phases based on neglecting the heat and mass transfer of water from liquid to gas phase. A comparison of the model simulation and experimental results shows similar values. This means that this numerical model can be applied for design of a bubble mode absorber.

AB - An absorber is a major component in the absorption refrigeration systems, and its performance greatly affects the overall system performance. In this study, both the numerical and experimental analyses in the absorption process of a bubble mode absorber were performed. Gas was injected into the bottom of the absorber at a constant solution flow rate. The region of gas absorption was estimated by both numerical and experimental analyses. A higher gas flow rate increases the region of gas absorption. As the temperature and concentration of the input solution decrease, the region of gas absorption decreases. In addition, the absorption performance of the countercurrent flow was superior to that of cocurrent. Mathematical modeling equations were derived from the material balance for the gas and liquid phases based on neglecting the heat and mass transfer of water from liquid to gas phase. A comparison of the model simulation and experimental results shows similar values. This means that this numerical model can be applied for design of a bubble mode absorber.

KW - Absorber

KW - Absorption system

KW - Ammonia-water

KW - Bubble

KW - Mass transfer

KW - Modelling

UR - http://www.scopus.com/inward/record.url?scp=0038485963&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038485963&partnerID=8YFLogxK

U2 - 10.1016/S0140-7007(03)00002-1

DO - 10.1016/S0140-7007(03)00002-1

M3 - Article

VL - 26

SP - 551

EP - 558

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

SN - 0140-7007

IS - 5

ER -