Abstract
A model for absorption of water vapor into LiBr flowing over horizontal smooth tubes is developed to predict the absorption performance of a tube bundle. The performance of a horizontal smooth tube absorber is calculated and compared with experimental data. The calculation results of absorber performance are found to vary considerably depending on mass diffusivity. The literature value of mass diffusivity, of the order of 10-9 m2 s-1, causes the model to deviate from the experimental results especially for solution side heat transfer coefficient. A parametric study varying mass diffusivity shows that a value of 1.0 × 10-10 m2 s-1 gives a better agreement with the experimental results. The effects of absorber capacity, heat transfer coefficient of droplets ejected from the system (slinging) and number of tubes in the bundle on the absorption performance are also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 582-590 |
| Number of pages | 9 |
| Journal | International Journal of Refrigeration |
| Volume | 30 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2007 Jun 1 |
| Externally published | Yes |
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Keywords
- Absorber
- Absorption system
- Bundle
- Calculation
- Experiment
- Lithium bromide
- Modelling
- Refrigeration
- Smooth tube
- Water
ASJC Scopus subject areas
- Food Science
- Mechanical Engineering
Cite this
Experimental verification of H2O/LiBr absorber bundle performance with smooth horizontal tubes. / Kyung, Icksoo; Herold, Keith E.; Kang, Yong Tae.
In: International Journal of Refrigeration, Vol. 30, No. 4, 01.06.2007, p. 582-590.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental verification of H2O/LiBr absorber bundle performance with smooth horizontal tubes
AU - Kyung, Icksoo
AU - Herold, Keith E.
AU - Kang, Yong Tae
PY - 2007/6/1
Y1 - 2007/6/1
N2 - A model for absorption of water vapor into LiBr flowing over horizontal smooth tubes is developed to predict the absorption performance of a tube bundle. The performance of a horizontal smooth tube absorber is calculated and compared with experimental data. The calculation results of absorber performance are found to vary considerably depending on mass diffusivity. The literature value of mass diffusivity, of the order of 10-9 m2 s-1, causes the model to deviate from the experimental results especially for solution side heat transfer coefficient. A parametric study varying mass diffusivity shows that a value of 1.0 × 10-10 m2 s-1 gives a better agreement with the experimental results. The effects of absorber capacity, heat transfer coefficient of droplets ejected from the system (slinging) and number of tubes in the bundle on the absorption performance are also discussed.
AB - A model for absorption of water vapor into LiBr flowing over horizontal smooth tubes is developed to predict the absorption performance of a tube bundle. The performance of a horizontal smooth tube absorber is calculated and compared with experimental data. The calculation results of absorber performance are found to vary considerably depending on mass diffusivity. The literature value of mass diffusivity, of the order of 10-9 m2 s-1, causes the model to deviate from the experimental results especially for solution side heat transfer coefficient. A parametric study varying mass diffusivity shows that a value of 1.0 × 10-10 m2 s-1 gives a better agreement with the experimental results. The effects of absorber capacity, heat transfer coefficient of droplets ejected from the system (slinging) and number of tubes in the bundle on the absorption performance are also discussed.
KW - Absorber
KW - Absorption system
KW - Bundle
KW - Calculation
KW - Experiment
KW - Lithium bromide
KW - Modelling
KW - Refrigeration
KW - Smooth tube
KW - Water
UR - http://www.scopus.com/inward/record.url?scp=34247491083&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247491083&partnerID=8YFLogxK
U2 - 10.1016/j.ijrefrig.2006.11.005
DO - 10.1016/j.ijrefrig.2006.11.005
M3 - Article
VL - 30
SP - 582
EP - 590
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
SN - 0140-7007
IS - 4
ER -