Absorption performance enhancement by nano-particles and chemical surfactants in binary nanofluids

Jin Kyeong Kim; Jun Young Jung; Yong Tae Kang

doi:10.1016/j.ijrefrig.2006.04.006

Absorption performance enhancement by nano-particles and chemical surfactants in binary nanofluids

Jin Kyeong Kim, Jun Young Jung, Yong Tae Kang

Research output: Contribution to journal › Article › peer-review

120 Citations (Scopus)

Abstract

The objectives of this paper are to visualize the bubble behavior during the NH₃/H₂O absorption process with chemical surfactant and nano-particles and to study the effect of nano-particles and surfactants on the absorption characteristics. Binary nanofluid which means binary mixture with nano-sized particles is tested to apply nanofluid to the absorption system. Cu, CuO and Al₂O₃ nano-particles are added into NH₃/H₂O solution to make the binary nanofluids, and 2-ethyl-1-hexanol, n-octanol and 2-octanol are used as the surfactants. The concentration of ammonia in the basefluid, that of nano-particles in the nanofluid, and that of surfactants in the nanofluid are considered as the key parameters. The results show that the addition of surfactants and nano-particles improves the absorption performance up to 5.32 times. It can be concluded that the addition of both surfactants and nano-particles enhances significantly the absorption performance during the ammonia bubble absorption process.

Original language	English
Pages (from-to)	50-57
Number of pages	8
Journal	International Journal of Refrigeration
Volume	30
Issue number	1
DOIs	https://doi.org/10.1016/j.ijrefrig.2006.04.006
Publication status	Published - 2007 Jan
Externally published	Yes

Keywords

Absorption system
Additives
Ammonia-water
Improvement
Nanofluid
Particle
Performance
Refrigeration
Surface tension

ASJC Scopus subject areas

Building and Construction
Mechanical Engineering

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title = "Absorption performance enhancement by nano-particles and chemical surfactants in binary nanofluids",

abstract = "The objectives of this paper are to visualize the bubble behavior during the NH3/H2O absorption process with chemical surfactant and nano-particles and to study the effect of nano-particles and surfactants on the absorption characteristics. Binary nanofluid which means binary mixture with nano-sized particles is tested to apply nanofluid to the absorption system. Cu, CuO and Al2O3 nano-particles are added into NH3/H2O solution to make the binary nanofluids, and 2-ethyl-1-hexanol, n-octanol and 2-octanol are used as the surfactants. The concentration of ammonia in the basefluid, that of nano-particles in the nanofluid, and that of surfactants in the nanofluid are considered as the key parameters. The results show that the addition of surfactants and nano-particles improves the absorption performance up to 5.32 times. It can be concluded that the addition of both surfactants and nano-particles enhances significantly the absorption performance during the ammonia bubble absorption process.",

keywords = "Absorption system, Additives, Ammonia-water, Improvement, Nanofluid, Particle, Performance, Refrigeration, Surface tension",

author = "Kim, {Jin Kyeong} and Jung, {Jun Young} and Kang, {Yong Tae}",

note = "Funding Information: This work was partially supported by Korea Energy Management Corporation Grant (2004-E-NC03-P-02-0-000-2004) and by MOCIE through IERC program. ",

year = "2007",

month = jan,

doi = "10.1016/j.ijrefrig.2006.04.006",

language = "English",

volume = "30",

pages = "50--57",

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AU - Kim, Jin Kyeong

AU - Jung, Jun Young

AU - Kang, Yong Tae

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PY - 2007/1

Y1 - 2007/1

N2 - The objectives of this paper are to visualize the bubble behavior during the NH3/H2O absorption process with chemical surfactant and nano-particles and to study the effect of nano-particles and surfactants on the absorption characteristics. Binary nanofluid which means binary mixture with nano-sized particles is tested to apply nanofluid to the absorption system. Cu, CuO and Al2O3 nano-particles are added into NH3/H2O solution to make the binary nanofluids, and 2-ethyl-1-hexanol, n-octanol and 2-octanol are used as the surfactants. The concentration of ammonia in the basefluid, that of nano-particles in the nanofluid, and that of surfactants in the nanofluid are considered as the key parameters. The results show that the addition of surfactants and nano-particles improves the absorption performance up to 5.32 times. It can be concluded that the addition of both surfactants and nano-particles enhances significantly the absorption performance during the ammonia bubble absorption process.

AB - The objectives of this paper are to visualize the bubble behavior during the NH3/H2O absorption process with chemical surfactant and nano-particles and to study the effect of nano-particles and surfactants on the absorption characteristics. Binary nanofluid which means binary mixture with nano-sized particles is tested to apply nanofluid to the absorption system. Cu, CuO and Al2O3 nano-particles are added into NH3/H2O solution to make the binary nanofluids, and 2-ethyl-1-hexanol, n-octanol and 2-octanol are used as the surfactants. The concentration of ammonia in the basefluid, that of nano-particles in the nanofluid, and that of surfactants in the nanofluid are considered as the key parameters. The results show that the addition of surfactants and nano-particles improves the absorption performance up to 5.32 times. It can be concluded that the addition of both surfactants and nano-particles enhances significantly the absorption performance during the ammonia bubble absorption process.

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KW - Particle

KW - Performance

KW - Refrigeration

KW - Surface tension

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Absorption performance enhancement by nano-particles and chemical surfactants in binary nanofluids

Abstract

Keywords

ASJC Scopus subject areas

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