The effects of nanoparticles on absorption heat and mass transfer performance in NH3/H2O binary nanofluids

Jin Ki Lee; Junemo Koo; Hiki Hong; Yong Tae Kang

doi:10.1016/j.ijrefrig.2009.10.004

The effects of nanoparticles on absorption heat and mass transfer performance in NH₃/H₂O binary nanofluids

Jin Ki Lee, Junemo Koo, Hiki Hong, Yong Tae Kang

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

117 Citations (Scopus)

Abstract

The objectives of this paper are to examine the effect of nanoparticles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for NH₃/H₂O absorption system. The binary nanofluids which mean binary mixture with nano-sized particles are tested to apply nanofluids to the absorption system. Al₂O₃ and carbon nanotube (CNT) particles are added to make the binary nanofluids in the binary mixture of NH₃/H₂O. The effect of Al₂O₃ nanoparticles and CNT on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of NH₃ concentration, 0-0.08 vol% (volume fraction) of CNT particles, and 0-0.06 vol% of Al₂O₃ nanoparticles. For the NH₃/H₂O nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al₂O₃ nanoparticles were found to be 29% and 18% higher than those without nanoparticles, respectively. It is recommended that the concentration of 0.02 vol% of Al₂O₃ nanoparticles be the best candidate for NH₃/H₂O absorption performance enhancement in the present conditions. It is expected that this study will give some basic idea to understand the heat and mass transfer enhancement mechanism in multi-components nanofluids.

Original language	English
Pages (from-to)	269-275
Number of pages	7
Journal	International Journal of Refrigeration
Volume	33
Issue number	2
DOIs	https://doi.org/10.1016/j.ijrefrig.2009.10.004
Publication status	Published - 2010 Mar
Externally published	Yes

Keywords

Absorption system Ammonia-water Experiment
Additive
Aluminium
Aqueous solution
Heat transfer
Mass transfer
Nanotube
Oxide
Particle

ASJC Scopus subject areas

Building and Construction
Mechanical Engineering

Access to Document

10.1016/j.ijrefrig.2009.10.004

Cite this

@article{0b51172610a34a7bad84f4aef92c31f0,

title = "The effects of nanoparticles on absorption heat and mass transfer performance in NH3/H2O binary nanofluids",

abstract = "The objectives of this paper are to examine the effect of nanoparticles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for NH3/H2O absorption system. The binary nanofluids which mean binary mixture with nano-sized particles are tested to apply nanofluids to the absorption system. Al2O3 and carbon nanotube (CNT) particles are added to make the binary nanofluids in the binary mixture of NH3/H2O. The effect of Al2O3 nanoparticles and CNT on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of NH3 concentration, 0-0.08 vol% (volume fraction) of CNT particles, and 0-0.06 vol% of Al2O3 nanoparticles. For the NH3/H2O nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al2O3 nanoparticles were found to be 29% and 18% higher than those without nanoparticles, respectively. It is recommended that the concentration of 0.02 vol% of Al2O3 nanoparticles be the best candidate for NH3/H2O absorption performance enhancement in the present conditions. It is expected that this study will give some basic idea to understand the heat and mass transfer enhancement mechanism in multi-components nanofluids.",

keywords = "Absorption system Ammonia-water Experiment, Additive, Aluminium, Aqueous solution, Heat transfer, Mass transfer, Nanotube, Oxide, Particle",

author = "Lee, {Jin Ki} and Junemo Koo and Hiki Hong and Kang, {Yong Tae}",

note = "Funding Information: This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund)(KRF-2008-313-D00037) ",

year = "2010",

month = mar,

doi = "10.1016/j.ijrefrig.2009.10.004",

language = "English",

volume = "33",

pages = "269--275",

journal = "International Journal of Refrigeration",

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publisher = "Elsevier Limited",

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T1 - The effects of nanoparticles on absorption heat and mass transfer performance in NH3/H2O binary nanofluids

AU - Lee, Jin Ki

AU - Koo, Junemo

AU - Hong, Hiki

AU - Kang, Yong Tae

N1 - Funding Information: This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund)(KRF-2008-313-D00037)

PY - 2010/3

Y1 - 2010/3

N2 - The objectives of this paper are to examine the effect of nanoparticles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for NH3/H2O absorption system. The binary nanofluids which mean binary mixture with nano-sized particles are tested to apply nanofluids to the absorption system. Al2O3 and carbon nanotube (CNT) particles are added to make the binary nanofluids in the binary mixture of NH3/H2O. The effect of Al2O3 nanoparticles and CNT on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of NH3 concentration, 0-0.08 vol% (volume fraction) of CNT particles, and 0-0.06 vol% of Al2O3 nanoparticles. For the NH3/H2O nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al2O3 nanoparticles were found to be 29% and 18% higher than those without nanoparticles, respectively. It is recommended that the concentration of 0.02 vol% of Al2O3 nanoparticles be the best candidate for NH3/H2O absorption performance enhancement in the present conditions. It is expected that this study will give some basic idea to understand the heat and mass transfer enhancement mechanism in multi-components nanofluids.

AB - The objectives of this paper are to examine the effect of nanoparticles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for NH3/H2O absorption system. The binary nanofluids which mean binary mixture with nano-sized particles are tested to apply nanofluids to the absorption system. Al2O3 and carbon nanotube (CNT) particles are added to make the binary nanofluids in the binary mixture of NH3/H2O. The effect of Al2O3 nanoparticles and CNT on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of NH3 concentration, 0-0.08 vol% (volume fraction) of CNT particles, and 0-0.06 vol% of Al2O3 nanoparticles. For the NH3/H2O nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al2O3 nanoparticles were found to be 29% and 18% higher than those without nanoparticles, respectively. It is recommended that the concentration of 0.02 vol% of Al2O3 nanoparticles be the best candidate for NH3/H2O absorption performance enhancement in the present conditions. It is expected that this study will give some basic idea to understand the heat and mass transfer enhancement mechanism in multi-components nanofluids.

KW - Absorption system Ammonia-water Experiment

KW - Additive

KW - Aluminium

KW - Aqueous solution

KW - Heat transfer

KW - Mass transfer

KW - Nanotube

KW - Oxide

KW - Particle

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