Experiment on heat transfer and absorption performance enhancement for binary nanofluids (NH3/H2O + nano-particles)

Jin Ki Lee; Chung Woo Jung; Yong Tae Kang

doi:10.3795/KSME-B.2008.32.9.669

Experiment on heat transfer and absorption performance enhancement for binary nanofluids (NH₃/H₂O + nano-particles)

Jin Ki Lee, Chung Woo Jung, Yong Tae Kang

School of Mechanical Engineering

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

1 Citation (Scopus)

Abstract

The objectives of this paper are to examine the effect of nano-particles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for ammonia/water absorption system. The effect of Al₂O₃ nano-particles and carbon nanotube(CNT) on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of ammonia concentration, 0-0.08 vol% (volume fraction) of CNT particles, and 0-0.06 vol% of Al ₂O₃ nano-particles. For the ammonia/water nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al₂O ₃ nano-particles were found to be 29% and 18% higher than those without nano-particles, respectively. It is recommended that the concentration of 0.02 vol% of Al₂O₃ nano-particles be the best candidate for ammonia/water absorption performance enhancement.

Original language	English
Pages (from-to)	669-675
Number of pages	7
Journal	Transactions of the Korean Society of Mechanical Engineers, B
Volume	32
Issue number	9
DOIs	https://doi.org/10.3795/KSME-B.2008.32.9.669
Publication status	Published - 2008 Sept

Keywords

Absorptions
Ammonia/water
Binary nanofluids
CNT
Nano-particles

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.3795/KSME-B.2008.32.9.669

Cite this

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title = "Experiment on heat transfer and absorption performance enhancement for binary nanofluids (NH3/H2O + nano-particles)",

abstract = "The objectives of this paper are to examine the effect of nano-particles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for ammonia/water absorption system. The effect of Al2O3 nano-particles and carbon nanotube(CNT) on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of ammonia concentration, 0-0.08 vol% (volume fraction) of CNT particles, and 0-0.06 vol% of Al 2O3 nano-particles. For the ammonia/water nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al2O 3 nano-particles were found to be 29% and 18% higher than those without nano-particles, respectively. It is recommended that the concentration of 0.02 vol% of Al2O3 nano-particles be the best candidate for ammonia/water absorption performance enhancement.",

keywords = "Absorptions, Ammonia/water, Binary nanofluids, CNT, Nano-particles",

author = "Lee, {Jin Ki} and Jung, {Chung Woo} and Kang, {Yong Tae}",

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AB - The objectives of this paper are to examine the effect of nano-particles on the pool type absorption heat transfer enhancement and to find the optimal conditions to design a highly effective compact absorber for ammonia/water absorption system. The effect of Al2O3 nano-particles and carbon nanotube(CNT) on the absorption performance is studied experimentally. The experimental ranges of the key parameters are 20% of ammonia concentration, 0-0.08 vol% (volume fraction) of CNT particles, and 0-0.06 vol% of Al 2O3 nano-particles. For the ammonia/water nanofluids, the heat transfer rate and absorption rate with 0.02 vol% Al2O 3 nano-particles were found to be 29% and 18% higher than those without nano-particles, respectively. It is recommended that the concentration of 0.02 vol% of Al2O3 nano-particles be the best candidate for ammonia/water absorption performance enhancement.

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