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

Jin Ki Lee, Chung Woo Jung, Yong Tae Kang

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)669-675
Number of pages7
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume32
Issue number9
DOIs
Publication statusPublished - 2008 Sep

Keywords

  • Absorptions
  • Al O
  • Ammonia/water
  • Binary nanofluids
  • CNT
  • Nano-particles

ASJC Scopus subject areas

  • Mechanical Engineering

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