Experimental Study on Ammonia-Water Bubble Absorption in External Magnetic Field

Abstract:

Absorber is a key component of absorption refrigeration system, in which there is a complicated heat and mass transfer. To improve the performance of absorber, the magnetic field was used as a enhancing way, the experiments of NH₃/H₂O bubble absorption in magnetic field were carried out. The results showed that the NH₃/H₂O bubble absorption can be strengthened by the magnetic field. Both AR(absorption rate) and EAR(effective absorption ratio) increase with the increase of magnetic intensity within the range of 0~280mT. The EAR is always higher than 1 when the external magnetic field exists. The EAR reaches the maximum 1.069 when the initial ammonia concentration is 20wt% and the magnetic intensity is 280mT. The primary strengthening mechanisms are also explained.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 1653-1656
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.1653
• Online since: July 2011
• Authors: Wei Dong Wu, Zeng Yang Li, Sheng Xiang Chen, Si Mei Liu
• Keywords: Ammonia, Bubble Absorption, Heat and Mass Transfer, Magnetic Field

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