Experimental study of the effect of some additives on falling film absorption

Sung Han Jung, Carl Sgamboti, Horacio Perez-Blanco

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    9 Scopus citations

    Abstract

    Addition of certain alcohol additives enhances the absorption rate of water in lithium-bromide solutions. Precise and systematic understanding of the enhancement mechanism is crucial for improvement of the absorption cycle performance. Open literature fails to provide an extensive data base for absorption in falling films. A falling film mini-absorber was designed and built to study experimentally the effect of some additives on the absorption of water in aqueous solutions of LiBr. The mini-absorber can be cleaned and any organics are eliminated by placement overnight in an oven at 500 °C [932 °F]. This paper presents experimental data using four different additives as well as no additives. 1-heptanol, 1-octanol, 3-octanol, and 2-ethyl-1-hexanol were chosen as test additives. The effect of the four additives in the falling film absorption was analyzed and compared with that in the previous stagnant pool absorption. This work will provide important information on the selection of additives in commercial absorption machines.

    Original languageEnglish (US)
    Title of host publicationProceedings of the International Absorption Heat Pump Conference
    PublisherPubl by ASME
    Pages49-55
    Number of pages7
    ISBN (Print)0791806987
    StatePublished - Jan 1 1994
    EventProceedings of the International Absorption Heat Pump Conference - New Orleans, LA, USA
    Duration: Jan 19 1994Jan 21 1994

    Publication series

    NameProceedings of the International Absorption Heat Pump Conference

    Other

    OtherProceedings of the International Absorption Heat Pump Conference
    CityNew Orleans, LA, USA
    Period1/19/941/21/94

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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  • Cite this

    Jung, S. H., Sgamboti, C., & Perez-Blanco, H. (1994). Experimental study of the effect of some additives on falling film absorption. In Proceedings of the International Absorption Heat Pump Conference (pp. 49-55). (Proceedings of the International Absorption Heat Pump Conference). Publ by ASME.