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Development of a high performance and compact absorber for absorption refrigerator (absorption heat transfer characteristics of a horizontal smooth tube type absorber).

[In Japanese. / En japonais.]

Author(s) : NISHIMURA N., NOMURA T., IYOTA H., et al.

Type of article: Article

Summary

A prototype experimental absorber which enables us to observe a falling film of aqueous lithium bromide on the tubes optically was manufactured. The absorber consists of 13 horizontal smooth tubes. Absorption experiments were carried out with a use of n-octanol as a surfactant. The behaviour of solution flow was observed using a high speed video camera. Moreover, temperature distributions of the falling film of aqueous lithium bromide, cooling water and heat transfer tubes' surfaces were measured. The ratios of wettability of tubes' surface were estimated, and heat transfer values evaluated. The refrigerating capacity increases to double with increasing surfactant concentration up until its solubility limit due to the spread of wet surface of tubes.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2001-2723
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 17 - n. 3
  • Publication date: 2000
  • Document available for consultation in the library of the IIR headquarters only.

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