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Experimental validation of a mini-channel multi-tube ammonia/water absorption/desorption model.

Number: pap. ID140

Author(s) : NEFS C. W. M., BOR D. M. van de, INFANTE FERREIRA C. A.

Summary

Mini-channel technology is a promising solution in a world where there is a growing demand for product miniaturization. In this paper the pressure drop characteristics and heat transfer performance of a prototype multi-tube mini-channel heat exchanger is investigated. Experimental data for both single phase water flows and two-phase ammonia/water mixture flows are reported. For the two-phase flows, absorption takes place in the shell side and desorption takes place in the tube side. An attempt is made to create a mathematical model which can predict the performance of the multi-tube mini-channel exchanger. Both empirical correlations and analytical derivations of conservation equations are used to identify which gives the best agreement with the experimental data.

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Pages: 8 p.

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Details

  • Original title: Experimental validation of a mini-channel multi-tube ammonia/water absorption/desorption model.
  • Record ID : 30012459
  • Languages: English
  • Source: 11th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
  • Publication date: 2014/08/02

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