ShareNumerical model of ammonia-water absorption inside a vertical tube.
Author(s) : GOMMED K., GROSSMAN G., KOENIG M.
Summary
Falling film reactors have been proposed and are employed as absorbers, condensers and heat recovery devices in advanced ammonia-water heat pump systems. The problem is similar in some respects to that of condensation of non-azeotropic refrigerant mixtures. However, here the process begins with an already existing liquid film of finite thickness whose flow characteristics and thermophysical properties influence the absorption process. The physical model is based on conservation of mass, momentum, energy and species. The design of the model is described. The results of the model describe the behaviour of the absorption process and its dependence on the various parameters. Temperature and concentration profiles have been calculated and the heat and mass fluxes have been evaluated, which yield heat and mass transfer coefficients.
Details
- Original title: Numerical model of ammonia-water absorption inside a vertical tube.
- Record ID : 2000-2927
- Languages: English
- Source: Proceedings of the International Sorption Heat Pump Conference.
- Publication date: 1999/03/24
- Document available for consultation in the library of the IIR headquarters only.
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- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
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- Author(s) : WASSENAAR R. H., SEGAL A.
- Date : 1998/07/06
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- Source: Thermodynamics, heat and mass transfer of refrigeration machines and heat pumps. Proceedings of the EUROTHERM Seminar 59./ Thermodynamique et transferts de chaleur et de masse dans les machines à froid et pompes à chaleur. Comptes rendus du séminaire EUROTHERM 59.
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Thermodynamic data in a falling film absorber o...
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- Date : 1999/03/24
- Languages : English
- Source: Proceedings of the International Sorption Heat Pump Conference.
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- Author(s) : WADA D., OHNO K., SAITO K.
- Date : 2011/04/06
- Languages : English
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- Formats : PDF
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