
IIR document
Desorber and rectifier geometries for ammonia-water absorption systems; Part I: Experimental approach and heat transfer.
Author(s) : DELAHANTY J. C., HUGHES M., GARIMELLA S.
Type of article: IJR article
Summary
An experimental study of ammonia-water desorption in compact counter-flow geometries was conducted. Two novel vapor generation units, comprising integrated desorber, analyzer, and rectifier segments that use microchannel geometries, were conceptualized. The branched-tray concept features a desorber that uses pool-boiling mechanisms, while the vertical column desorber relies on falling-film evaporation mechanisms. Both concepts rely on falling-film mechanisms in the analyzer and rectifier sections. The vapor generation unit test sections were evaluated across a range of concentrated solution mass fractions (0.400 – 0.550), desorber coupling-fluid inlet temperatures (170 – 190°C), and concentrated solution flow rates (0.70 – 1.3 g s−1). This paper, Part I, reports the experimental methodology and results while in Part II, flooding limits of these geometries and heat and mass transfer models that accurately predict component-level performance are presented.
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Details
- Original title: Desorber and rectifier geometries for ammonia-water absorption systems; Part I: Experimental approach and heat transfer.
- Record ID : 30028158
- Languages: English
- Subject: Technology
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 123
- Publication date: 2021/03
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2020.10.020
- Document available for consultation in the library of the IIR headquarters only.
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Desorber and rectifier geometries for ammonia-w...
- Author(s) : DELAHANTY J. C., HUGHES M., GARIMELLA S.
- Date : 2021/02
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 122
- Formats : PDF
View record
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Optimization potentials for the absorber and th...
- Author(s) : MIRL N., SPINDLER K.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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Experimental assessment of a compact branched t...
- Author(s) : KEINATH C. M., HOYSALL D., DELAHANTY J. C., et al.
- Date : 2014/03/02
- Languages : English
- Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
- Formats : PDF
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Low-source-temperature diffusion absorption ref...
- Author(s) : RATTNER A. S., GARIMELLA S.
- Date : 2016/05
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 65
- Formats : PDF
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Heat and mass transfer during desorption of amm...
- Author(s) : BOR D. M. van de, LEEUWEN J. M. van, VASILESCU C., et al.
- Date : 2012/06/25
- Languages : English
- Source: 10th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2012). Proceedings. Delft, The Netherlands, June 25-27, 2012.
- Formats : PDF
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