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Polybranched regenerative generator-absorber heat exchange (GAX) cooling cycles.
Author(s) : STAICOVICI M. D.
Type of article: Article, IJR article
Summary
After a short characterization of today's advanced absorption cooling systems, of multi-effect and GAX-type, the paper introduces polybranched regenerative GAX cycles. A model is proposed and applied to cycles with one to three stages working with the ammonia/water-lithium bromide combination. Compared with those with vapour exchange, operated with water-ammonia, one of the best GAX cycles till now, a three-stage polybranched regenerative cycle has 1.25-1.9 times higher COP values and represents 71-82% of the Carnot cooling efficiency for lifts varying between 68 and 47 deg C. The polybranched regenerative cycle double-effect cycle, provided with rectification heat recovery, a two-stage polybranched regenerative cycle is constructively simpler and thermally with about 40% more performance.
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Pages: 318-329
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Details
- Original title: Polybranched regenerative generator-absorber heat exchange (GAX) cooling cycles.
- Record ID : 1996-1156
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 18 - n. 5
- Publication date: 1995/06
Links
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Indexing
- Themes: Heat pumps techniques
- Keywords: Generator; Regeneration; Recovery; Absorption system; Simulation; Heat pump; Performance; Multistage system; Heat exchanger; Absorber
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Performance evaluation of a generator-absorber ...
- Author(s) : GARIMELLA S., CHRISTENSEN R. N., LACY D.
- Date : 1996/07
- Languages : English
- Source: Applied Thermal Engineering - vol. 16 - n. 7
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Comparative COP evaluation on the advanced ammo...
- Author(s) : OZAKI E., IKUMI Y., MINATO K., SUGIYAMA T., YAMAGISHI K., HASHIMOTO I., KASHIWAGI T., LEE S. K.
- Date : 1996/09/17
- Languages : English
- Source: Ab-sorption 96. Towards sustainable technologies. Proceedings./ Ab-sorption 96. Vers les technologies durables. Comptes rendus.
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Modelling and experimental analysis of a GAX NH...
- Author(s) : APRILE M., SCOCCIA R., TOPPI T., et al.
- Date : 2016/06
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 66
- Formats : PDF
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-
GAX absorption cycles: recent developments have...
- Author(s) : ERICKSON D. C., RANE M. V.
- Date : 1992/12
- Languages : English
- Source: IEA HPC Newsl. - vol. 10 - n. 4
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Effective lift characterization of GAX cycles.
- Author(s) : ANAND G., ERICKSON D. C.
- Date : 2001
- Languages : English
- Source: ASHRAE Transactions. 2001 Winter Meeting, Atlanta, GA. Volume 107, part 1 + CD-ROM.
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