Compact bubble absorber design and analysis

T. Merrill, T. Setoguchi, Horacio Perez-Blanco

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)

Abstract

A study of tubular bubble absorption in a NH3-H2O solution and its application to the generator-absorber heater exchange absorption cycle (GAX) was performed. Design conditions for a compact bubble absorber, which included GAX load, NH3 vapor to be absorbed, and coolant energy quality for GAX purposes, and geometric constraints for a 1-ton refrigeration unit were determined. The performance of a first generation absorber design was determined experimentally. A second generation absorber was then designed, based on first generation experimental results. The second generation design employed judiciously chosen techniques for both heat and mass transfer enhancement. Heat transfer augmentation was achieved by repeated roughness, internal spacers, and increased thermal conductivity metal for absorber construction. Mass transfer augmentation was achieved through internal static mixers, variable cross-section flow areas, and numerous vapor injector designs. Performance of this second generation absorber was analyzed and possible directions for further improvement discussed.

Original languageEnglish (US)
Title of host publicationProceedings of the International Absorption Heat Pump Conference
PublisherPubl by ASME
Pages217-223
Number of pages7
ISBN (Print)0791806987
StatePublished - Jan 1 1994
EventProceedings of the International Absorption Heat Pump Conference - New Orleans, LA, USA
Duration: Jan 19 1994Jan 21 1994

Other

OtherProceedings of the International Absorption Heat Pump Conference
CityNew Orleans, LA, USA
Period1/19/941/21/94

Fingerprint

Mass transfer
Vapors
Heat transfer
Refrigeration
Bubbles (in fluids)
Coolants
Thermal conductivity
Surface roughness
Metals

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Merrill, T., Setoguchi, T., & Perez-Blanco, H. (1994). Compact bubble absorber design and analysis. In Proceedings of the International Absorption Heat Pump Conference (pp. 217-223). Publ by ASME.
Merrill, T. ; Setoguchi, T. ; Perez-Blanco, Horacio. / Compact bubble absorber design and analysis. Proceedings of the International Absorption Heat Pump Conference. Publ by ASME, 1994. pp. 217-223
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Merrill, T, Setoguchi, T & Perez-Blanco, H 1994, Compact bubble absorber design and analysis. in Proceedings of the International Absorption Heat Pump Conference. Publ by ASME, pp. 217-223, Proceedings of the International Absorption Heat Pump Conference, New Orleans, LA, USA, 1/19/94.

Compact bubble absorber design and analysis. / Merrill, T.; Setoguchi, T.; Perez-Blanco, Horacio.

Proceedings of the International Absorption Heat Pump Conference. Publ by ASME, 1994. p. 217-223.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - A study of tubular bubble absorption in a NH3-H2O solution and its application to the generator-absorber heater exchange absorption cycle (GAX) was performed. Design conditions for a compact bubble absorber, which included GAX load, NH3 vapor to be absorbed, and coolant energy quality for GAX purposes, and geometric constraints for a 1-ton refrigeration unit were determined. The performance of a first generation absorber design was determined experimentally. A second generation absorber was then designed, based on first generation experimental results. The second generation design employed judiciously chosen techniques for both heat and mass transfer enhancement. Heat transfer augmentation was achieved by repeated roughness, internal spacers, and increased thermal conductivity metal for absorber construction. Mass transfer augmentation was achieved through internal static mixers, variable cross-section flow areas, and numerous vapor injector designs. Performance of this second generation absorber was analyzed and possible directions for further improvement discussed.

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Merrill T, Setoguchi T, Perez-Blanco H. Compact bubble absorber design and analysis. In Proceedings of the International Absorption Heat Pump Conference. Publ by ASME. 1994. p. 217-223