Design and analysis of the absorber component in waste-heat-driven diffusion absorption refrigeration systems

Alexander S. Rattner, Srinivas Garimella

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

Abstract

The diffusion absorption refrigeration (DAR) cycle can provide refrigeration in remote locations using waste-heat or other low-grade-thermal input. Unlike conventional absorption systems, the DAR cycle receives no mechanical input, so all flows must be driven by passive mechanisms. Further, a third inert gas is employed to allow refrigerant expansion since conventional throttling devices impart large pressure drops. Thus, DAR absorber design is challenging due to increased mass transfer resistance from the inert gas, multiple outlet flow paths for the inert gas and solution, and limited (passive) external cooling. In the present study, a detailed, coupled heat and mass transfer model is developed for a counter-flow serpentine-tube DAR absorber. The model is applied to the analysis of an absorber for a small-scale refrigeration system with a 36 W cooling capacity. Studies are conducted to investigate the effect of key configuration and operational parameters on absorber performance, and guidelines are provided for component and system design.

Original languageEnglish (US)
Title of host publicationASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Pages459-474
Number of pages16
DOIs
Publication statusPublished - Dec 1 2012
EventASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 - Rio Grande, Puerto Rico
Duration: Jul 8 2012Jul 12 2012

Publication series

NameASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Volume1

Other

OtherASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
CountryPuerto Rico
CityRio Grande
Period7/8/127/12/12

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All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

Rattner, A. S., & Garimella, S. (2012). Design and analysis of the absorber component in waste-heat-driven diffusion absorption refrigeration systems. In ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 (pp. 459-474). (ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012; Vol. 1). https://doi.org/10.1115/HT2012-58608