Simulation and performance analysis of triple-effect absorption cycles

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Performance simulation has been carried out for several triple-effect cycles, designed to improve utilization of high temperature heat sources for absorption systems and capable of substantial performance improvement over equivalent double-effect cycles. The systems investigated include the three-condenser-three-desorber (3C3D) cycle, forming an extension of the conventional double-effect one; the recently proposed Double Condenser Coupled (DCC) cycle which recovers heat from the hot condensate leaving the high temperature condensers and adds it to the lower temperature desorbers; and the dual loop cycle comprising two complete single-effect loops, recovering heat from the condenser and absorber of one loop to the desorber of ... continued below

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26 p.

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Grossman, G.; Wilk, M. & DeVault, R.C. August 1, 1993.

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  • Grossman, G.
  • Wilk, M. Technion-Israel Inst. of Technology, Haifa (Israel). Faculty of Mechanical Engineering
  • DeVault, R.C. Oak Ridge National Lab., TN (United States). Energy Div.

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Description

Performance simulation has been carried out for several triple-effect cycles, designed to improve utilization of high temperature heat sources for absorption systems and capable of substantial performance improvement over equivalent double-effect cycles. The systems investigated include the three-condenser-three-desorber (3C3D) cycle, forming an extension of the conventional double-effect one; the recently proposed Double Condenser Coupled (DCC) cycle which recovers heat from the hot condensate leaving the high temperature condensers and adds it to the lower temperature desorbers; and the dual loop cycle comprising two complete single-effect loops, recovering heat from the condenser and absorber of one loop to the desorber of the other loop and generating a cooling effect in the evaporators of both loops. A modular computer code for simulation of absorption systems was used to investigate the performances of the cycles and compare them on an equivalent basis, by selecting a common reference design and operating condition. Performance simulation was carried out over a range of operating conditions, including some investigation of the influence of the design parameters. Coefficients of performance ranging from 1.27 for the series-flow 3C3D to 1.73 for the parallel-flow DCC have been calculated at the design point. The relative merits and shortcomings of the different cycle configurations has been studied.

Physical Description

26 p.

Notes

OSTI as DE96010034

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  • Winter meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), New Orleans, LA (United States), 22-26 Jan 1994

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  • Other: DE96010034
  • Report No.: CONF-940104--13
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 226033
  • Archival Resource Key: ark:/67531/metadc669071

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Office of Scientific & Technical Information Technical Reports

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  • August 1, 1993

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Jan. 21, 2016, 12:14 p.m.

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Grossman, G.; Wilk, M. & DeVault, R.C. Simulation and performance analysis of triple-effect absorption cycles, article, August 1, 1993; Tennessee. (digital.library.unt.edu/ark:/67531/metadc669071/: accessed July 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.