Simulation and performance analysis of triple-effect absorption cycles
- Technion-Israel Inst. of Technology, Haifa (Israel). Faculty of Mechanical Engineering
- Oak Ridge National Lab., TN (United States). Energy Div.
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 226033
- Report Number(s):
- CONF-940104-13; ON: DE96010034; TRN: AHC29610%%75
- Resource Relation:
- Conference: Winter meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), New Orleans, LA (United States), 22-26 Jan 1994; Other Information: PBD: Aug 1993
- Country of Publication:
- United States
- Language:
- English
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