Thermodynamic analysis and optimization of variable effect absorption refrigeration system using multi-island genetic algorithm

Low efficiency is one of the major concerns associated with absorption refrigeration cycle (ARC). The performance of ARC is affected by internal parameters such as the solution distribution ratio and the generator outlet solution concentration, especially to the absorption-generation heat exchange (...

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Bibliographic Details
Main Authors: Kong, X. (Author), Li, Q. (Author), Ma, H. (Author), Song, Q. (Author), Wang, D. (Author), Wang, X. (Author), Zhang, K. (Author)
Format: Article
Language:English
Published: Elsevier Ltd 2022
Subjects:
Online Access:View Fulltext in Publisher
LEADER 02986nam a2200481Ia 4500
001 10.1016-j.egyr.2022.04.004
008 220517s2022 CNT 000 0 und d
020 |a 23524847 (ISSN) 
245 1 0 |a Thermodynamic analysis and optimization of variable effect absorption refrigeration system using multi-island genetic algorithm 
260 0 |b Elsevier Ltd  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1016/j.egyr.2022.04.004 
520 3 |a Low efficiency is one of the major concerns associated with absorption refrigeration cycle (ARC). The performance of ARC is affected by internal parameters such as the solution distribution ratio and the generator outlet solution concentration, especially to the absorption-generation heat exchange (AGX) LiBr–water variable-effect ARC. Therefore, the performance of the AGX variable-effect ARC was optimized and analyzed. AGX variable-effect ARC thermodynamic model has been implemented in Engineering Equation Solver (EES). Operation parameters including temperatures of all the units of ARC, solution distribution ratio, and generator outlet solution concentration had been optimized. The effects of the solution distribution ratio and generator outlet solution concentration on constraint conditions, coefficient of performance (COP), exergy efficiency (ηex), and operating range had also been analyzed. Multi-island genetic algorithm (MIGA) was used to optimize the solution distribution ratio and generator outlet solution concentration. The results showed that the optimal COP for the AGX cycle was from 0.885 to 1.249 for THG from 95 °C to 140 °C. The optimized COP was increased by 10.65% on average and 45.49% on maximum, compared with the COP obtained at the same temperature. The MIGA optimization method had proven to be an effective and robust tool that could be utilized to the optimization of AGX variable-effect ARC. © 2022 The Author(s) 
650 0 4 |a Absorption refrigeration 
650 0 4 |a Absorption refrigeration system 
650 0 4 |a Absorption refrigeration system 
650 0 4 |a Bromine compounds 
650 0 4 |a Coefficient of Performance 
650 0 4 |a Distribution ratio 
650 0 4 |a Efficiency 
650 0 4 |a Genetic algorithms 
650 0 4 |a LiBr waters 
650 0 4 |a LiBr–water 
650 0 4 |a Lithium compounds 
650 0 4 |a Multi island genetic algorithms 
650 0 4 |a Multi-island genetic algorithm 
650 0 4 |a Refrigeration cycles 
650 0 4 |a Simulation 
650 0 4 |a Simulation 
650 0 4 |a Solution concentration 
650 0 4 |a Solution distribution 
650 0 4 |a Thermoanalysis 
650 0 4 |a Thermodynamic properties 
650 0 4 |a Variable-effect 
650 0 4 |a Variable-effect 
650 0 4 |a Water absorption 
700 1 |a Kong, X.  |e author 
700 1 |a Li, Q.  |e author 
700 1 |a Ma, H.  |e author 
700 1 |a Song, Q.  |e author 
700 1 |a Wang, D.  |e author 
700 1 |a Wang, X.  |e author 
700 1 |a Zhang, K.  |e author 
773 |t Energy Reports