Performance analysis and optimization of new double effect lithium bromide–water absorption chiller with series and parallel flows

2019 ◽  
Vol 97 ◽  
pp. 73-87 ◽  
Author(s):  
Mahmood Chahartaghi ◽  
Hesam Golmohammadi ◽  
Arsalan Faghih Shojaei
Keyword(s):  
Performance Analysis ◽  
Water Absorption ◽  
Lithium Bromide ◽  
Double Effect ◽  
Absorption Chiller ◽  
Parallel Flows

Transient Modeling of a Lithium Bromide – Water Absorption Chiller

2013 ◽  
Vol 388 ◽  
pp. 83-90 ◽  
Author(s):  
Ang Li ◽  
Wai Soong Loh ◽  
Kim Choon Ng
Keyword(s):  
Water Absorption ◽  
Cooling Tower ◽  
Lithium Bromide ◽  
Cooling Water ◽  
Coefficient Of Performance ◽  
Absorption Chiller ◽  
Transient Model ◽  
Operation Conditions ◽  
Operation Process ◽  
Main Components

This article presents a thermodynamic framework for a lithium bromide – water absorption chiller, in which a transient model is developed to simulate the operation process. Local energy and mass balance within the main components like absorber, regenerator, condenser, evaporator and solution heat exchanger is respected to investigate the behavior of the chiller. Experimental correlations are used to predict heat transfer of the related working fluids. The cooling water is set to typical cooling tower conditions of tropical countries such as Singapore. The coefficient of performance (COP) is evaluated against a range of heat source temperatures from 75oC to 100oC. The results indicate the operation conditions of the chiller at its maximum COP is 95oC to 100oC.

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