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What causes crystallization in an absorption chiller? 

Chiller
Absorption refrigerator
Heat transfer
Hydronics
Solar energy

Answers from top 8 papers

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Papers (8)Insight
Journal Article•DOI
Thermodynamic Modeling of Absorption Chiller and Comparison with Experiments
Kim Choon Ng, Hui Tong Chua, Qian Han, Takao Kashiwagi, Atsushi Akisawa, T. Tsurusawa 
01 Jan 1999-Heat Transfer Engineering
18 Citations
To this end, we present evidence from an experimental facility to show that true absorption chiller behavior is ...
Journal Article•DOI
Marangoni flow and free convection during crystallization of a salt solution droplet
Geniy V. Kuznetsov, S.Y. Misyura, S.Y. Misyura, Roman S. Volkov, V.S. Morozov 
05 Jul 2019-Colloids and Surfaces A: Physicochemical and Engineering Aspects
52 Citations
These studies help to understand the mechanisms of convection during crystallization and suggest ways to control crystallization.
Journal Article•DOI
Transient modeling of a two-bed silica gel–water adsorption chiller
Hui Chua, Kim Choon Ng, W. Wang, Christopher Yap, Xiaolin Wang 
01 Feb 2004-International Journal of Heat and Mass Transfer
180 Citations
This provides useful information for adsorption chiller manufacturers.
Journal Article•DOI
Performance characteristics of a solar driven lithium bromide-water absorption chiller integrated with absorption energy storage
Nasiru I. Ibrahim, Fahad A. Al-Sulaiman, Farid Nasir Ani 
15 Oct 2017-Energy Conversion and Management
44 Citations
Hence, this indicates the possibility of integrating the absorption energy storage with absorption chiller.
Journal Article•DOI
Thermodynamic analysis of absorption chillers: Internal dissipation and process average temperature
Kim Choon Ng, K. Tu, Hui Tong Chua, Jeffrey M. Gordon, Takao Kashiwagi, Atsushi Akisawa, Bidyut Baran Saha 
01 Aug 1998-Applied Thermal Engineering
28 Citations
We also substantiate that commercial absorption chiller technology has empirically evolved to close to optimal operating conditions.
Journal Article•DOI
Mathematical modelling of a LiBr–H2O absorption chiller including two-dimensional distributions of temperature and concentration fields for heat and mass exchangers
Krzysztof Banasiak, J. Kozioł 
01 Sep 2009-International Journal of Thermal Sciences
22 Citations
The main practical advantage of the model is the possibility to assess the influence of both the geometry parameters and operation parameters on thermal performance of the absorption chiller.
Open access•Journal Article•DOI
Numerical Investigation on Solar Absorption Chiller with LiBr-H2O Operating Conditions and Performances
Raluca Porumb, Bogdan Porumb, Mugur C. Balan 
01 Mar 2017-Energy Procedia
21 Citations
The numerical model of the solar absorption chiller working cycle proved to be capable to describe the behaviour of the equipment and to evaluate the safe operating conditions from the crystallisation point of view and from degassing point of view.
Journal Article•DOI
Supporting district heating and cooling networks with a bifunctional solar assisted absorption chiller
Ahmad Arabkoohsar, Gorm Bruun Andresen 
15 Sep 2017-Energy Conversion and Management
63 Citations
The results show that the proposed system could make a 30% contribution to the heat preparation process of the absorption chiller during the summer and a 17% contribution seen over the entire year.

Related Questions

Why is water and lithium bromide used in absorption chiller?5 answersWater and lithium bromide are commonly used in absorption chillers due to their advantageous properties. Lithium bromide serves as the absorbent in the chiller, while water acts as the refrigerant. The combination of water and lithium bromide allows for efficient cooling without the need for a compressor. This system can be driven by low-grade energy sources like solar energy or waste heat, enhancing energy utilization and reducing power consumption. Additionally, the use of lithium bromide in the absorbent helps increase the energy efficiency ratio of the system, leading to higher refrigerating capacity. Furthermore, the integration of a mechanical vapor compressor in the conventional absorption cycle can enhance flexibility and peak load capability, as demonstrated in a hybrid absorption/compression chiller design.
What is the crystallization?4 answersCrystallization is the process of forming a phase with a highly ordered structure, where the basic building units are arranged in a 3D periodic lattice. It is a crucial process that produces crystals, which are essential for various industrial applications and scientific research. Crystallization is used to purify synthetic drug substances and intermediates, as well as to control bulk properties such as particle size, surface area, and flowability. It is also used to produce a wide range of materials, including sodium chloride, sodium and aluminium sulphates, and sucrose, with production rates exceeding 108 tonne/year. Crystallization is often preferred over distillation for purifying organic liquids due to lower enthalpies of crystallization and reduced energy requirements. Additionally, crystallization plays a key role in various processes such as freeze-concentration of fruit juices, desalination of sea water, recovery of valuable materials, and biotechnological operations. The kinetics of the crystallization process can be analyzed by considering factors such as crystal shape, diffusion properties of the solution, and the concentration changes in the sugar-containing liquid system.
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