Performance analysis of a dual component generator-condenser of an absorption heat transformer for water desalination
| Autor: | D. Juárez-Romero, A. Huicochea, L.I. Morales, R. Saravanan, J. Delgado-Gonzaga, A. Márquez-Nolasco |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science Water flow 020209 energy Nuclear engineering 02 engineering and technology Heat transfer coefficient Desalination law.invention Refrigerant 020401 chemical engineering law Desorption 0202 electrical engineering electronic engineering information engineering Water cooling Wetting 0204 chemical engineering Transformer |
| Zdroj: | Thermal Science and Engineering Progress. 20:100651 |
| ISSN: | 2451-9049 |
| DOI: | 10.1016/j.tsep.2020.100651 |
| Popis: | The purpose of this work is to evaluate the behavior of a novel dual component: generator-condenser (GE-CO) applied to a single-stage absorption heat transformer for water desalination (SAHT-WD) by simple evaporation that operates with a LiBr-H2O mixture. The GE-CO consists of two sections located in the same shell, where desorption and condensation occur simultaneously. The evaluation has been divided into an experimental and a theoretical analysis. The experimental analysis is focused on determining the operating conditions that favor the performance of the GE-CO and the overall SAHT-WD. To estimate the heat transfer coefficients and wetting efficiencies based on the experimental results, a mathematical model that considers variation of the inlet absorption mixture stream, the refrigerant, the heating and cooling water was constructed. The results indicate a good coupling between the GE-CO and the AHT, with maximum values of COP and desalinated water flow of 0.49 and 3.91 × 10−4 kg/s. The maximum specific desalination rate (SDR) of the AHT-WP was 1.10 × 10−4 kg/s/kW. Both in the GE and CO, the heat transfers of the film of the absorbent mixture and the refrigerant respectively, limit the heat transfer process. |
| Databáze: | OpenAIRE |
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