Evaluation of desalination technologies for small scale application
The growing demand for drinking water has led to the exploration of sustainable and efficient alternatives in the desalination process. Conventional methods, such as reverse osmosis, flash multistage evaporation and multiple effects distillation, face challenges in small-scale applicability, especia...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Facultad de Ciencias Exactas y Naturales y Agrimensura
2024
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/fce/article/view/7797 |
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I48-R154-article-77972024-12-26T15:40:24Z Evaluation of desalination technologies for small scale application Evaluación de tecnologías de desalinización para su aplicación a pequeña escala Scozzina Unterholzner, Emilio Sebastián Vera, Luis Horacio Lorenzo, Héctor Guillermo Cáceres, Manuel Firman, Andrés Desalinización del agua Energía solar Humidificación - Deshumidificación Water desalination Solar energy Humidification – Dehumidification The growing demand for drinking water has led to the exploration of sustainable and efficient alternatives in the desalination process. Conventional methods, such as reverse osmosis, flash multistage evaporation and multiple effects distillation, face challenges in small-scale applicability, especially in rural areas with electricity access restrictions. This article focuses on comparing these technologies with the innovative air humidification-dehumidification (HDH) process for the production of 100 liters/hour of desalinated water. Mass and energy balances were used to evaluate the efficiency of each technology, specifically the amount of thermal energy needed per volume of desalinated water, and the area of solar collectors necessary for the process. Open and closed circuit configurations with and without regeneration were considered. Initial results reveal that in an open-loop configuration without regeneration, the thermal energy consumption in the HDH process is 3.6 and 5.5 times higher compared to the MSF and MED processes, respectively. In conclusion, despite higher thermal energy consumption, compared to MED and RO technologies, the HDH process presents significant advantages in terms of reduced initial and maintenance costs. Furthermore, the modularity of the system allows it to be adapted to various water demands, from small quantities to more significant volumes. La creciente demanda de agua potable ha llevado a explorar alternativas sostenibles y eficientes en el proceso de desalinización. Los métodos convencionales, como la ósmosis inversa, la evaporación multietapa instantánea y desalinización multiples efectos, enfrentan desafíos en la aplicabilidad a pequeña escala, especialmente en áreas rurales con restricciones de acceso a la energía eléctrica. Este artículo se centra en comparar estas tecnologías con el innovador proceso de humidificación-deshumidificación del aire (HDH) para la producción de 100 litros/ hora de agua desalinizada. Se emplearon balances masicos y energéticos para evaluar la eficiencia de cada tecnología, específicamente la cantidad de energía térmica necesaria por volumen de agua desalinizada, y el área de colectores solares necesarias para el proceso. Se consideraron configuraciones de circuito abierto y cerrado con y sin regeneración. Los resultados iniciales revelan que, en una configuración de circuito abierto sin regeneración, el consumo de energía térmica en el proceso HDH es 3,6 y 5,5 veces mayor en comparación con los procesos MSF y MED, respectivamente. En conclusión, a pesar de un mayor consumo de energía térmica, en comparación con las tecnologías MED y RO, el proceso HDH presenta ventajas significativas en términos de costos iniciales y de mantenimiento reducidos. Además, la modularidad del sistema permite adaptarse a diversas demandas de agua, desde pequeñas cantidades hasta volúmenes más significativos. Facultad de Ciencias Exactas y Naturales y Agrimensura 2024-12-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/fce/article/view/7797 10.30972/fac.3427797 FACENA; Vol. 34 Núm. 2 (2024); 249-269 1851-507X 0325-4216 spa https://revistas.unne.edu.ar/index.php/fce/article/view/7797/7501 |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-154 |
| container_title_str |
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
| language |
Español |
| format |
Artículo revista |
| topic |
Desalinización del agua Energía solar Humidificación - Deshumidificación Water desalination Solar energy Humidification – Dehumidification |
| spellingShingle |
Desalinización del agua Energía solar Humidificación - Deshumidificación Water desalination Solar energy Humidification – Dehumidification Scozzina Unterholzner, Emilio Sebastián Vera, Luis Horacio Lorenzo, Héctor Guillermo Cáceres, Manuel Firman, Andrés Evaluation of desalination technologies for small scale application |
| topic_facet |
Desalinización del agua Energía solar Humidificación - Deshumidificación Water desalination Solar energy Humidification – Dehumidification |
| author |
Scozzina Unterholzner, Emilio Sebastián Vera, Luis Horacio Lorenzo, Héctor Guillermo Cáceres, Manuel Firman, Andrés |
| author_facet |
Scozzina Unterholzner, Emilio Sebastián Vera, Luis Horacio Lorenzo, Héctor Guillermo Cáceres, Manuel Firman, Andrés |
| author_sort |
Scozzina Unterholzner, Emilio Sebastián |
| title |
Evaluation of desalination technologies for small scale application |
| title_short |
Evaluation of desalination technologies for small scale application |
| title_full |
Evaluation of desalination technologies for small scale application |
| title_fullStr |
Evaluation of desalination technologies for small scale application |
| title_full_unstemmed |
Evaluation of desalination technologies for small scale application |
| title_sort |
evaluation of desalination technologies for small scale application |
| description |
The growing demand for drinking water has led to the exploration of sustainable and efficient alternatives in the desalination process. Conventional methods, such as reverse osmosis, flash multistage evaporation and multiple effects distillation, face challenges in small-scale applicability, especially in rural areas with electricity access restrictions. This article focuses on comparing these technologies with the innovative air humidification-dehumidification (HDH) process for the production of 100 liters/hour of desalinated water. Mass and energy balances were used to evaluate the efficiency of each technology, specifically the amount of thermal energy needed per volume of desalinated water, and the area of solar collectors necessary for the process. Open and closed circuit configurations with and without regeneration were considered. Initial results reveal that in an open-loop configuration without regeneration, the thermal energy consumption in the HDH process is 3.6 and 5.5 times higher compared to the MSF and MED processes, respectively. In conclusion, despite higher thermal energy consumption, compared to MED and RO technologies, the HDH process presents significant advantages in terms of reduced initial and maintenance costs. Furthermore, the modularity of the system allows it to be adapted to various water demands, from small quantities to more significant volumes. |
| publisher |
Facultad de Ciencias Exactas y Naturales y Agrimensura |
| publishDate |
2024 |
| url |
https://revistas.unne.edu.ar/index.php/fce/article/view/7797 |
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