Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System
In this work, the analysis of a hybrid LiBr/H<sub>2</sub>O absorption-cooling and flash-desalination system, using solar thermal energy as heat source, is presented. An absorption open-cycle with three pressure levels is used in combination with a single-stage flash-desalination process...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/13/15/3943 |
| _version_ | 1797560579408265216 |
|---|---|
| author | Nicolás Velázquez-Limón Ricardo López-Zavala Luis Hernández-Callejo Jesús A. Aguilar-Jiménez Sara Ojeda-Benítez Juan Ríos-Arriola |
| author_facet | Nicolás Velázquez-Limón Ricardo López-Zavala Luis Hernández-Callejo Jesús A. Aguilar-Jiménez Sara Ojeda-Benítez Juan Ríos-Arriola |
| author_sort | Nicolás Velázquez-Limón |
| collection | DOAJ |
| description | In this work, the analysis of a hybrid LiBr/H<sub>2</sub>O absorption-cooling and flash-desalination system, using solar thermal energy as heat source, is presented. An absorption open-cycle with three pressure levels is used in combination with a single-stage flash-desalination process to use the coolant as product water, resulting in an increase in cooling and desalination efficiency. For the application, a 20-room coastal hotel complex in San Felipe, Baja California, Mexico, is taken as a case study and the sizing of the solar collection and storage system is carried out for the operation of the proposed hybrid system, during the summer operative period. The operational dynamics during the week with the highest ambient temperatures are presented. The dimensioning of the solar collector’s area and the energy storage resulted in a collection area of 620 m<sup>2</sup> with 30 m<sup>3</sup>, respectively, reaching a solar fraction of 69%. The absorption-cooling subprocess showed an increase of 13.88% in the average coefficient of performance (COP) compared to conventional LiBr/H<sub>2</sub>O absorption systems. Also, considering that the system provides cooling and desalination simultaneously, the average COP<sub>G</sub> is 1.64, which is 2.27 times higher than the COP of conventional LiBr/H<sub>2</sub>O single-effect absorption units. During the critical week, the system presented a desalinated water production of 16.94 m<sup>3</sup> with an average performance ratio (PR) of 0.83, while the average daily water production was 2406 kg/day; enough to satisfy the daily water requirements of four people in a coastal hotel in Mexico or to cover the basic services of 24 people according to the World Health Organization. |
| first_indexed | 2024-03-10T18:02:45Z |
| format | Article |
| id | doaj.art-fdc2dc30f14e4901997d53bc7e61eec3 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T18:02:45Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-fdc2dc30f14e4901997d53bc7e61eec32023-11-20T08:46:19ZengMDPI AGEnergies1996-10732020-08-011315394310.3390/en13153943Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination SystemNicolás Velázquez-Limón0Ricardo López-Zavala1Luis Hernández-Callejo2Jesús A. Aguilar-Jiménez3Sara Ojeda-Benítez4Juan Ríos-Arriola5Centro de Estudios de las Energías Renovables, Instituto de Ingeniería, Universidad Autónoma de Baja California, Mexicali 21280, MexicoLaboratorio de Residuos Sólidos, Instituto de Ingeniería, Universidad Autónoma de Baja California, Mexicali 21280, MexicoDepartment of Agricultural Engineering and Forestry, Campus Universitario Duques de Soria, University of Valladolid (UVA), 42004 Soria, SpainCentro de Estudios de las Energías Renovables, Instituto de Ingeniería, Universidad Autónoma de Baja California, Mexicali 21280, MexicoLaboratorio de Residuos Sólidos, Instituto de Ingeniería, Universidad Autónoma de Baja California, Mexicali 21280, MexicoCentro de Estudios de las Energías Renovables, Instituto de Ingeniería, Universidad Autónoma de Baja California, Mexicali 21280, MexicoIn this work, the analysis of a hybrid LiBr/H<sub>2</sub>O absorption-cooling and flash-desalination system, using solar thermal energy as heat source, is presented. An absorption open-cycle with three pressure levels is used in combination with a single-stage flash-desalination process to use the coolant as product water, resulting in an increase in cooling and desalination efficiency. For the application, a 20-room coastal hotel complex in San Felipe, Baja California, Mexico, is taken as a case study and the sizing of the solar collection and storage system is carried out for the operation of the proposed hybrid system, during the summer operative period. The operational dynamics during the week with the highest ambient temperatures are presented. The dimensioning of the solar collector’s area and the energy storage resulted in a collection area of 620 m<sup>2</sup> with 30 m<sup>3</sup>, respectively, reaching a solar fraction of 69%. The absorption-cooling subprocess showed an increase of 13.88% in the average coefficient of performance (COP) compared to conventional LiBr/H<sub>2</sub>O absorption systems. Also, considering that the system provides cooling and desalination simultaneously, the average COP<sub>G</sub> is 1.64, which is 2.27 times higher than the COP of conventional LiBr/H<sub>2</sub>O single-effect absorption units. During the critical week, the system presented a desalinated water production of 16.94 m<sup>3</sup> with an average performance ratio (PR) of 0.83, while the average daily water production was 2406 kg/day; enough to satisfy the daily water requirements of four people in a coastal hotel in Mexico or to cover the basic services of 24 people according to the World Health Organization.https://www.mdpi.com/1996-1073/13/15/3943solar energyabsorption coolingdesalination |
| spellingShingle | Nicolás Velázquez-Limón Ricardo López-Zavala Luis Hernández-Callejo Jesús A. Aguilar-Jiménez Sara Ojeda-Benítez Juan Ríos-Arriola Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System Energies solar energy absorption cooling desalination |
| title | Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System |
| title_full | Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System |
| title_fullStr | Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System |
| title_full_unstemmed | Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System |
| title_short | Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System |
| title_sort | study of a hybrid solar absorption cooling and flash desalination system |
| topic | solar energy absorption cooling desalination |
| url | https://www.mdpi.com/1996-1073/13/15/3943 |
| work_keys_str_mv | AT nicolasvelazquezlimon studyofahybridsolarabsorptioncoolingandflashdesalinationsystem AT ricardolopezzavala studyofahybridsolarabsorptioncoolingandflashdesalinationsystem AT luishernandezcallejo studyofahybridsolarabsorptioncoolingandflashdesalinationsystem AT jesusaaguilarjimenez studyofahybridsolarabsorptioncoolingandflashdesalinationsystem AT saraojedabenitez studyofahybridsolarabsorptioncoolingandflashdesalinationsystem AT juanriosarriola studyofahybridsolarabsorptioncoolingandflashdesalinationsystem |