Análisis energético y exergético de un sistema de refrigeración absorción-difusión con diferentes fuentes de calor
In this work an energetic and exergetic evaluation of an absorption-diffusion refrigeration system operating with renewable energy sources is performed, the sources evaluated were photovoltaic solar energy, biogas obtained from rumen content, and gasification gas from corn residues, which have a hig...
- Autores:
-
Rhenals Julio, Jesús David
- Tipo de recurso:
- Fecha de publicación:
- 2021
- Institución:
- Corporación Universidad de la Costa
- Repositorio:
- REDICUC - Repositorio CUC
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.cuc.edu.co:11323/8516
- Acceso en línea:
- https://hdl.handle.net/11323/8516
https://repositorio.cuc.edu.co/
- Palabra clave:
- Renewable energies
Cooling
Exergy
Absorption-diffusion
Biomass
Solar radiation
Energías renovables
Refrigeración
Exergía
Absorción-difusión
Biomasa
Radiación solar
- Rights
- openAccess
- License
- Attribution-NonCommercial-ShareAlike 4.0 International
| Summary: | In this work an energetic and exergetic evaluation of an absorption-diffusion refrigeration system operating with renewable energy sources is performed, the sources evaluated were photovoltaic solar energy, biogas obtained from rumen content, and gasification gas from corn residues, which have a high potential in the department of Cordoba. Initially, an energetic characterization of the studied sources was carried out; for biogas and gasification gas, the thermochemical characteristics of the biomasses and the composition and calorific value of the fuel gas were determined, obtaining lower calorific values of 30 MJ/kg for biogas and 5,18 MJ/kg for gasification gas. In the case of solar energy, using a Gaussian model for hourly radiation, the operating hours of the refrigeration system operating with this source were estimated, obtaining an operating time between 6.5 and 7.56 hours per day. Subsequently, the energy and exergy analysis of the system was carried out, calculating the performance coefficients with each energy source; biogas showed a performance coefficient of 0,18 in energy and 0,2 in exergy, while solar energy had a performance of 0,095 in energy and 0,0065 in exergy, and gasification gas had a performance of 0,06 in energy and 0,022 in exergy. Finally, the economic analysis of the system showed that the source with the lowest operating costs is photovoltaic solar energy, so the use of this source is recommended for cooling in non-interconnected areas of the department. |
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