Simulation of operating conditions and working fluids for organic Rankine cycles
Operating conditions for different fluids in Organic Rankine Cycles using low grade energies were compared. The following fluids were used: R152a (1,1-difluroethane), R-290 (propane), R-600a (2-methylpropane or isobutane), R-744 (CO2) y R-1270 (propylene). Simulation with HYSYS v3.2 was used to supp...
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Universidad Pedagógica y Tecnológica de Colombia
2020
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| Online Access: | https://revistas.uptc.edu.co/index.php/investigacion_duitama/article/view/10213 |
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| author | Hernández-Fernández, Nerio José Zumalacárregui-de Cárdenas, Lourdes Pérez-Ones, Osney |
| author_facet | Hernández-Fernández, Nerio José Zumalacárregui-de Cárdenas, Lourdes Pérez-Ones, Osney |
| author_sort | Hernández-Fernández, Nerio José |
| collection | OJS |
| description | Operating conditions for different fluids in Organic Rankine Cycles using low grade energies were compared. The following fluids were used: R152a (1,1-difluroethane), R-290 (propane), R-600a (2-methylpropane or isobutane), R-744 (CO2) y R-1270 (propylene). Simulation with HYSYS v3.2 was used to support the research. Organic Rankine cycle was studied. Also, the following modifications were studied: reheating, regeneration and reheating-regeneration. Regeneration cycle showed the best results, however, thermal efficiencies were lower than 10%. Operating conditions were simulated in order to increase this value. It was determined that the fluid that presented the best behavior was the R-600a refrigerant, using a Rankine with regeneration cycle operating between 3 500 kPa and 150 ºC at the turbine entrance and 700 kPa in the condenser. A thermal efficiency of 15.33 % was obtained and 7.11 kW of electric power can be produced. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-10213 |
| institution | Revista de Investigación, Desarrollo e Innovación (RIDI) |
| language | spa |
| publishDate | 2020 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-102132021-12-09T14:33:39Z Simulation of operating conditions and working fluids for organic Rankine cycles Simulación de condiciones de operación y fluidos de trabajo para ciclos Rankine orgánicos Hernández-Fernández, Nerio José Zumalacárregui-de Cárdenas, Lourdes Pérez-Ones, Osney power cycle; organic Rankine cycle; organic fluids; process simulation ciclos de potencia; ciclo Rankine orgánico; fluidos orgánicos; simulador de procesos Operating conditions for different fluids in Organic Rankine Cycles using low grade energies were compared. The following fluids were used: R152a (1,1-difluroethane), R-290 (propane), R-600a (2-methylpropane or isobutane), R-744 (CO2) y R-1270 (propylene). Simulation with HYSYS v3.2 was used to support the research. Organic Rankine cycle was studied. Also, the following modifications were studied: reheating, regeneration and reheating-regeneration. Regeneration cycle showed the best results, however, thermal efficiencies were lower than 10%. Operating conditions were simulated in order to increase this value. It was determined that the fluid that presented the best behavior was the R-600a refrigerant, using a Rankine with regeneration cycle operating between 3 500 kPa and 150 ºC at the turbine entrance and 700 kPa in the condenser. A thermal efficiency of 15.33 % was obtained and 7.11 kW of electric power can be produced. En el presente trabajo se comparan condiciones de operación para diferentes fluidos en ciclos de Rankine orgánicos, que utilicen energías de bajo grado. Los fluidos estudiados fueron: R152a (1,1-difluroetano), R-290 (propano), R-600a (2-metilpropano o isobutano), R-744 (dióxido de carbono), y R-1270 (propileno). Se realizó la simulación del ciclo de Rankine orgánico y de sus modificaciones: ciclo con recalentamiento intermedio, ciclo de regeneración y ciclo con recalentamiento y regeneración. Se usó el simulador de procesos HYSYS v3.2. Los mejores resultados se alcanzaron para el ciclo con regeneración, aunque los rendimientos térmicos fueron inferiores al 10%. Se simularon condiciones de operación que permitieran superar este valor, lo cual se logró con el refrigerante R-600a en el ciclo Rankine con regeneración, que opere entre 3 500 kPa y 150 ºC a la entrada de la turbina, y 700 kPa en el condensador. Con ello se obtiene un rendimiento térmico de 15,33% y se producen 7,11 kW de potencia eléctrica. Universidad Pedagógica y Tecnológica de Colombia 2020-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/xml https://revistas.uptc.edu.co/index.php/investigacion_duitama/article/view/10213 10.19053/20278306.v10.n2.2020.10213 Revista de Investigación, Desarrollo e Innovación; Vol. 10 No. 2 (2020): Enero-Junio; 349-358 Revista de Investigación, Desarrollo e Innovación; Vol. 10 Núm. 2 (2020): Enero-Junio; 349-358 2389-9417 2027-8306 spa https://revistas.uptc.edu.co/index.php/investigacion_duitama/article/view/10213/9004 https://revistas.uptc.edu.co/index.php/investigacion_duitama/article/view/10213/11227 Derechos de autor 2020 REVISTA DE INVESTIGACIÓN, DESARROLLO E INNOVACIÓN |
| spellingShingle | power cycle; organic Rankine cycle; organic fluids; process simulation ciclos de potencia; ciclo Rankine orgánico; fluidos orgánicos; simulador de procesos Hernández-Fernández, Nerio José Zumalacárregui-de Cárdenas, Lourdes Pérez-Ones, Osney Simulation of operating conditions and working fluids for organic Rankine cycles |
| title | Simulation of operating conditions and working fluids for organic Rankine cycles |
| title_alt | Simulación de condiciones de operación y fluidos de trabajo para ciclos Rankine orgánicos |
| title_full | Simulation of operating conditions and working fluids for organic Rankine cycles |
| title_fullStr | Simulation of operating conditions and working fluids for organic Rankine cycles |
| title_full_unstemmed | Simulation of operating conditions and working fluids for organic Rankine cycles |
| title_short | Simulation of operating conditions and working fluids for organic Rankine cycles |
| title_sort | simulation of operating conditions and working fluids for organic rankine cycles |
| topic | power cycle; organic Rankine cycle; organic fluids; process simulation ciclos de potencia; ciclo Rankine orgánico; fluidos orgánicos; simulador de procesos |
| topic_facet | power cycle; organic Rankine cycle; organic fluids; process simulation ciclos de potencia; ciclo Rankine orgánico; fluidos orgánicos; simulador de procesos |
| url | https://revistas.uptc.edu.co/index.php/investigacion_duitama/article/view/10213 |
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