Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and helium
This paper presents the results of experimental and theoretical study of a diffusion absorption refrigerator using an original working fluid system constituted of R600 as refrigerant with low global warming potential, hydrocarbon n-nonane as absorbent and helium as auxiliary gas. The experimental pr...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | International Journal of Thermofluids |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666202725001934 |
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| author | R. Garma N. Ben-Ezzine A. Bellagi |
| author_facet | R. Garma N. Ben-Ezzine A. Bellagi |
| author_sort | R. Garma |
| collection | DOAJ |
| description | This paper presents the results of experimental and theoretical study of a diffusion absorption refrigerator using an original working fluid system constituted of R600 as refrigerant with low global warming potential, hydrocarbon n-nonane as absorbent and helium as auxiliary gas. The experimental prototype built and equipped with the necessary metrological sensors is connected to a computer to follow the measurements from start-up to steady state.With an adjustable heating system, the motive heat input to the generator can be varied, thus making it possible to study its effect on the performance of the refrigerator and to determine the minimum energy requirements to start cold production. Experimental results show that the temperature at the evaporator reaches -10 °C when the applied heat increases the generator temperature to 140 °C. The heat flow allowing optimal operation of the bubble pump is also determined.The collected experimental data is used to validate a developed HYSYS simulation model of the refrigerator. Simulations are then run to highlight the effect of different operating parameters on machine performance. |
| format | Article |
| id | doaj-art-94aa7a9f4b9448c4bf84cf3e2da8a257 |
| institution | OA Journals |
| issn | 2666-2027 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj-art-94aa7a9f4b9448c4bf84cf3e2da8a2572025-08-20T02:26:59ZengElsevierInternational Journal of Thermofluids2666-20272025-05-012710124610.1016/j.ijft.2025.101246Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and heliumR. Garma0N. Ben-Ezzine1A. Bellagi2University of Monastir, National Engineering School of Monastir, LRTTPI, Av. IbnJazzar, 5060, Monastir, TunisiaUniversity of Monastir, National Engineering School of Monastir, LRTTPI, Av. IbnJazzar, 5060, Monastir, Tunisia; University of Carthage, Faculty of Sciences of Bizerte, 7021, Zarzouna, Tunisia; Corresponding author at: University of Carthage, Faculty of Sciences of Bizerte, 7021, Zarzouna, Tunisia.University of Monastir, National Engineering School of Monastir, LRTTPI, Av. IbnJazzar, 5060, Monastir, TunisiaThis paper presents the results of experimental and theoretical study of a diffusion absorption refrigerator using an original working fluid system constituted of R600 as refrigerant with low global warming potential, hydrocarbon n-nonane as absorbent and helium as auxiliary gas. The experimental prototype built and equipped with the necessary metrological sensors is connected to a computer to follow the measurements from start-up to steady state.With an adjustable heating system, the motive heat input to the generator can be varied, thus making it possible to study its effect on the performance of the refrigerator and to determine the minimum energy requirements to start cold production. Experimental results show that the temperature at the evaporator reaches -10 °C when the applied heat increases the generator temperature to 140 °C. The heat flow allowing optimal operation of the bubble pump is also determined.The collected experimental data is used to validate a developed HYSYS simulation model of the refrigerator. Simulations are then run to highlight the effect of different operating parameters on machine performance.http://www.sciencedirect.com/science/article/pii/S2666202725001934Low GWPNatural refrigerantR600RefrigerationHeliumHydrocarbon |
| spellingShingle | R. Garma N. Ben-Ezzine A. Bellagi Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and helium International Journal of Thermofluids Low GWP Natural refrigerant R600 Refrigeration Helium Hydrocarbon |
| title | Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and helium |
| title_full | Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and helium |
| title_fullStr | Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and helium |
| title_full_unstemmed | Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and helium |
| title_short | Experimental and numerical investigation on diffusion-absorption refrigeration system using low GWP refrigerant R600, C9H20 and helium |
| title_sort | experimental and numerical investigation on diffusion absorption refrigeration system using low gwp refrigerant r600 c9h20 and helium |
| topic | Low GWP Natural refrigerant R600 Refrigeration Helium Hydrocarbon |
| url | http://www.sciencedirect.com/science/article/pii/S2666202725001934 |
| work_keys_str_mv | AT rgarma experimentalandnumericalinvestigationondiffusionabsorptionrefrigerationsystemusinglowgwprefrigerantr600c9h20andhelium AT nbenezzine experimentalandnumericalinvestigationondiffusionabsorptionrefrigerationsystemusinglowgwprefrigerantr600c9h20andhelium AT abellagi experimentalandnumericalinvestigationondiffusionabsorptionrefrigerationsystemusinglowgwprefrigerantr600c9h20andhelium |