A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and Simulation
A three-dimensional CFD model of a novel configuration of catalytic micro-combustor inspired by the nasal geometry of reindeer was developed using the commercial code ANSYS Fluent 19.0. The thermal behavior of this nature-inspired (NI) configuration was investigated through simulations of lean propa...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-05-01
|
| Series: | Catalysts |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4344/10/6/606 |
| _version_ | 1797566485644705792 |
|---|---|
| author | Valeria Di Sarli Marco Trofa Almerinda Di Benedetto |
| author_facet | Valeria Di Sarli Marco Trofa Almerinda Di Benedetto |
| author_sort | Valeria Di Sarli |
| collection | DOAJ |
| description | A three-dimensional CFD model of a novel configuration of catalytic micro-combustor inspired by the nasal geometry of reindeer was developed using the commercial code ANSYS Fluent 19.0. The thermal behavior of this nature-inspired (NI) configuration was investigated through simulations of lean propane/air combustion performed at different values of residence time (i.e., inlet gas velocity) and (external convective) heat transfer coefficient. Simulations at the same conditions were also run for a standard parallel-channel (PC) configuration of equivalent dimensions. Numerical results show that the operating window of stable combustion is wider in the case of the NI configuration. In particular, the blow-out behavior is substantially the same for the two configurations. Conversely, the extinction behavior, which is dominated by competition between the heat losses towards the external environment and the heat produced by combustion, differs. The NI configuration exhibits a greater ability than the PC configuration to keep the heat generated by combustion trapped inside the micro-reactor. As a consequence, extinction occurs at higher values of residence time and heat transfer coefficient for this novel configuration. |
| first_indexed | 2024-03-10T19:28:28Z |
| format | Article |
| id | doaj.art-3289ec7822634638abb7a6b3d6e4544e |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T19:28:28Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-3289ec7822634638abb7a6b3d6e4544e2023-11-20T02:21:48ZengMDPI AGCatalysts2073-43442020-05-0110660610.3390/catal10060606A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and SimulationValeria Di Sarli0Marco Trofa1Almerinda Di Benedetto2Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche (CNR), Piazzale V. Tecchio 80, 80125 Napoli, ItalyDipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale V. Tecchio 80, 80125 Napoli, ItalyDipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale V. Tecchio 80, 80125 Napoli, ItalyA three-dimensional CFD model of a novel configuration of catalytic micro-combustor inspired by the nasal geometry of reindeer was developed using the commercial code ANSYS Fluent 19.0. The thermal behavior of this nature-inspired (NI) configuration was investigated through simulations of lean propane/air combustion performed at different values of residence time (i.e., inlet gas velocity) and (external convective) heat transfer coefficient. Simulations at the same conditions were also run for a standard parallel-channel (PC) configuration of equivalent dimensions. Numerical results show that the operating window of stable combustion is wider in the case of the NI configuration. In particular, the blow-out behavior is substantially the same for the two configurations. Conversely, the extinction behavior, which is dominated by competition between the heat losses towards the external environment and the heat produced by combustion, differs. The NI configuration exhibits a greater ability than the PC configuration to keep the heat generated by combustion trapped inside the micro-reactor. As a consequence, extinction occurs at higher values of residence time and heat transfer coefficient for this novel configuration.https://www.mdpi.com/2073-4344/10/6/606catalytic micro-combustorsbiomimeticsreindeer nosespiral geometryblow-outextinction |
| spellingShingle | Valeria Di Sarli Marco Trofa Almerinda Di Benedetto A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and Simulation Catalysts catalytic micro-combustors biomimetics reindeer nose spiral geometry blow-out extinction |
| title | A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and Simulation |
| title_full | A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and Simulation |
| title_fullStr | A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and Simulation |
| title_full_unstemmed | A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and Simulation |
| title_short | A Novel Catalytic Micro-Combustor Inspired by the Nasal Geometry of Reindeer: CFD Modeling and Simulation |
| title_sort | novel catalytic micro combustor inspired by the nasal geometry of reindeer cfd modeling and simulation |
| topic | catalytic micro-combustors biomimetics reindeer nose spiral geometry blow-out extinction |
| url | https://www.mdpi.com/2073-4344/10/6/606 |
| work_keys_str_mv | AT valeriadisarli anovelcatalyticmicrocombustorinspiredbythenasalgeometryofreindeercfdmodelingandsimulation AT marcotrofa anovelcatalyticmicrocombustorinspiredbythenasalgeometryofreindeercfdmodelingandsimulation AT almerindadibenedetto anovelcatalyticmicrocombustorinspiredbythenasalgeometryofreindeercfdmodelingandsimulation AT valeriadisarli novelcatalyticmicrocombustorinspiredbythenasalgeometryofreindeercfdmodelingandsimulation AT marcotrofa novelcatalyticmicrocombustorinspiredbythenasalgeometryofreindeercfdmodelingandsimulation AT almerindadibenedetto novelcatalyticmicrocombustorinspiredbythenasalgeometryofreindeercfdmodelingandsimulation |