Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporator
Present work focuses on frost accretion in a spine-finned inverted-V tube array evaporator. An experimental evaluation was performed using a standard issue, vertical top-mount, 18 cubic feet, 0.5 m3, refrigerator. Evaporator temperature distribution, inner airflow velocity, and relative humidity wer...
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| 格式: | 文件 |
| 语言: | English |
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Frontiers Media S.A.
2023-02-01
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| 丛编: | Frontiers in Mechanical Engineering |
| 主题: | |
| 在线阅读: | https://www.frontiersin.org/articles/10.3389/fmech.2023.1101425/full |
| _version_ | 1828005157645844480 |
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| author | I. Carvajal-Mariscal J. E. De León-Ruiz J. M. Belman-Flores E. Martínez-Espinosa O. José-Pineda |
| author_facet | I. Carvajal-Mariscal J. E. De León-Ruiz J. M. Belman-Flores E. Martínez-Espinosa O. José-Pineda |
| author_sort | I. Carvajal-Mariscal |
| collection | DOAJ |
| description | Present work focuses on frost accretion in a spine-finned inverted-V tube array evaporator. An experimental evaluation was performed using a standard issue, vertical top-mount, 18 cubic feet, 0.5 m3, refrigerator. Evaporator temperature distribution, inner airflow velocity, and relative humidity were measured to account for convective phenomena influencing frost distribution. Frost formation and accretion on the surface of the evaporator were visualized using thermal and microscopic imagery. The images were processed using a machine vision algorithm to measure frost thickness. Complementarily, frost density and vapor mass transfer were computed using available correlations. An estimation function was derived from the compiled data using a semi empirical approach, i.e., direct measurements and thermophysical substance properties. The resulting mathematical expression estimated the frost accretion rate within an error expectancy, RMSE, of 0.1479 and displayed a goodness-of-fit, R-Squared, of 0.9029. Based on these results, semi empirical estimation, is proposed as a viable approach to construct adequate limits for new predictions, vis-à-vis evaporator performance, ultimately reducing appliance energy consumption via implementing more effective control strategies regarding internal defrosting. |
| first_indexed | 2024-04-10T07:26:48Z |
| format | Article |
| id | doaj.art-cfa616de0f974ef4b68ff765fc178e77 |
| institution | Directory Open Access Journal |
| issn | 2297-3079 |
| language | English |
| last_indexed | 2024-04-10T07:26:48Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Mechanical Engineering |
| spelling | doaj.art-cfa616de0f974ef4b68ff765fc178e772023-02-24T05:37:50ZengFrontiers Media S.A.Frontiers in Mechanical Engineering2297-30792023-02-01910.3389/fmech.2023.11014251101425Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporatorI. Carvajal-Mariscal0J. E. De León-Ruiz1J. M. Belman-Flores2E. Martínez-Espinosa3O. José-Pineda4Instituto Politécnico Nacional, ESIME-UPALM, CDMX, Mexico city, MexicoCentro de Investigación en Materiales Avanzados S.C, CIMAV, Chih, Chihuahua, MexicoDepartment of Mechanical Engineering, DICIS, Universidad de Guanajuato, Guanajuato, MexicoInstituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Madrid, MexicoInstituto Politécnico Nacional, ESIME-UPALM, CDMX, Mexico city, MexicoPresent work focuses on frost accretion in a spine-finned inverted-V tube array evaporator. An experimental evaluation was performed using a standard issue, vertical top-mount, 18 cubic feet, 0.5 m3, refrigerator. Evaporator temperature distribution, inner airflow velocity, and relative humidity were measured to account for convective phenomena influencing frost distribution. Frost formation and accretion on the surface of the evaporator were visualized using thermal and microscopic imagery. The images were processed using a machine vision algorithm to measure frost thickness. Complementarily, frost density and vapor mass transfer were computed using available correlations. An estimation function was derived from the compiled data using a semi empirical approach, i.e., direct measurements and thermophysical substance properties. The resulting mathematical expression estimated the frost accretion rate within an error expectancy, RMSE, of 0.1479 and displayed a goodness-of-fit, R-Squared, of 0.9029. Based on these results, semi empirical estimation, is proposed as a viable approach to construct adequate limits for new predictions, vis-à-vis evaporator performance, ultimately reducing appliance energy consumption via implementing more effective control strategies regarding internal defrosting.https://www.frontiersin.org/articles/10.3389/fmech.2023.1101425/fullfrost accretionrefrigerationevaporatorestimation functionmachine vision |
| spellingShingle | I. Carvajal-Mariscal J. E. De León-Ruiz J. M. Belman-Flores E. Martínez-Espinosa O. José-Pineda Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporator Frontiers in Mechanical Engineering frost accretion refrigeration evaporator estimation function machine vision |
| title | Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporator |
| title_full | Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporator |
| title_fullStr | Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporator |
| title_full_unstemmed | Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporator |
| title_short | Experimental assessment and semi empirical estimation of frost accretion—A case study on a spine-finned inverted-V tube array evaporator |
| title_sort | experimental assessment and semi empirical estimation of frost accretion a case study on a spine finned inverted v tube array evaporator |
| topic | frost accretion refrigeration evaporator estimation function machine vision |
| url | https://www.frontiersin.org/articles/10.3389/fmech.2023.1101425/full |
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