A new moving boundary model for evaluating the performance of wet fins: Application to minichannel evaporators
| Autor: | Abdelrahman Hussein Hassan, José Gonzálvez-Maciá, Santiago Martínez-Ballester |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Fin Meteorology business.industry 020209 energy Air-side analysis Heat and mass transfer Energy Engineering and Power Technology Boundary (topology) 02 engineering and technology Mechanics Humidity ratio Annular fin Industrial and Manufacturing Engineering Minichannel evaporator Boundary model Air temperature Heat transfer Numerical modeling MAQUINAS Y MOTORES TERMICOS 0202 electrical engineering electronic engineering information engineering Wet fins business Evaporator |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| DOI: | 10.1016/j.applthermaleng.2017.08.055 |
| Popis: | [EN] In this paper, firstly, an innovative numerical model (Fin1D-MB) for wet fins of a minichannel evaporator was developed and verified. The proposed model is based on fin theory in conjunction with the moving boundary (MB) technique between wet and dry portions along the fin height. Secondly, a comparative study between the Fin1D-MB model and a comprehensive two-dimensional model (Fin2D-W) was implemented under different dehumidifying conditions. The results showed a good agreement between the two models in predicting the fin temperature profile and dehumidifying condition. However, the Fin1D-MB model saved computational cost by up to 95%, compared to the Fin2D-W model. Nevertheless, the relative deviations in the air-side heat transfer rates should be taken into consideration, especially in the partially wet fin region. The main source of these deviations is the assumption of uniform air temperature and humidity ratio along the fin height used by the Fin1D-MB model. The authors would like to gratefully acknowledge the financial support from the Spanish Ministry of Economy and Finance to project number DPI2011-26771-C02-01. The proofreading of this paper was funded by the Centro de Lenguas, Universitat Politecnica de Valencia. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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