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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   NOVEMBER 2015 , Volume 15 , Number 8; Page(s) 239 To 248.
 
Paper: 

NUMERICAL STUDY OF HEAT TRANSFER IN FILM CONDENSATION OF NANO FLUID ON AN INCLINED PLATE

 
 
Author(s):  ZIAEI RAD MASOUD*, AMANI FARZANEH
 
* DEPARTMENT OF MECHANICAL ENGINEERING, UNIVERSITY OF ISFAHAN, ISFAHAN, IRAN
 
Abstract: 
In this paper, the heat transfer enhancement by the nanoparticles in the film condensation of Nano fluid over cooled plate is studied numerically. Shooting method and modified-Euler scheme are employed to solve the condensation boundary layer equations. The effect of changes in the plate angle, Nano fluid type, volume fraction of nanoparticles and Jacob number, on the velocity and temperature profiles and Nusselt number are investigated. Resulting graphs are compared and validated with the available theoretical results for the base fluid and Nano fluid. The results show that the presence of nanoparticles in the liquid film of condensation increases the heat transfer from it. As the plate distances from the vertical position, the temperature change across the boundary layer is close to linear and thus, the heat transfer descends. Also, it can be seen that the average Nusselt number is almost constant up to the angle of 20o, and then reduces in gradual manner, so that for instance, for water-TiO2 Nano fluid, by increasing the angle up to 60o, the temperature gradient is reduced by about 20 percent. Furthermore, it is seen that the relationship between the ratio of Nano fluid to pure water Nusselt number and the nanoparticles volume fraction is linear, while the slope of the line for water-Cu and water-Ag is higher than other studied Nano fluids, i.e., these two Nano fluids are more effective in heat transfer enhancement. The obtained results also confirm the fact that the Nusselt theory is only applicable in low Jacob numbers.
 
Keyword(s): FILM CONDENSATION, INCLINED PLATE, NANO FLUID FLOW, HEAT TRANSFERL, NUMERICAL METHOD
 
 
References: 
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APA: Copy

ZIAEI RAD, M., & AMANI, F. (2015). NUMERICAL STUDY OF HEAT TRANSFER IN FILM CONDENSATION OF NANO FLUID ON AN INCLINED PLATE. MODARES MECHANICAL ENGINEERING, 15(8), 239-248. https://www.sid.ir/en/journal/ViewPaper.aspx?id=465521



Vancouver: Copy

ZIAEI RAD MASOUD, AMANI FARZANEH. NUMERICAL STUDY OF HEAT TRANSFER IN FILM CONDENSATION OF NANO FLUID ON AN INCLINED PLATE. MODARES MECHANICAL ENGINEERING. 2015 [cited 2021December07];15(8):239-248. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=465521



IEEE: Copy

ZIAEI RAD, M., AMANI, F., 2015. NUMERICAL STUDY OF HEAT TRANSFER IN FILM CONDENSATION OF NANO FLUID ON AN INCLINED PLATE. MODARES MECHANICAL ENGINEERING, [online] 15(8), pp.239-248. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=465521.



 
 
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