Please use this identifier to cite or link to this item:
https://essuir.sumdu.edu.ua/handle/123456789/79585
Or use following links to share this resource in social networks:
Tweet
Recommend this item
Title | Thermal performance in heat exchangers by the irreversibility, effectiveness, and efficiency concepts using nanofluids |
Authors |
Nogueira, E.
|
ORCID | |
Keywords |
thermodynamics second law ethylene glycol volume fraction |
Type | Article |
Date of Issue | 2020 |
URI | https://essuir.sumdu.edu.ua/handle/123456789/79585 |
Publisher | Sumy State University |
License | Creative Commons Attribution - NonCommercial 4.0 International |
Citation | Nogueira, E. (2020). Thermal performance in heat exchangers by the irreversibility, effectiveness, and efficiency concepts using nanofluids. Journal of Engineering Sciences, Vol. 7(2), pp. F1–F7, doi: 10.21272/jes.2020.7(2).f1 |
Abstract |
The objective of the work is to obtain the outlet temperatures of the fluids in a shell and tube heat exchanger. The second law of thermodynamics is applied through the concepts of efficiency, effectiveness, and irreversibility to analyze the results. Water flows in the shell, and a mixture of water-ethylene glycol is associated with fractions of nanoparticles flows in the tube. Water enters the shell at 27°C, and the mixture comes to the tube at 90°C. The mass flow is kept fixed in the shell, equal to 0.23 kg/s, and varies between 0.01 kg/s to 0.50 kg/s. Volume fractions equal to 0.01, 0.10, and 0.25 were considered for analysis, for both nanoparticles from Ag and Al2O3. Results for Reynolds number, heat transfer rate, efficiency, effectiveness, and irreversibility are presented for critique, discussion, and justification of the output data found. It is shown that the flow regime has a significant effect on the performance of the analyzed heat exchanger. |
Appears in Collections: |
Journal of Engineering Sciences / Журнал інженерних наук |
Views

1

1

279767360

1

11995516

1

891249482

483594731

56247

-1558900646

1

94828

1

1

1

17667

1

1

1

1

-704787521

46968327

891249477

-1558900644

46968326
Downloads

9878664

1

-1170626837

-1558900645

782

1

1

1

56248

11995518

1

166056

266816

-1558900643

1
Files
File | Size | Format | Downloads |
---|---|---|---|
Nogueira_jes_2_2020.pdf | 1.43 MB | Adobe PDF | 28903261 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.