Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Ramin Mashayekhi"'
Autor:
Yongfeng Ju, Tiezhu Zhu, Ramin Mashayekhi, Hayder I. Mohammed, Afrasyab Khan, Pouyan Talebizadehsardari, Wahiba Yaïci
Publikováno v:
Nanomaterials, Vol 11, Iss 6, p 1570 (2021)
The hydrothermal performance of multiple semi-twisted tape inserts inside a heat exchanger pipe is numerically examined in three-dimensions. This study aims to find the optimum case for having the highest heat transfer enhancement with the lowest fri
Externí odkaz:
https://doaj.org/article/040c14bad516470184fce92c143e6718
Autor:
Mehdi Ghalambaz, Ramin Mashayekhi, Hossein Arasteh, Hafiz Muhammad Ali, Pouyan Talebizadehsardari, Wahiba Yaïci
Publikováno v:
Symmetry, Vol 12, Iss 10, p 1652 (2020)
This paper investigates the convective heat transfer in a heat exchanger equipped with twisted tape elements to examine effects of the twisted tape truncation percentage, pitch value, position and Reynolds number using 3D numerical simulation. A symm
Externí odkaz:
https://doaj.org/article/cda37fda22bc4776b205e63eb68f36e8
Autor:
Mehdi Ghalambaz, Hossein Arasteh, Ramin Mashayekhi, Amir Keshmiri, Pouyan Talebizadehsardari, Wahiba Yaïci
Publikováno v:
Nanomaterials, Vol 10, Iss 9, p 1656 (2020)
This study investigated the laminar convective heat transfer and fluid flow of Al2O3 nanofluid in a counter flow double-pipe heat exchanger equipped with overlapped twisted tape inserts in both inner and outer tubes. Two models of the same (co-swirli
Externí odkaz:
https://doaj.org/article/95f54aab099042d1aff7af086bb1fbae
Autor:
Apurv Kumar, Alireza Rahbari, Hossein Arasteh, Pouyan Talebizadehsardari, Morteza Hangi, Ramin Mashayekhi
Publikováno v:
Heat Transfer Engineering. 43:608-622
Al2O3–water nanofluids along with stationary and rotating twisted tape inserts are used to increase the rate of heat transfer in a plain tube. The simulations are conducted through varying the desi...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47e4551c1eb6b47018cffdf1436f3750
https://doi.org/10.1080/01457632.2021.1896835
https://doi.org/10.1080/01457632.2021.1896835
Publikováno v:
Chinese Journal of Chemical Engineering. 28:1522-1532
The effects of various surface roughness geometrical properties including roughness height (5%, 10%, 15%), number (3, 6), and shape (rectangular and triangular) on the flow and heat transfer of slip-flow in trapezoidal microchannels were investigated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85106290a8a640ec1628292c32c95e2e
https://doi.org/10.1016/j.cjche.2020.03.028
https://doi.org/10.1016/j.cjche.2020.03.028
Autor:
Masoud Afrand, Davood Toghraie, Hossein Arasteh, S. Hossein Motaharpour, Ramin Mashayekhi, Amir Keshmiri
Publikováno v:
Computers & Mathematics with Applications. 79:2203-2215
This is a numerical study of convective heat transfer of the Water-Al2O3 nanofluid in an oval channel using two-phase mixture model. The channel is fitted with two rows of twisted conical strip inserts with various directions relative to each other l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a312718a0f993c7bd3de7bdff537632e
https://doi.org/10.1016/j.camwa.2019.10.024
https://doi.org/10.1016/j.camwa.2019.10.024
Publikováno v:
The European Physical Journal Plus. 136
This work presents the thermo-hydraulic performance of water–Al2O3 nanofluid flow in an oval tube fitted with two parallel conical twisted strips in different alignments including staggered with four wings (S-4), staggered with five wings (S-5), no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db67b517c58c71d378ab0f9874e4bf27
https://doi.org/10.1140/epjp/s13360-021-01664-w
https://doi.org/10.1140/epjp/s13360-021-01664-w
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 141:1669-1685
This is a numerical study of heat transfer and flow in a counter-flow sinusoidal parallel-plate heat exchanger using metal foam in the channels’ divergent sections. The cold water fluid with Reynolds number of 100 and hot oil fluid with Reynolds nu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c637f030f2c294b902c85be0ae0536ec
https://doi.org/10.1007/s10973-019-08870-w
https://doi.org/10.1007/s10973-019-08870-w
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 140:843-858
In the present study, the flow field and heat transfer have been simulated numerically inside a channel. The channel is under the constant heat flux. The main objective of this research is investigating the effect of the arrangement of the porous med
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25b8f4bc2a55bbc582e9a0e0b8e1833d
https://doi.org/10.1007/s10973-019-08863-9
https://doi.org/10.1007/s10973-019-08863-9
Autor:
Erfan Khodabandeh, Seyed Alireza Rozati, Davood Toghraie, Ali J. Chamkha, Omidali Akbari, Ramin Mashayekhi
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow. 30:2025-2049
Purpose Increasing heat transfer rate in spiral heat exchangers is possible by using conventional methods such as increasing number of fluid passes and counter flowing. In addition, newer ideas such as using pillows as baffles in the path of cold and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f50c21c816aa4838669026530722112
https://doi.org/10.1108/hff-10-2018-0594
https://doi.org/10.1108/hff-10-2018-0594