Thermal Lensing of Multi-walled Carbon Nanotube Solutions as Heat Transfer Nanofluids

Author(s):  
Mohanachandran Nair Sindhu Swapna ◽  
Vimal Raj ◽  
Humberto Cabrera ◽  
Sankaranarayana Iyer Sankararaman
Nanoscale ◽  
2018 ◽  
Vol 10 (48) ◽  
pp. 23103-23112 ◽  
Author(s):  
Wonjae Jeon ◽  
Taehun Kim ◽  
Sung-Min Kim ◽  
Seunghyun Baik

Fast mass transport-assisted forced convection heat transfer of air is realized through the interstitial space of multi-walled carbon nanotube arrays.


Carbon ◽  
2015 ◽  
Vol 93 ◽  
pp. 819-829 ◽  
Author(s):  
Pengjian Gong ◽  
Piyapong Buahom ◽  
Minh-Phuong Tran ◽  
Mehdi Saniei ◽  
Chul B. Park ◽  
...  

MRS Advances ◽  
2019 ◽  
Vol 4 (08) ◽  
pp. 507-513 ◽  
Author(s):  
Dinesh Bommidi ◽  
Ravindra Sunil Dhumal ◽  
Iman Salehinia

ABSTRACTThermal conductivity of a nickel-coated tri-wall carbon nanotube was studied using molecular dynamics where both the phonon and electron contributions were considered. Simulations predicted a significant effect of the metal coating on the thermal conductivity, i.e. 50% decrease for 1.2 nm of Ni coating. However, the decreasing rate of the thermal conductivity is minuscule for the metal thicker than 1.6 nm. The smaller thermal conductivity of the metal coating, phonon scattering at the interface, and less impacted heat transfer on the inner tubes of the carbon nanotube rationalized the observed trends.


2019 ◽  
Vol 54 (1) ◽  
pp. 61-70 ◽  
Author(s):  
Tamilarasi Thangamuthu ◽  
Rajasekar Rathanasamy ◽  
Saminathan Kulandaivelu ◽  
Ravichandran Kuttiappan ◽  
Mohanraj Thangamuthu ◽  
...  

In the current scenario, thermal management plays a vital role in electronic system design. The temperature of the electronic components should not exceed manufacturer-specified temperature levels in order to maintain safe operating range and service life. The reduction in heat build-up will certainly enhance the component life and reliability of the system. The aim of this research work is to analyze the effect of multi-walled carbon nanotube and graphene coating on the heat transfer capacity of a microprocessor used in personal computers. The performance of coating materials was investigated at three different usages of central processing unit. Multi-walled carbon nanotube-coated and graphene-coated microprocessors showed better enhancement in heat transfer as compared with uncoated microprocessors. Maximum decrease in heat build-up of 7 and 9℃ was achieved for multi-walled carbon nanotube-coated and graphene-coated microprocessors compared to pure substrate. From the results, graphene has been proven to be a suitable candidate for effective heat transfer compared to with multi-walled carbon nanotubes due to high thermal conductivity characteristics of the former compared to the latter.


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