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Thermal Transport for Sustainability

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: closed (15 September 2023) | Viewed by 1575

Special Issue Editor

Department of Physics, Autonomous University of Barcelona, 08193 Bellaterra, Barcelona, Spain
Interests: thermal transport
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue aims to encourage authors to share their new advances in thermal transport that could contribute to sustainability, from physics, materials science, electronics, and machine learning perspectives. Many studies have been carried out highlighting the importance of thermal management to improve heat dissipation, increasing the efficiency of processes and reducing their energy consumption. In this sense, new techniques based on artificial intelligence have been used successfully to obtain material properties and reduce the computation time of complex variables. To study thermal transport, the Fourier law has been widely used, which works for steady-state situations and in bulk samples. When the sample size is reduced to the micro or nano scale, with complex geometries or grating, and/or when the heating conditions are performed at high-frequency time scales, the Fourier law cannot be longer applied. The heat is not transferred in a diffusive manner, but other transport regimes such as ballistics [Phys. Rev. B 90, 014306 (2014)], quasi-ballistics [Phys. Rev. B 102, 144305 (2020)] or hydrodynamics [Nature Comm. Volume 9: 255 (2018), Phys. Rev. Materials 2, 076001 (2018)] may appear. In this Special Issue, we seek relevant contributions in these beyond-Fourier transport regimes from a fundamental point of view. Works dealing with first principle calculations, finite element modelling and machine-learning techniques are welcome.

Dr. Pol Torres
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • themal transport
  • themal conductivity
  • first principles
  • machine learning
  • artificial intelligence

Published Papers (1 paper)

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Research

12 pages, 3089 KiB  
Article
Thermal Transport and Physical Characteristics of Silver-Reinforced Biodegradable Nanolubricant
by Jose Jaime Taha-Tijerina, Karla Aviña, Nicolás Antonio Ulloa-Castillo and Dulce Viridiana Melo-Maximo
Sustainability 2023, 15(11), 8795; https://doi.org/10.3390/su15118795 - 30 May 2023
Cited by 3 | Viewed by 1240
Abstract
In this investigation, the thermal transport behavior of biodegradable lubricant reinforced with silver nanostructures (AgNs) at various filler fractions of 0.01, 0.05, 0.10, and 0.20 weight percent was evaluated over a temperature scan analysis, ranging from room temperature up to 60 °C. The [...] Read more.
In this investigation, the thermal transport behavior of biodegradable lubricant reinforced with silver nanostructures (AgNs) at various filler fractions of 0.01, 0.05, 0.10, and 0.20 weight percent was evaluated over a temperature scan analysis, ranging from room temperature up to 60 °C. The experimental results revealed significant gradual enhancements in thermal conductivity as AgNs concentration and evaluating temperatures were increased. These improvements showed the important role of nanostructures’ interaction within the biodegradable lubricant. The thermal conductivity performance improved for nanolubricants ranging from 6.5% at 30 °C and 0.20 wt.% AgNs content up to a maximum 32.2%, which was obtained at 60 °C with 0.20 wt.% AgNs concentration. On the other hand, the thermal stability of reinforced lubricants was assessed through thermogravimetric kinetics analyses. The predictive curves resulting from the analyses indicated that there is an enhancement in both the onset temperature for decomposition and the percentage conversion under isothermal conditions for lubricants reinforced with AgNs. Specifically, the results show that the required temperature to achieve a 5% conversion is 100 °C higher than that calculated for bare lubricant. Moreover, the predictive analyses indicate that there is a delay in the decomposition time at isothermal conditions. Full article
(This article belongs to the Special Issue Thermal Transport for Sustainability)
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