- document
-
Righetti, Giulia (author), Zilio, Claudio (author), Hooman, K. (author), Mancin, Simone (author)Among experts, it is well-known that the thermal conductivity of PCMs (phase change materials) is low hence a major limitation for their commercial application. This work proposes alternative, inexpensive, but nevertheless effective solutions to increase the average thermal conductivity of a PCM system (a commercial paraffin wax, having a...journal article 2024
- document
- Liu, X. (author) doctoral thesis 2023
- document
-
Peters, Luka (author), Serhat, Gokhan (author), Vardar, Y. (author)Thermal feedback has been proven to enhance user experience in human-machine interactions. Yet state-of-the-art thermal technology has focused on the single finger or palm in static contact, overlooking dynamic and multi-finger interactions. The underlying challenges include incompatible designs of conventional interfaces for providing...journal article 2023
- document
-
Cernuschi, Federico (author), Kulczyk-Malecka, Justyna (author), Zhang, Xun (author), Nozahic, Franck (author), Estournès, Claude (author), Sloof, W.G. (author)The thermal diffusivity and conductivity of dense and porous binary composites having an insulating and conducting phase were studied across its entire composition range. Experimental evaluation has been performed with MoSi<sub>2</sub> particles embedded into yttria partially stabilized zirconia (YPSZ) as prepared by spark plasma sintering ...journal article 2023
- document
-
Chen, Jing (author), Liu, X. (author), Zeng, Xiao Liang (author), Ye, Huai Yu (author), Zhang, Kouchi (author)Hexagonal boron nitride (BN) is often used as filler to improve the thermal conductivity of polymer matrix due to its high thermal conductivity. However, previously reported BN-based composites always have a high in-plane thermal conductivity, which is not beneficial for vertical heat dissipation. In addition, high BN content results in the...journal article 2022
- document
-
Gao, Hanyan (author), Zhang, Jing (author), Zhu, Yingcan (author), Guo, Ruiqian (author), Zhang, Wanlu (author), Zhang, Kouchi (author), Liu, Pan (author)With the trend of miniaturization and the increasing power density, the operating temperature of electronic devices keeps climbing, especially for wide band-gap semiconductors such as silicon carbide and gallium nitride. The high operating temperature up to 250℃ brings challenges to encapsulation materials since traditional encapsulation...conference paper 2022
- document
-
Akram, Naveed (author), Hosseini, M. (author), Sadri, Rad (author), Kazi, S.N. (author), Kasaeian, Alibakhsh (author), Yarmand, H. (author), Hooman, K. (author), Ahmad, Roslina (author)In the present research, the synthesis of highly stable multiwalled carbon nanotubes in aqueous media is developed using a one-pot, covalent and green functionalization technique to improve the heat transfer and hydrodynamic behavior of a horizontal stainless-steel tube subjected to a uniform heat flow at its outer surface. Instead of using...journal article 2022
- document
-
Rong, Jian (author), Zhu, Jia-Ning (author), Xiao, Wenlong (author), Zhao, Xinqing (author), Ma, Chaoli (author)Thermal conductivity is a key parameter for high performance material needed for electronic devices. While most commercially used Mg foundry alloys exhibit low thermal conductivities. In this work, we developed an Mg–3RE–0.5Zn alloy that is suitable for high pressure die cast (HPDC) ultrathin wall cellphone components. The thermal...journal article 2021
- document
-
Celebi, A.T. (author), Vlugt, T.J.H. (author), Moultos, O. (author)Accurate knowledge and control of thermal conductivities is central for the efficient design of heat storage and transfer devices working with deep eutectic solvents (DESs). The addition of water is a straightforward and cost-efficient way of tuning many properties of DESs. In this work, the thermal conductivities of aqueous solutions of...journal article 2021
- document
-
Ragab, Ayman (author), Abdelrady, Ahmed (author)Energy consumption for cooling purposes has increased significantly in recent years, mainly due to population growth, urbanization, and climate change consequences. The situation can be mitigated by passive climate solutions to reduce energy consumption in buildings. This study investigated the effectiveness of the green roof concept in...journal article 2020
- document
-
Vardon, P.J. (author), Peuchen, J. (author)Obtaining in situ thermal properties of soils is often difficult and time-consuming. Here, cone penetration test (CPT) correlations are proposed and validated for thermal properties of saturated ground, i.e. thermal conductivity and volumetric heat capacity, giving continuous profiles of the parameters, in a substantially reduced time. The...journal article 2020
- document
-
Jia, Jinhao (author), Bai, Shuxin (author), Xiong, Degan (author), Wang, Jie (author), Chang, J. (author)Tungsten coatings were deposited on diamond particles by vacuum magnetron sputtering. The coated diamond particles were firstly heat treated at different temperatures, and diamond/copper (Cu) composites were fabricated by using a pressureless infiltration method afterwards. The influences of heat treatment on the microstructure and...journal article 2019
- document
-
Norambuena-Contreras, J. (author), Gonzalez, A. (author), Concha, J. L. (author), Gonzalez-Torre, I. (author), Schlangen, E. (author)This paper aims to evaluate the effect of metallic waste addition on the electrical, thermophysical and microwave crack-healing properties of asphalt mixtures. With this purpose, asphalt mixtures with two different types of metallic waste, steel wool fibres and steel shavings, added in four different contents, were tested. Electrical and...journal article 2018
- document
-
Shekhar, A. (author), Feng, X. (author), Hebner, R. (author), Gattozzi, A. (author), Strank, S. (author), Mor, A. R. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)The thermal behavior of medium voltage dc cables can find useful applications for efficient and capacity enhanced operation in cities as well as compact power transmission on all electric ships. Concepts such as dynamic current and voltage rating, difference in thermal proximity in ac and dc operation, pulsed load application and thermal...conference paper 2018
- document
-
de Graaf, G. (author), Abarca Prouza, A.N. (author), Wolffenbuttel, R.F. (author)Conventional thermal conductivity detectors (TCDs) demonstrate a flow dependence. The approach presented here to reduce the flow dependence is based on the on-line flow compensation using two thin-film sensors on membranes in parallel on the same chip that are differentially operated. These are laterally identically, but with a different depth...conference paper 2015
- document
-
Delil, A.A.M. (author)Different concepts for a moveable thermal joint are described and discussed with respect to the applicability in a dedicated deployable or steerable heat pipe radiator system to handle the waste heat of the NiH batteries of the Polar Platform. Concepts which are identified as possible candidates for near-term deployable radiator development are:...report 1986