The study presents an algorithm to compute the heat transfer coefficient for thermal cable rating when modelling the non-isothermal earth surface with the additional wall method. The position of the fictitious images is computed analytically by recognising that the complex geometrical arrangement can be converted into a much simpler one using the Fourier transform. This allows for the estimatio...

In this study, enhancements of thermal conductivities of ethylene glycol, water, and synthetic engine oil in the presence of copper (Cu), copper oxide (CuO), and multi-walled carbon nanotube (MWNT) are investigated using both physical mixing method (two-step method) and chemical reduction method (one-step method). The chemical reduction method is, however, used only for nanofluid containing Cu ...

Dimerization process is essential for producing copolymers. The features of dimerization process like thermal-oxidative degradation should be well known to reach maximum efficiency and a superior reactor design. Also, the degradation mechanism of biodegradable polymers is important during sterilization processes. Thermal-oxidative degradation of PGA, PLLA, and their binary copolymers was invest...

This study investigates the thermal insulation and moisture management of three types mountaneering boots simulated hiking activities under controlled environmental conditions with two elite athletes. Temperature humidity were determined six wireless probes placed on most exposed parts foot (hallux, middle toe, little dorsum, ankle sole). Thermal images taken to record each sample. Methodologic...

In this work, we propose a novel online thermal management approach based on model predictive control for 3D multi-processors system on chip (MPSoCs) using microfluidic cooling. The controller uses dynamic voltage and frequency scaling (DVFS) for the computational cores and adjusts the liquid flow rate to meet the desired performance requirements and to minimize the overall MPSoC energy consump...

The power and thermal issues have become one of the major design challenges for the development of modern computing systems. Developing an effective Dynamic thermal management algorithm for the practical multi-core computing system to deliver maximal throughput without encountering temperature emergencies becomes highly demanded. In this paper, we first identify the limitation of the existing t...

Active thermal control for power modules can potentially extend the lifetime of the converter. This paper investigates the trade-off between the lifetime extension or de-rating and its cost due to the efficiency reduction. A short review on the existing approaches using control to reduce thermal stress of power modules is presented. Based on a given junction temperature profile, a method to eva...

Laboratory measurements on dynamic thermal performance of a thermal bridge at the Division of Building Technology, Kungliga Tekniska Högskolan in Stockholm, are presented in this paper. In order to analyse the measured results, dynamic multi-dimensional modelling that can describe the dynamic behaviour of thermal bridges in a simple and accurate way is required. A network method with a Π-link r...

In current study, the synthesis and characterization of novel thermally stable polyimides (PIs) containing an 1,3,4-oxadiazole moiety based on a diamine, i.e. 2,5-bis(3-amino-4-methyl benzene)-1,3,4-oxadiazole (BAMO), have been reported. The polymers were characterized using FT-IR and elemental analysis (CHN). Thermal and mechanical behaviours of the prepared PIs were studied by thermo-gravimet...