نتایج جستجو برای: thermal resistance

تعداد نتایج: 584040  

2011
Kesong Hu

Polyol-ester-based carbon black pastes are used to either coat or penetrate flexible graphite, thereby increasing the thermal contact conductance of flexible graphite between copper surfaces. Paste penetration by up to an effective paste thickness (the volume of the penetrated paste divided by the geometric area of the flexible graphite) of 5 lm increases the conductance by up to 350%, 98% and ...

2009
W. B. Durham

Measurements of thermal conductivity and thermal diffusivity have been made on two samples of Climax Stock quartz monzonite at pressures between 3 and 50 MPa and temperatures between 300 and 523 K. Following those measurements, the apparatus was calibrated with respect to the thermal conductivity measurement using a reference standard of fused silica. Corrected thermal conductivity of the rock ...

Journal: :Scientific reports 2016
Lin Qiu Xiaotian Wang Guoping Su Dawei Tang Xinghua Zheng Jie Zhu Zhiguo Wang Pamela M Norris Philip D Bradford Yuntian Zhu

It has been more than a decade since the thermal conductivity of vertically aligned carbon nanotube (VACNT) arrays was reported possible to exceed that of the best thermal greases or phase change materials by an order of magnitude. Despite tremendous prospects as a thermal interface material (TIM), results were discouraging for practical applications. The primary reason is the large thermal con...

Journal: :Journal of food protection 2010
Kinga Szlachta Susanne E Keller Arlette Shazer Stuart Chirtel

Pasteurization parameters for grade A milk are well established and set by regulation. However, as solids levels increase, an increased amount of heat is required to destroy any pathogens present. This effect is not well characterized. In this work, the effect of increased dairy solids levels on the thermal resistance of Listeria monocytogenes was examined through the use of ultrafiltered (UF) ...

2002
S. Sharafat A. Kobayashi Y. Chen N. M. Ghoniem

The thermal barrier coatings (TBCs) by gas tunnel-type plasma spraying exhibited ceramic-composite features consisting of a host oxide matrix ceramic with an embedded second phase material. The densities of the composite TBC were found to be higher than those sprayed with 100wt% ZrO2 or Al2O3. In the coatings produced with powder mixtures of 50wt%, the embedded splats are found to have a relati...

Journal: :international journal of iron & steel society of iran 2006
m. adjabshiri s. sharafi

master moulds are used to cast copper anode moulds. these iron moulds are made of grey or nodular cast irons. according to desirable properties of ductile irons, it was expected that ductile cast iron moulds could have performed their nominal life. but in service, these moulds have not performed their nominal life and they have experienced premature failures due to warping and cracking. also gr...

2006
Hongliang Zhong Jennifer R. Lukes

Interfacial thermal transport between offset parallel (10,10) single-wall carbon nanotubes is investigated by molecular dynamics simulation and analytical thermal modeling as a function of nanotube spacing, overlap, and length. A four order of magnitude reduction in interfacial thermal resistance is found as the nanotubes are brought into intimate contact. A reduction is also found for longer n...

2017
Víctor Echarri

This research examines the benefits of designing a living space in a basement, as a method of passive temperature control in summer, combined with thermal ceramic panels (TCP) on some walls. These panels incorporate a capillary system of polypropylene tubes which work with cold water. We studied a detached house on the coast of Alicante, where the moderate temperature of the ground tempered int...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی نساجی 1384

یکی از اهداف اصلی از تولید پارچه استفاده از آن در پوشاک بوده است که هنوز هم عمده ترین مصرف پارچه ها در این زمینه باقی مانده است. علاوه بر ظاهر پوشاک خواص عایق حرارتی آن از شاخص های اصلی آن محسوب می شود. در کنار خواص حرارتی، خصوصیات انتقال رطوبت، نفوذپذیری هوا از پارامترهای مهم دیگر پوشاک است. جهت اندازه گیری عایق حرارتی پارچه روشهای متعددی وجود دارد. در این تحقیق برای اندازه گیری خواص عایق حرار...

2008
Katsuo Kurabayashi Kenneth E. Goodson

The thermal resistance of the attachment between a die and its carrier contributes strongly to the total temperature rise in an electronic system. The die attach resistance often differs substantially from the value predicted using the bulk thermal conductivity of the attachment material because of partial voiding and delamination. These defects can be introduced during the attachment process o...

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