Experimental Investigation of CO2 Hydrate Dissociation in Silica Nanoparticle System with Different Thermal Conductivity

2021 ◽  
Vol 42 (12) ◽  
Author(s):  
Li-jun Jiao ◽  
Run-cong Wan ◽  
Zhao-liang Wang
Keyword(s):  
Thermal Conductivity ◽  
Experimental Investigation ◽  
Silica Nanoparticle ◽  
Hydrate Dissociation ◽  
Nanoparticle System

Experimental investigation of extinction properties and thermal conductivity of metal-coated dielectric fibers in vacuum

1987 ◽  
Vol 8 (2) ◽  
pp. 263-280 ◽  
Author(s):  
H. Reiss ◽  
F. Schmaderer ◽  
G. Wahl ◽  
B. Ziegenbein ◽  
R. Caps
Keyword(s):  
Thermal Conductivity ◽  
Experimental Investigation

Numerical Simulation & Experimental Investigation of SMT Laser Microsoldering Thermal Process

1991 ◽  
Vol 226 ◽  
Author(s):  
Wang Chunqing ◽  
Qian Yiyu ◽  
Jiang Yihong
Keyword(s):  
Thermal Conductivity ◽  
Numerical Simulation ◽  
Experimental Investigation ◽  
Thermal Process ◽  
Light Wave ◽  
Light Reflection ◽  
Lead Wire ◽  
Wire Surface ◽  
Conductivity Variation ◽  
Thermal Conductivity Variation

AbstractIn this paper,a numerical simulation of thermal process in the SMT laser microsoldering joint has been developed, in which, the influence on thermal process of the factors such as the thermal conductivity variation of solder with temperature, light reflection coefficient of the lead wire surface, and heat exchange on the surface of SMT materials all have been considered. In order to carry this numerical calculation practice and prove it's results,the reflexive characteristic of light wave to the SMT materials has been gauged,and the dynamic temperature process of laser microjoint has been measured by a new experimental method which was invented by the authors.The results of numerical simulation have been borne out by the tests, and the influences of heating parameters on thermal process has been analysed in this paper.The conclusions will be advantageous to the further study of the microjoint quality control in the SMT laser microsoldering.

Wettability Alteration Modeling for Oil-Wet Calcite/Silica Nanoparticle System Using Surface Forces Analysis: Contribution of DLVO versus Non-DLVO Interactions

2018 ◽  
Vol 57 (43) ◽  
pp. 14482-14492 ◽  
Author(s):  
Abolfazl Dehghan Monfared ◽  
Mohammad Hossein Ghazanfari ◽  
Mohammad Kazemeini ◽  
Mohammad Jamialahmadi ◽  
Abbas Helalizadeh
Keyword(s):  
Silica Nanoparticle ◽  
Surface Forces ◽  
Wettability Alteration ◽  
Nanoparticle System

scholarly journals Experimental investigation of rockwool insulation hygrothermal properties related to material structure

2015 ◽  
Vol 19 (3) ◽  
pp. 923-928 ◽  
Author(s):  
Maja Djurovic-Petrovic
Keyword(s):  
Thermal Conductivity ◽  
Experimental Investigation ◽  
Sorption Properties ◽  
Material Structure ◽  
Insulation Material ◽  
Wide Range ◽  
Two Samples

The hygrothermal properties related to rockwool insulation material structure with different additives are presented using rockwool insulation products obtained from row material of southern Serbia (Vranje region) in the wide range of reference temperatures (10?C to 70?C). The hygrothermal properties of basic sample (without additives) are compared to two samples with different additives for two sets of rockwool insulation samples namely: light-soft-panels (LSP) with density of 50 kg/m3, and middle-weight-panels (MWP) with density of 80 kg/m3. It is shown that there is significant (approximately 10%) improvement of thermal conductivity for additives based on zeolite. Also, correlation of thermal conductivity and sorption properties of selected samples are presented.

Experimental Investigation of Effective Thermal Conductivity for LHP Wicks

2010 ◽  
Author(s):  
Gongming Xin ◽  
Kehang Cui ◽  
Yan Chen ◽  
Wenjing Du ◽  
Yong Zou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Experimental Investigation ◽  
Effective Thermal Conductivity ◽  
Pure Copper ◽  
Pure Nickel ◽  
Loop Heat Pipe ◽  
Porosity Level ◽  
Nickel Powders ◽  
Copper Powders ◽  
Reasonable Prediction

In this study, the effective thermal conductivity (ETC) of sintered loop heat pipe wicks, with pure nickel powders, pure copper powders, Ni-10wt%Cu powders and Ni-20wt%Cu powders were experimentally investigated. The ETC of sintered Ni-Cu wicks is found less than those of sintered pure nickel wick and sintered pure copper wicks. In the same porosity level, addition of copper into nickel will reduce ETC of the sintered Ni-Cu wicks. The sintered Ni-20wt%Cu wick presents the lowest ETC among the tested wick samples. Compared to experimental results, Alexander model can provide a reasonable prediction in some wick samples.

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