A high thermal resistance MEMS-based Pirani vacuum sensor chip

2013 ◽  
Author(s):  
Florian Dams ◽  
Rupert Schreiner
Keyword(s):  
Thermal Resistance ◽  
Sensor Chip ◽  
Vacuum Sensor ◽  
High Thermal Resistance

Breathable properties ofm-Aramid nanofibrous membrane with high thermal resistance

2014 ◽  
Vol 132 (8) ◽  
pp. n/a-n/a ◽  
Author(s):  
Young Shin Park ◽  
Jong Wha Lee ◽  
Young Sik Nam ◽  
Won Ho Park
Keyword(s):  
Thermal Resistance ◽  
Nanofibrous Membrane ◽  
High Thermal Resistance

scholarly journals Investigation of Bath/Freeze Lining Interface Temperature Based on the Rheology of the Slag

JOM ◽  
2021 ◽  
Author(s):  
Samant Nagraj ◽  
Mathias Chintinne ◽  
Muxing Guo ◽  
Bart Blanpain
Keyword(s):  
Thermal Degradation ◽  
Thermal Resistance ◽  
Conceptual Framework ◽  
Batch Process ◽  
Heat Losses ◽  
Interface Temperature ◽  
Freeze Lining ◽  
High Thermal Resistance ◽  
Critical Viscosity ◽  
Physical And Chemical

AbstractFreeze lining is a solidified layer of slag formed on the inner side of a water-cooled pyrometallurgical reactor, which protects the reactor walls from thermal, physical, and chemical attacks. Because of the freeze lining's high thermal resistance, the reactor heat losses strongly depend on the freeze lining thickness. In a batch process such as slag fuming, the conditions change with time, affecting the freeze lining thickness. Determining the freeze lining thickness is challenging as it cannot be measured directly. In this study, a conceptual framework based on the morphology and microstructure of freeze lining and the rheology of the slag is discussed and experimentally evaluated to determine the freeze lining thickness. It was found that the bath/freeze lining interface lies just below critical viscosity temperature. The growth of the freeze lining is primarily controlled by the mechanical and thermal degradation of the crystals forming at the interface. The bath/freeze lining interface temperature for the measured slag lies in the range of 1035–1070°C.

scholarly journals The lifetimes of evaporating sessile droplets are significantly extended by strong thermal effects

2018 ◽  
Vol 851 ◽  
pp. 231-244 ◽  
Author(s):  
F. G. H. Schofield ◽  
S. K. Wilson ◽  
D. Pritchard ◽  
K. Sefiane
Keyword(s):  
Thermal Properties ◽  
Thermal Resistance ◽  
Thermal Effects ◽  
Asymptotic Solutions ◽  
Saturation Concentration ◽  
High Thermal Resistance ◽  
Explicit Expressions

The evaporation of sessile droplets is analysed when the influence of the thermal properties of the system is strong. We obtain asymptotic solutions for the evolution, and hence explicit expressions for the lifetimes, of droplets when the substrate has a high thermal resistance relative to the droplet and when the saturation concentration of the vapour depends strongly on temperature. In both situations we find that the lifetimes of the droplets are significantly extended relative to those when thermal effects are weak.

Superconducting Multilayer High-Density Flexible Printed Circuit Board for Very High Thermal Resistance Interconnections

2018 ◽  
Vol 193 (3-4) ◽  
pp. 578-584 ◽  
Author(s):  
Xavier de la Broïse ◽  
Alain Le Coguie ◽  
Jean-Luc Sauvageot ◽  
Claude Pigot ◽  
Xavier Coppolani ◽  
...  
Keyword(s):  
Thermal Resistance ◽  
Printed Circuit Board ◽  
High Density ◽  
Circuit Board ◽  
Printed Circuit ◽  
Flexible Printed Circuit ◽  
High Thermal Resistance ◽  
Very High

scholarly journals Innovative technologies for low-rise construction

2019 ◽  
Vol 91 ◽  
pp. 02032 ◽  
Author(s):  
Aleksey Zhukov ◽  
Timofey Dovydenko ◽  
Sergey Kozlov ◽  
Karapet Ter-Zakaryan ◽  
Ekaterina Bobrova
Keyword(s):  
Thermal Conductivity ◽  
Energy Conservation ◽  
Thermal Resistance ◽  
Financial Stability ◽  
Environmental Safety ◽  
Efficient System ◽  
Wall Structures ◽  
High Thermal Resistance ◽  
Materials Used ◽  
Moisture Conductivity

The article presents the results of the implementation of promising areas of construction and construction of low-rise buildings. The problems of improving the environmental safety and financial stability of agricultural construction through the implementation of effective systems that provide energy conservation, the creation of comfortable conditions in the rooms are considered. It is noted that a factor that has been given special attention in recent years is the environmental safety of the materials used and the reduction of the negative load on the environment of systems using these materials. The article provides the rationale that the heat-efficient system should not only be based on the use of materials with low thermal conductivity, but should also suggest a reasonable minimization of the joints between the products included in the insulation sheath and between products and structures. In constructions with the use of polyethylene foam, seamless insulating sheath is formed, which has high thermal resistance. The low vapor and wind permeability and moisture conductivity of polyethylene foam makes it possible to dispense with the construction without additional vapor barrier and wind protection, which improves the performance of the casing and its durability due to the reduction in the complexity of manufacturing wall structures.

scholarly journals Thermal Performance of Solar Collectors with EPDM Absorber Plates

1988 ◽  
Vol 41 (4) ◽  
pp. 623
Author(s):  
MJ O'Keefe ◽  
JLA Francey
Keyword(s):  
Experimental Study ◽  
Thermal Resistance ◽  
Flat Plate ◽  
Heat Loss ◽  
Thermal Performance ◽  
Critical Value ◽  
Solar Collectors ◽  
Flow Rates ◽  
Mass Flow Rates ◽  
High Thermal Resistance

An experimental study of flat-plate solar collectors using ethylene, propylenediene monomer (EPDM) absorber plates is descn"bed. In spite of the high thermal resistance of this material the performance is found to compare well with metal absorbers and to be in agreement with the Hottel-Whillier-Bliss equation. There is, however, an observed increase in the heat loss coefficient for mass flow rates below a critical value.

Study on the Thermal Stability of Selected Ionic Liquids

2015 ◽  
Vol 220-221 ◽  
pp. 218-223
Author(s):  
Tomasz Jan Kaldonski ◽  
Stanislaw Cudzilo
Keyword(s):  
Higher Education ◽  
Thermal Stability ◽  
Ionic Liquids ◽  
High Temperature ◽  
Thermal Resistance ◽  
Chemical Structure ◽  
Research Project ◽  
High Thermal Resistance ◽  
Thermal Stability Of

Some results of tests of the thermal stability (and volatility) of selected ionic liquids pondered as lubricating substances in comparison with typical lubricating, mineral and synthetic oils, are presented in the article. The research was carried out within the framework of PBR/15–249/2007/WAT–OR00002904 Research Project Financed by the Ministry of Science and Higher Education, during 2007–2011 [1]. The obtained results confirmed high thermal resistance of ionic liquids. It makes it possible to use the liquids as high temperature lubricating substances. At the same time, it has been stated that the thermal resistance of ionic liquids depends on the composition and chemical structure of anion and cation.

scholarly journals Low-loss graded-index polymer crossed optical waveguide with high thermal resistance

2018 ◽  
Vol 26 (4) ◽  
pp. 4512 ◽  
Author(s):  
Kohei Abe ◽  
Yutaro Oizumi ◽  
Takaaki Ishigure
Keyword(s):  
Thermal Resistance ◽  
Optical Waveguide ◽  
Low Loss ◽  
Graded Index ◽  
High Thermal Resistance
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