scholarly journals Example Evaluation of a Representative Heat Pipe Test Article Design for Structural Acceptability using ASME Design Rules

2020 ◽  
Author(s):  
Guosheng Ye ◽  
Mark Messner ◽  
T. Sham
Keyword(s):  
Heat Pipe ◽  
Design Rules ◽  
Test Article

scholarly journals Test Article and Test Plan for Heat-Pipe Gap-Conductance Testing

2021 ◽  
Author(s):  
Jeremy Hartvigsen ◽  
Zachary Sellers ◽  
Piyush Sabharwall
Keyword(s):  
Heat Pipe ◽  
Test Plan ◽  
Test Article

Challenges and Advances of Heat Pipes in Cooling Notebook Systems

2007 ◽  
Author(s):  
Sridhar V. Machiroutu ◽  
Himanshu Pokharna ◽  
Masahiro Kuroda
Keyword(s):  
Heat Pipe ◽  
Lower Cost ◽  
Heat Pipes ◽  
Optimum Level ◽  
Simple Design ◽  
Foreseeable Future ◽  
Design Rules ◽  
Experimental Procedure ◽  
Desktop Computers ◽  
Thermal Solution

Notebooks represent an increasing percentage of PC client market with growth surpassing that of desktop computers. Heat pipe has been an integral part of notebook computer system cooling and will remain so for the foreseeable future. Heat pipe allows for efficient transport of heat from the CPU and other high power components to a location where there is more room for accommodating motherboard cutout for a fan and a heat exchanger. The thermal resistance along this path must be minimized to enable maximum cooling. This paper first briefly describes the contributing resistance in a heat pipe and ways to measure them for a notebook thermal solution. Since there are several parameters that can affect the performance of the heat pipes, we use an experimental procedure utilizing DOE (Design of Experiments) to first understand the sensitivities of these design, manufacturing and usage parameters on performance and then to arrive at an optimum level of these parameters to minimize various resistances in a heat pipe. We show that for various different wick technologies, it is possible to optimize the heat pipes to achieve an evaporator performance of the level of 0.1 C-cm2/W. Furthermore, we show some simple design rules to minimize the condenser resistance and also results of a design study to optimize the design of heat pipe block at the CPU end to minimize the evaporator resistance. We want to encourage the heat pipe vendor community to use these methods to optimize their products for performance as well as process enhancements to produce higher performing parts, at lower cost.

Smoke Test article - Mon 8th July

Nature ◽  
2013 ◽  
Author(s):  
Peggy McPeggle
Keyword(s):  
Test Article ◽  
Smoke Test

Contrasting underlying mechanisms of different barrier coating types

TAPPI Journal ◽  
2018 ◽  
Vol 17 (01) ◽  
pp. 31-37
Author(s):  
Bryan McCulloch ◽  
John Roper ◽  
Kaitlin Rosen
Keyword(s):  
Food Packaging ◽  
Underlying Mechanism ◽  
Consumer Products ◽  
Mechanical Degradation ◽  
Design Rules ◽  
Barrier Coatings ◽  
Barrier Materials ◽  
Barrier Coating ◽  
Coating Type ◽  
Underlying Mechanisms

Barrier coatings are used in applications including food packaging, dry goods, and consumer products to prevent transport of different compounds either through or into paper and paperboard substrates. These coatings are useful in packaging to contain active ingredients, such as fragrances, or to protect contents from detrimental substances, such as oxygen, water, grease, or other chemicals of concern. They also are used to prevent visual changes or mechanical degradation that might occur if the paper becomes saturated. The performance and underlying mechanism depends on the barrier coating type and, in particular, on whether the barrier coating is designed to prevent diffusive or capillary transport. Estimates on the basis of fundamental transport phenomena and data from a broad screening of different barrier materials can be used to understand the limits of various approaches to construct barrier coatings. These estimates also can be used to create basic design rules for general classes of barrier coatings.

Analysis of a Stainless Steel Heat Pipe based on Operation Limits

2014 ◽  
Vol 8 (3) ◽  
pp. 599 ◽  
Author(s):  
Paulo Henrique Dias dos Santos ◽  
Larissa Krambeck ◽  
Diogo Luiz Figueiredo dos Santos ◽  
Thiago Antonini Alves
Keyword(s):  
Stainless Steel ◽  
Heat Pipe ◽  
Stainless Steel Heat ◽  
Steel Heat

INITIAL EVALUATION OF ON-ORBIT EXPERIMENT OF FLAT-PLATE HEAT PIPE

2014 ◽  
Vol 5 (1-4) ◽  
pp. 547-554
Author(s):  
Atsushi Okamoto ◽  
Makiko Ando ◽  
Hiroyuki Sugita
Keyword(s):  
Flat Plate ◽  
Heat Pipe ◽  
Initial Evaluation ◽  
Plate Heat ◽  
Flat Plate Heat Pipe

APPLICATION OF FLAT PLATE HEAT PIPE FOR COOLING SPACECRAFT ELECTRONICS

2014 ◽  
Vol 5 (1-4) ◽  
pp. 531-537
Author(s):  
D. R. Veeresha ◽  
Ch. SimhachalaRao ◽  
M. K. Shailandran ◽  
S. G. Barve ◽  
D. Kumar ◽  
...  
Keyword(s):  
Flat Plate ◽  
Heat Pipe ◽  
Plate Heat ◽  
Flat Plate Heat Pipe

HEAT TRANSFER STUDIES IN A CLOSED LOOP PULSATING HEAT PIPE

2014 ◽  
Vol 5 (1-4) ◽  
pp. 449-456
Author(s):  
Bhawna Verma ◽  
V. L. Yadav ◽  
K. K. Srivastava
Keyword(s):  
Heat Transfer ◽  
Heat Pipe ◽  
Closed Loop ◽  
Pulsating Heat Pipe
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