Thermal optimization for nature convection cooling performance of air core reactor with the rain cover

2018 ◽  
Vol 13 (7) ◽  
pp. 995-1001 ◽  
Author(s):  
Fating Yuan ◽  
Zhao Yuan ◽  
Yong Wang ◽  
Junxiang Liu ◽  
Junjia He ◽  
...  
Keyword(s):  
Cooling Performance ◽  
Thermal Optimization ◽  
Air Core ◽  
Convection Cooling

Thermal Optimization for Dry Type Air Core Reactor Base on FEM

2018 ◽  
Author(s):  
Fating Yuan ◽  
Kaijian Wu ◽  
Zhao Yuan ◽  
Junxiang Liu ◽  
Can Ding ◽  
...  
Keyword(s):  
Thermal Optimization ◽  
Air Core

scholarly journals Study on Air Forced Convection Cooling Performance on a High Heat Density Board Model in a Thin Enclosure(Thermal Engineering)

2010 ◽  
Vol 76 (771) ◽  
pp. 1884-1892 ◽  
Author(s):  
Takashi FUKUE ◽  
Masaru ISHIZUKA ◽  
Shinji NAKAGAWA ◽  
Tomoyuki HATAKEYAMA ◽  
Tomoya SHIMOUCHI ◽  
...  
Keyword(s):  
Forced Convection ◽  
High Heat ◽  
Thermal Engineering ◽  
Cooling Performance ◽  
Convection Cooling

135 Relationship between Natural Convection Cooling Performance and Tilt Angle of Thin Enclosure

2018 ◽  
Vol 2018.53 (0) ◽  
pp. 67-68
Author(s):  
Shun Yonezuka ◽  
Takashi Fukue ◽  
Mamoru Kikuchi ◽  
Koichi Hirose ◽  
Yuji Okada ◽  
...  
Keyword(s):  
Natural Convection ◽  
Tilt Angle ◽  
Cooling Performance ◽  
Convection Cooling

Research of electromagnetic and thermal optimization design on air core reactor

2018 ◽  
Vol 13 (5) ◽  
pp. 725-731 ◽  
Author(s):  
Fating Yuan ◽  
Zhao Yuan ◽  
Yong Wang ◽  
Junxiang Liu ◽  
Haibo Su ◽  
...  
Keyword(s):  
Optimization Design ◽  
Thermal Optimization ◽  
Air Core

Forced Convection Cooling of Low-Power Handheld Devices Using a Vibrating Cantilever Beam

2015 ◽  
Vol 7 (2) ◽  
Author(s):  
Jangwoo Kim ◽  
Paul I. Ro
Keyword(s):  
Heat Source ◽  
Cantilever Beam ◽  
Cooling System ◽  
Temperature Drop ◽  
Form Factors ◽  
Handheld Devices ◽  
Cooling Performance ◽  
Handheld Device ◽  
Convection Cooling ◽  
Cooling Technique

In this study, a convection cooling technique for handheld electronic devices is proposed and investigated. The technique uses bulk airflows generated by a vibrating cantilever beam actuated by a rotating imbalance motor. Analytic coupled physics modeling using an approximate integral method within laminar-flow boundary layers was used to analyze the proposed cooling technique. The cantilever beam and enclosure were designed based on the form factors of a typical handheld device. The bulk airflow cooling performances at various probe locations were investigated experimentally for low and high heating loads and numerically verified. The results indicate that a higher heating load of the heat source results in a larger temperature drop at the same convection rate. Also, for the probe locations away from the heat source and closer to the beam, the resulting temperature drops were relatively small despite a stronger velocity field generated by the beam. This is due first to the heat generated by the vibrating beam itself and second to a circulation of the air heated by the heat source to the rest of the regions in the enclosure. In general, a good agreement between experimental and numerical results was attained, even though a slight difference between two results exists. Overall, significant cooling was achieved by the proposed system. With a beam tip deflection of ±4 mm, nearly an 18-fold increase in the cooling performance was achieved compared to a natural convection case. Furthermore, the cooling performance continues to increase as the tip deflection of the cantilever beam increases. Thus, a cooling system using the bulk airflow generated by a vibrating cantilever beam has much potential as a feasible solution for electronic handheld devices.

J0103-4-3 Study on forced convection cooling performance on a high heat density board model in a thin enclosure

2009 ◽  
Vol 2009.6 (0) ◽  
pp. 73-74
Author(s):  
Takashi FUKUE ◽  
Tomoya SHIMOUCHI ◽  
Masaru ISHIZUKA ◽  
Shinji NAKAGAWA ◽  
Tomoyuki HATAKEYAMA ◽  
...  
Keyword(s):  
Forced Convection ◽  
High Heat ◽  
Cooling Performance ◽  
Convection Cooling

A conduction-cooled stage for high-resolution Cryo-SEM

1992 ◽  
Vol 50 (2) ◽  
pp. 1282-1283
Author(s):  
John G. Sheehan
Keyword(s):  
High Resolution ◽  
Liquid Nitrogen ◽  
Mechanical Stability ◽  
Cooling System ◽  
Cold Trap ◽  
Nitrogen Gas ◽  
Particulate Suspensions ◽  
Advantages And Disadvantages ◽  
Convection Cooling ◽  
Styrene Butadiene

The goal is to examine with high resolution cryo-SEM aqueous particulate suspensions used in coatings for printable paper. A metal-coating chamber for cryo-preparation of such suspensions was described previously. Here, a new conduction-cooling system for the stage and cold-trap in an SEM specimen chamber is described. Its advantages and disadvantages are compared to a convection-cooling system made by Hexland (model CT1000A) and its mechanical stability is demonstrated by examining a sample of styrene-butadiene latex.In recent high resolution cryo-SEM, some stages are cooled by conduction, others by convection. In the latter, heat is convected from the specimen stage by cold nitrogen gas from a liquid-nitrogen cooled evaporative heat exchanger. The advantage is the fast cooling: the Hexland CT1000A cools the stage from ambient temperature to 88 K in about 20 min. However it consumes huge amounts of liquid-nitrogen and nitrogen gas: about 1 ℓ/h of liquid-nitrogen and 400 gm/h of nitrogen gas. Its liquid-nitrogen vessel must be re-filled at least every 40 min.

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