Experimental Study on Heat-leakage of 100 A-Class PCL With Varying Cross Section

Dai, Shaotao; Liu, Mingchuang; Ma, Tao; Zhang, Teng; Hu, Lei; Wang, Bangzhu; Wang, Yinshun

doi:10.1109/tasc.2018.2882001

Cited by 3 publications

(5 citation statements)

References 7 publications

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“…If change these optimal dimension parameters to the optimal ratio of L/A, there still exists a wide variety in the ratios of (L/A) p and (L/A) c . That is also consistent with previous studies [28,[31][32][33], in which the optimal ratios of L/A were in a wide range. Hence, the problem of optimization of the PCLs is a multisolution problem.…”

Section: Symbolsupporting

confidence: 93%

“…Based on these settings, the optimal values of 120 A PCLs for L 2 and L 3 are increased with the increase in the radius of copper leads r 1 . In addition, the lowest heat leakage for three optimization cases is about 30.0 W/kA, which is in good agreement with previous works [28,[31][32][33]. This indicates the method used in this work is reliable.…”

Section: Global Optimization Of the 120 A Pclssupporting

confidence: 91%

“…In this paper, the finite element method is used to analyze the heat transfer in PCLs. A two-dimensional asymmetrical thermoelectricity-coupled model is established by COMSOL 5.3 [34] with the temperature characteristics of material parameters reported in [28,[31][32][33]. Thermal (electric) contact resistance and thermal radiation are ignored.…”

Section: Modelmentioning

confidence: 99%

“…For the chosen five optimized dimensional parameters, our orthogonal experiment considers their minimum and maximum values, as shown in Table 1. The principle for data selection is based on the previous literature [28,[31][32][33] and our simulation experience. As there are five parameters, adding the ten parameters that describe the coupling effect between them, we design an L 16 (2 15 ) orthogonal experimental table to achieve our goal.…”

Section: Optimization Proceduresmentioning

confidence: 99%

“…Later, Jeong limited the thermoelectric parameter independent of temperature to the Seebeck coefficient and obtained a more accurate analytical solution [27]. On this basis, some groups have further considered the influence of the cooling mode [28,29], the thermoelectric performance [30], the structure, and the higher current capacity of PCLs on the heat leakage [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Kiloampere Peltier Current Lead Using Orthogonal Experimental Design Method

et al. 2021

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Reducing heat leakage is crucial for the development of practical superconducting devices. In this work, orthogonal experimental design method is first used to optimize the design of hundred-ampere and kiloampere Peltier current leads (PCLs). Geometry and arrangement of Peltier materials and conductive materials of the current lead are analyzed. Through our simulation, we find that the coupling effect between the radius of Bi2Te3 (r2) and the length of Bi2Te3 (L2) has the greatest effect on the heat leakage of PCLs at the cold end for both PCLs. Furthermore, numerical simulations suggest that the lowest heat leakage at the cold end (approximately 30.0 W/kA) is at the same level for both hundred-ampere and kiloampere PCLs. If taking the heat dissipation area at the hot end into account, multiterminal solutions are better solutions for kiloampere current leads.

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Section: Symbolsupporting

confidence: 93%

Section: Global Optimization Of the 120 A Pclssupporting

confidence: 91%

Section: Modelmentioning

confidence: 99%

Section: Optimization Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimization of Kiloampere Peltier Current Lead Using Orthogonal Experimental Design Method

et al. 2021

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Electrical discharge resistance of polymeric nanocomposites

Banerjee

Saini

2021

IET Nanodielectrics

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The trend of choosing insulating materials has changed in the past few decades, and a considerable shift has occurred from conventional ceramic to non-ceramic insulating materials. The addition of inorganic fillers has greatly improved the thermal conductivity, discharge resistance, hydrophobicity recovery, and vandalism-resistance properties of polymeric insulating materials. Since the beginning of the present century, the field of nanomaterial research has gained much attention. Several studies have been conducted to investigate and analyze polymer nanocomposites by adding nanoparticles of varying size and concentration as fillers. The aim is to improve the characteristics and reformation of thermal, electrical, and mechanical properties of existing polymeric insulation materials. However, certain inconsistencies are prevalent with results obtained for polymer nanocomposites. A comprehensive review is presented based on available literature focussing on the advancement from polymeric insulating materials to polymeric nanocomposites and its impact on partial discharge resistance, surface charging, and tracking and erosion resistance. It is observed that the weight percent and dispersion of nano-or micro-sized particles into the base polymer matrix governs the performance of polymer composites. At higher filler loading, resistance to partial discharge and tracking and erosion decreases as a result of the agglomeration of fillers, whereas resistance to surface charge accumulation increases at higher filler loading because the formation of shallow traps increases the charge decay rate. It is suggested that when both micro-and nanofillers are mixed in proper proportion, micro-nano hybrid composites provide better performance than composites filled with only nano-or microfillers.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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