Fan vs. passive heat sink with heat pipe in cooling of high power LED

Badalan, N.; Sauseng, Paul

doi:10.1109/siitme.2017.8259911

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…However, the efficiency of this cooling system depends on the amount of air flowing around the power cables. The use of a passive cooling system is considered in [11][12][13][14] as well as analyzed in this paper.…”

Section: Introductionmentioning

confidence: 99%

Effect of Solar Radiation on Current-Carrying Capacity of PVC-insulated Power Cables – the Numerical Point of View

2019

Teh. vjesn.

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Power cables are usually buried in the soil, which results in their relatively high current-carrying capacity. However, there are cases in which the starting/final section of a cable line runs along a pole of an overhead power line. Power cables can be directly exposed to solar radiation then, and this negatively influences their currentcarrying capacity as well as estimated life of the cables' insulation. An analysis of thermal phenomena in PVC-insulated low-voltage power cables, exposed to solar radiation, is conducted in the paper. Current-carrying capacity of an example cable system, for various placements of the cables, is evaluated. The analysis has shown that solar radiation may significantly reduce current-carrying capacity of PVC-insulated cables. A possible method of protection of cables against solar radiation, and its effectiveness, is presented. To investigate the mentioned thermal phenomena, a Computational Fluid Dynamics (CFD) has been used.

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Section: Introductionmentioning

confidence: 99%

Effect of Solar Radiation on Current-Carrying Capacity of PVC-insulated Power Cables – the Numerical Point of View

2019

Teh. vjesn.

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Aydınlatma Armatürleri için Soğutucu Modüllerinin Deneysel Değerlendirilmesi ve Yenilikçi Ürün Tasarımı

Feyzioğlu

2020

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Enerji çağımızın en önemli konularından biri haline gelmiştir. Enerjinin verimli kullanılması hem devletler hem de şirketler açısından hayati bir önem taşımaktadır. LED teknolojisi aydınlatma cihazları içerisinde en verimli cihazlar olarak görülmektedir. LED aydınlatıcıların soğutulması, cihazın ömrü ve performansı açısından son derece önemlidir. Bu çalışmada alüminyum bloklara göre daha hafif ve modüler yapıda, aydınlatma armatürleri için yüksek ısı atma kapasitesine sahip soğutucu modülüne sahip alternatif çözümler değerlendirilmiş ve yenilikçi bir tasarım geliştirilmiştir. Prototip olarak üretilen soğutucu modülü üzerinde sıcaklık testleri yapılmış ve sportif aydınlatması kullanımında uygunluğu incelenmiştir. Testler sonucunda ısınma probleminin büyük ölçüde çözüldüğü gözlemlenmiştir. Modül içerisinde armatürleri soğutmak maksadıyla kullanılan herhangi bir fan gücüne ihtiyaç duyulmadığı için fazladan enerji harcanmayarak ısı transferinin sağlandığı görülmüştür.

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Design of Power Cable Lines Partially Exposed to Direct Solar Radiation—Special Aspects

2020

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Power cable lines are usually buried in the ground. However, in some cases, their ending sections are mounted along the supports of overhead lines. This leads to a situation where the cables are exposed to direct solar radiation and, consequentially, overheat. The paper presents the advanced computer modelling of power cables’ heating, considering their insolation as well as the effect of wind. The temperature and current-carrying capacity of power cables—during exposure to direct solar radiation—are evaluated. An effective method of limiting the unfavourable impact of the sun is discussed. In the presence of solar radiation, the proposed method enables a significant increase in the power cables current-carrying capacity.

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Fan vs. passive heat sink with heat pipe in cooling of high power LED

Cited by 3 publications

References 4 publications

Effect of Solar Radiation on Current-Carrying Capacity of PVC-insulated Power Cables – the Numerical Point of View

Effect of Solar Radiation on Current-Carrying Capacity of PVC-insulated Power Cables – the Numerical Point of View

Aydınlatma Armatürleri için Soğutucu Modüllerinin Deneysel Değerlendirilmesi ve Yenilikçi Ürün Tasarımı

Design of Power Cable Lines Partially Exposed to Direct Solar Radiation—Special Aspects

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