Thermal characteristics of a compact LED luminaire with a cooling system based on heat pipes

Pekur, D.V.; Сорокин, В. М.; Nikolaenko, Yu. E.

doi:10.1016/j.tsep.2020.100549

Cited by 24 publications

(9 citation statements)

References 55 publications

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“…When using horizontal placing of the luminaire, the above approach to design and placement of cooling webbing seems to be the most optimal due to active air motion through the channels between the rings of cooling system. As it follows from the results obtained in [35][36][37], this placing of cooling webbing enables to use for heat exchange with ambient air all their area with the highest efficiency.…”

Section: Construction Of the Basic Version Of A Compact Led Luminairementioning

confidence: 78%

“…The operation principle of the offered cooling system has been described in [33,36]. Stating briefly, it is as follows.…”

Section: Construction Of the Basic Version Of A Compact Led Luminairementioning

confidence: 99%

“…The modern method for optimization and designing the cooling systems is based on application of special programs for computer modelling and analysis [36][37][38]. These approaches enable to perform both designing the cooling systems and their thermal analysis for a relatively short time.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of the cooling system design for a compact high-power LED luminaire

Pekur¹,

Nikolaenko²,

Сорокин³

2020

Semicond. phys. quantum electron. and optoelectron.

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Using the method of computer modelling, considered in this paper is optimization of a passive air system design for cooling the powerful LED luminaire based on heat pipes and cooling rings. Thermal and mass characteristics of the cooling system have been studied for various design parameters: distance between rings, thickness of ring materials and thermal loads. It has been shown that, to provide a minimal case temperature of LED source, the optimal distance between cooling rings should be 6 mm, but in this case the mass of cooling system is not least. To reduce the luminaire mass, it is reasonable to choose the distance between the cooling rings equal to 8 mm. Then the temperature of light source increases by only 1.8 °С, or by 2.2%, while the mass of cooling system reduces by 1357 g, or by 20.5%. At the same time, lowering the ring thickness from 2 down to 0.8 mm can in addition reduce this mass by 2700 g, or by 48.6%. However, when doing so the temperature of LED source case is increased by 5.9 °С. The offered cooling system based on heat pipes is capable to provide the thermal resistance 0.131 °С/W when scattering the thermal power 500 W under the maximum temperature of LED source crystal 135.5 °С. Recommendations for application of the developed cooling system have been formulated.

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Section: Construction Of the Basic Version Of A Compact Led Luminairementioning

confidence: 78%

“…The operation principle of the offered cooling system has been described in [33,36]. Stating briefly, it is as follows.…”

Section: Construction Of the Basic Version Of A Compact Led Luminairementioning

confidence: 99%

See 1 more Smart Citation

Optimization of the cooling system design for a compact high-power LED luminaire

Pekur¹,

Nikolaenko²,

Сорокин³

2020

Semicond. phys. quantum electron. and optoelectron.

Self Cite

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“…A high-power LED light source (in this case -CXA3070-0000-000NTHAD50H LED matrix [33]) is installed on one side of the base. In order to increase the cooling efficiency of the LED matrix, the authors of this work propose a new compact cooling system with radial arrangement of heat pipes [34][35][36]. This arrangement brings the pipes to be as close as possible to the powerful LED matrix.…”

Section: Design Parameters Of the Compact Led Luminaire Prototypementioning

confidence: 99%

“…As mentioned in Section 2, the developed basic design of the LED lighting fixture can be scaled depending on the tasks developers are facing. The results of computer modeling of different versions of this lighting fixture with varying number of heat pipes and cooling rings [5,35,36] showed that it is possible to manufacture versions of this luminaire with much higher power values: from 300 up to 600 W. Estimated luminous flux values for modern LED arrays indicate that at this power it is possible to provide at least 30000 and 60000 lm of luminous flux, respectively. These lighting fixtures are able to create uniform lighting in rooms measuring 15×15 m and 20×20 m.…”

Section: Recommendations For Using the Proposed Highpower Led Luminairementioning

confidence: 99%

Electro-optical characteristics of an innovative LED luminaire with an LED matrix cooling system based on heat pipes

Pekur¹,

Сорокин²,

Nikolaenko³

et al. 2020

SPQEO

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Widespread use of energy-saving LED lighting systems powered by renewable energy sources, solar energy in particular, will contribute to the improvement of global ecology. One of the structural elements of such lighting systems is LED luminaire. The authors of this article perform a first ever experimental study of electro-optical characteristics of the basic version of a compact high-power LED luminaire for indoor use. The particular feature of this lighting device is that its cooling system for the LED light source is based on heat pipes and concentric cooling rings. Such design allows ensuring the required cooling efficiency of the LED matrix. The revealed trends in optical and electrical parameters during temperature stabilization indicate that the proposed cooling system is highly efficient in maintaining normal thermal conditions of LED light sources with a power of up to 140.7 W and a luminous flux of up to 15083 lm. The results on determining spatial distribution of luminous flux of these luminaires indicate that they may be used for lighting large rooms with high ceilings. Scaling the basic modular design version of the cooling system allows increasing the power of the LED light source up to 600 W.

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Heat Sink Design for High Power LED Lamp Based on Differential Evolution Algorithm and Heat Pipes

Zhang

Ling

2022

Lecture Notes in Electrical Engineering

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Thermal characteristics of a compact LED luminaire with a cooling system based on heat pipes

Cited by 24 publications

References 55 publications

Optimization of the cooling system design for a compact high-power LED luminaire

Optimization of the cooling system design for a compact high-power LED luminaire

Electro-optical characteristics of an innovative LED luminaire with an LED matrix cooling system based on heat pipes

Heat Sink Design for High Power LED Lamp Based on Differential Evolution Algorithm and Heat Pipes

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