GMG's THERMAL-XR(R) Demonstrates Potential for Electronics Heat Sink Miniaturization and Efficiency

In This Article:

Brisbane, Queensland, Australia--(Newsfile Corp. - December 11, 2024) - Graphene Manufacturing Group Ltd. (TSXV: GMG) (OTCQX: GMGMF) ("GMG" or the "Company") is pleased to provide a business update on the commercialisation progress of THERMAL-XR® Powered by GMG Graphene.

CUSTOMER ENGAGEMENT UPDATE

GMG continues to make progress in testing with companies in multiple industries for the use of THERMAL-XR® in their products, including on heat sinks for electronics. Figure 1 shows an aluminium heat sink that is commonly used in electronics for removing heat from printed circuit boards, electrical circuits and processing silicon chips, and that has been coated with THERMAL-XR®.

Figure 1: THERMAL-XR® Coated Electronics Heat Sink

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HEAT SINK MINIATURISATION:

Third-party verified modelling demonstrates that applying THERMAL-XR® to a heat sink could reduce its size by up to 39%, while maintaining equivalent thermal performance, offering the potential for weight and material cost savings. Figure 2 shows that the maximum temperature reached by a heat sink coated with THERMAL-XR® is 62 degrees centigrade, 23% lower than the maximum temperature of 80 degrees Celsius reached by a heat sink of equal size that has not been coated with THERMAL-XR®. Figure 3 shows that a heat sink coated with THERMAL-XR® that is 39% smaller in terms of width achieves the same performance as a heat sink that has not been coated with THERMAL-XR®.

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Material

Ambient Temp. (˚C)

Power (W)

Emissivity

Convection Type

Heat Sink Dimensions (mm)

Max Temp. (˚C)

Temperature Difference Between Aluminium and THERMAL-XR®

Width

Length

Height

ΔT(˚C)

ΔT%

Aluminium

25

80

0.11

Natural Convection

62

58

38

80

-18

23%

THERMAL-XR®

0.95

62

 

Figure 2: Modelling of an Electronic Heat Sink with THERMAL-XR® coated on all sides, excluding the base, shows a 23% reduction in maximum temperature reached.

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Material

Ambient Temp. (˚C)

Power (W)

Emissivity

Convection Type

No. of Fins

Heat Sink Size (mm)

Temperature (˚C)

Width

Length

Height

ΔW%

Max

Min

Aluminium

25

80

0.11

Natural Convection

8

62

58

38

-

80

76.7

THERMAL-XR®

0.95

5

38

58

38

-39%

80

75

 

Figure 3: A heat sink coated with THERMAL-XR® on all sides, excluding the base, that is 39% smaller achieves the same results and temperature as the bare aluminium heat sink depicted in Figure 1.