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New Member
Posts: 2
Registered: ‎11-23-2012

Fully enclosed lighting unit

89 Views, 2 Replies
11-23-2012 06:48 AM

Does anyone have any knowledge in this area please?

 

I have a sealed light unit with a number of LEDs and a driver inside. Is it possible to solve the model in Simulation CFD without specifying and inlet or outlet of air. My aim is to examine different heat sinks to determine which performs most efficiently.

 

Any input would be much appreciated, even if it a pointer in the right direction within the Simulation CFD program.

 

Cheers,

 

Lewis

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wildej
Posts: 643
Registered: ‎08-25-2011

Re: Fully enclosed lighting unit

11-23-2012 08:12 AM in reply to: DesignerLewis

Hi,

 

You could simply apply a film coefficient to the outside surfaces of the unit, this would allow heat to be lost. 5W/m2/K at ambient is a good start. This would not be as accurate as running with an extternal air volume though.



Jon Wilde
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New Member
Posts: 2
Registered: ‎11-23-2012

Re: Fully enclosed lighting unit

11-26-2012 01:01 AM in reply to: wildej

Thank you John I will give that a go

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