[esp-r] Re: The position of low-e coating in double glass.

[Geissler Achim]

Hi Young-Sub An,

 

now it is clear: Your construction (!) has two faces: Internal and
External. The intermediate glass faces of the 3 layered set up - as
mentioned before - are not taken into account in regard to long wave
radiation exchange, i.e., the insulating glazing is not modeled with an
actual air gap featuring separate conduction, convection and radiation.
Moreover, the gap thermal properties are summed up in the “gap R”, 0.17
in your case.

 

So, your cases 1 and 4 are the same as are cases 2 and 3. All is in order.

 

Regards,

Achim

 

 

  _____  

From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-
bounces at lists.strath.ac.uk] On Behalf Of ????
Sent: Monday, December 11, 2006 9:25 AM
To: esp-r at lists.strath.ac.uk
Subject: [esp-r] The position of low-e coating in double glass.

 


  

I analyzed surface temperature according to position of low-e coating in
double glass. 

But, I find out the result that can't understand. 

The result of surface temperature is the very same case1 and case4, case2
and case3. 

I guess that ESP-r program appear number① value of emissivity int and
number④ value of emissivity ext  regardless of glass. 

Please, solve the problem. 

Thank you. 

 

Sincerely 

Young-Sub An 

----------------------------------------------------------------------------
---------------------------------------------

The following messages are to explain attached files(JPG).

Case 1. -> Low-e coating is applied to number④ of glass surface. 

Case 2. -> Low-e coating is applied to number③ of glass surface. 

        To apply on number③ of glass surface changes the emissivity value. 

Case 3. -> Low-e coating is applied to number① of glass surface. 

        To apply on number① of glass surface inverts glass(dlow24) of case
1. 

Case 4. -> Low-e coating is applied to number② of glass surface. 

        To apply on number② of glass surface changes the emissivity value. 




Hanbat Nation University 
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