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Re: [EnergyPlus_Support] U values and SHGC of air filled and argon filled double glazing

To: "EnergyPlus_Support@xxxxxxxxxxxxxxx" <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Subject: Re: [EnergyPlus_Support] U values and SHGC of air filled and argon filled double glazing
From: "Amrita Ghosh amritaghosh1986@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Date: Mon, 22 May 2017 09:06:22 +0000 (UTC)
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I have not used the simple glazing method. I have provided the optical properties of glass in "WindowMaterial:Glazing" and selected the gas type in "WindowMaterial:Gas". Then I have provided the three layers (glass, gas, glass) in "Construction".
When I am comparing the results, the total heat gain through the window is higher for Argon DGU (though the U-value is lower). That's why I wanted the equation/ method that EnergyPlus follows for calculating SHGC.
Thank you,
Amrita

On Thursday, 18 May 2017 4:00 AM, "rahul a rahula7@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:



Are you using the simple glazing method or layer-by-layer method to describe the glazing? As Jean mentions, the simple glazing method can give unpredictable results sometimes. If you used the layer-by-layer method, what are your glass layers?

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- Re: [EnergyPlus_Support] U values and SHGC of air filled and argon filled double glazing
  - From: Jean Marais jeannieboef@xxxxxxxxx [EnergyPlus_Support]

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