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Re: [EnergyPlus_Support] 3rdOrderBackwardDifference in Energy Plus



E+ saves the previous zone temps in history terms, t-1, t-2, t-3, and 
uses those as needed. Of course these are updated every time step (i.e., 
using first in last out).

On 8/16/2012 11:58 AM, bokelai1989 wrote:
> Hi, All,
> In the Engineering Manual of Energy Plus, it mentions a method of "3rdOrderBackwardDifference".
>
> It says "This algorithm requires zone air temperatures at three previous time steps and uses constant temperature coefficients. The assumption is that three previous time steps lengths are the same."
>
> I would like to know in terms of its inner calculation mechanism, how energy plus acquires the zone air temperature at three previous time steps?
>
> Thanks!
> Na
>
>
>
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Primary EnergyPlus support is found at:
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