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[EnergyPlus_Support] Re: Do you know the base line to create zone depth? 3.7 m or 6 m. or any

Thanks Jason, 
It really helpful.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Jason Kirkpatrick <jason.alan.kirkpatrick@...> wrote:
>
> I think they are trying to specify the depth of the perimeter zones for a
> model using core and perimeter zoning. Per ASHRAE 90.1, this depth is 15 ft
> 
> 90.1-2004 Appendix G Table G3.1 Section 8
> 
> 8. Thermal Blocks ? HVAC Zones Not Designed
> Where the HVAC zones and systems have not yet been designed,
> thermal blocks shall be defined based on similar internal load densities,
> occupancy, lighting, thermal and space temperature schedules,
> and in combination with the following guidelines:
> (a) Separate thermal blocks shall be assumed for interior and perimeter
> spaces. Interior spaces shall be those located greater than 15 ft
> from an exterior wall. Perimeter spaces shall be those located
> within 15 ft of an exterior wall.
> (b) Separate thermal blocks shall be assumed for spaces adjacent to
> glazed exterior walls; a separate zone shall be provided for each
> orientation,
> except that orientations that differ by less than 45 degrees
> may be considered to be the same orientation. Each zone shall
> include all floor area that is 15 ft or less from a glazed perimeter
> wall, except that floor area within 15 ft of glazed perimeter walls
> having more than one orientation shall be divided proportionately
> between zones.
> (c) Separate thermal blocks shall be assumed for spaces having
> floors that are in contact with the ground or exposed to ambient
> conditions from zones that do not share these features.
> (d) Separate thermal blocks shall be assumed for spaces having
> exterior ceiling or roof assemblies from zones that do not share
> these features.
>




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