Dear all, I have a suspended ceiling with a 60 cm air gap between the panels and the reinforced concrete slab where all the electro-mechanical lies, but it doesn't act as plenum zone si

I have a project that is considering using the Core Performance Guide option for compliance with this credit.

If a new building will be served by an existing chiller plant that already serves an existing building, does the Plant design for the Proposed Alternative need to model the full chiller size, even

Question: I am working on a new LEED-NC project in california that is using a modular/prefab construction type with mechanical systems that do not require permits via the T-24 code.

ASHRAE 90.1-2007 Sec G3.1.3.10 requests that users specify pump power of 22 W/gpm, with a primary / secondary pumping system and variable flow on the secondary side.

Consider a space, storage, with no heating, modelled with heating setpoint -50 degC, receives air from a central air handling unit VAV system, where the delivered air is pre-conditioned from Outdoo

My baseline is under system 6 in which the parallel PIU fans has to be introduced for each zones.

We have a hotel development project in China seeking for the LEED-NC v2009 certification. We are now facing a problem of setting the baseline case for the energy model.

In the section 8.4 Feeder conductors shall be sized for a maximum voltage drop of 2% at design loadand branch circuit condutors shall be sized for a maximum voltage drop of 3% at design load. I'm