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G3.1.1 exception d states that if a kitchen has an exhaust hood airflow rate of greater than 2400 l/s, a secondary HVAC system should be used for that space. What would be the...

We are working on a project pursuing LEED v4.1 certification using the Appendix G Performance Path. The air-cooled chiller in our design complies with the IPLV (Integrated Part Load Value)...

Hi Everyone,

A project I'm modelling has a MAHU supplying 1800 l/s of Outdoor Air to the kitchen area to compensate for the 2000 l/s exhaust from the kitchen ecology unit. I have two...

Hi Everyone,

A project I'm working on has Solar Collectors as a primary source of service water heating with electric heaters for backup. I had modeled the service water heating electric...

If the skylight area is greater than 5% of the...

For this pre-requisite, we are developing a materplan where the buildings will be compliant with Option 4 once they are built. But they are not there yet and we are in the middle of a desert. Can...

LEED NC 2009

Our project is a major railway station in Qatar. The shape of the...

I'm creating a PRM energy model for a Mall project which is a Core & Shell project in LEED v4. 

The project has some spaces with partially designed HVAC systems. For example, a Fresh...

In some of our projects, we are providing outdoor air to some spaces which do not require outdoor air supply as per ASHRAE 62.1. For example, water tank room, some storages etc.
 

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In a Mall project, it has multiple kitchens/restaurants which have ecology units that exhaust air (fume hoods). One Makeup Air Handling Unit (MAHU) is provided in each of these spaces to 'makeup...