[2011] Addition Space Parameters (OPEN)

[Joe Fields]

Currently there are a decent amount of parameters in the spaces. There are some more that would be very helpful to add:

Cooling and Heating Supply airflow (for Actual, Calculated, and Specified)
Supply Airflow (Cooling and Heating) per Area (for Actual, Calculated, and Specified)
Cooling and Heating Air Changes per Hour (for Actual, Calculated, and Specified)
Cooling and Heating load per area (for Actual, Calculated, and Specified)
Envelope Loads (Cooling and Heating) separated for Roof Conduction, Glass Solar, Glass Conduction, Wall Conduction, Floor Conduction, and Infiltration (for Actual, Calculated, and Specified)

Basically anything that comes out of our load programs that can be associated with each room/space. If nothing else, having the ability to add these parameters manually and then associated formulas to them to do calculations would be handy (i.e. [Specified Supply Airflow] / [[Area] = CFM/SF or ([Supply Airflow] x 60) / Volume = Air Changes per Hour)

[mjdanowski]

You can add Shared Parameters/Project parameters for spaces if you would like custom data points. Integration into the load calcs though would be something requiring a new feature.

[walz]

You can add Shared Parameters/Project parameters for spaces if you would like custom data points. Integration into the load calcs though would be something requiring a new feature.

Following are the things that need to be added as space properties.

1. Miscellanoues Loads option (both sensible and latent) other than people, lighting and equipment.

2. Outside air input should be there in space instead of being in zone. And input methods should be 1. CFM/person 2. CFM/ft2 and 3. CFM (direct CFM input is missing)

3. In the building construction dialogue, Curtain panel should be added. This curtain panel should consider the glazing load separately if this curtain panel has glazing in it.

4. Partittion wall loads are calculated but the input to calculate the load which is the temperature of unconditioned space adjacent to the space considered is not there. it should be added

[Joe Fields]

You can add Shared Parameters/Project parameters for spaces if you would like custom data points. Integration into the load calcs though would be something requiring a new feature.

I know you can add the parameters but I don't see how you can assign formulas to those parameters for spaces like you can for parameters in families. Some of the values on the list can be calculated easily with parameters that already exist by simple plugging them into a formula. I know I can create some of these as Calculated Values in a schedule but I would like to be able to show these in the space properties as well as use a color scheme to display them as well (i.e. a CFM/SF color scheme to help visually check if spaces have reasonable airflow based on location and exposures). If I have an all interior office space with 3+ cfm/sf, there is something wrong. An easy way to visualize that would be via the color schemes.




2. Outside air input should be there in space instead of being in zone. And input methods should be 1. CFM/person 2. CFM/ft2 and 3. CFM (direct CFM input is missing)


Good point, that one bugs me too. We never assign the outside air requirements by zone, it's always by spaces. To expand on this I would add ASHRAE 62.1 calculation values (Type based on 62.1 tables, Cooling Ez value, Heating Ez value, & Er value). A Revit ASHRAE 62.1 calculation/report would be really cool but I don't expect to see it for a few years.