Tip:
Highlight text to annotate it
X
((How to model different types of cooling))
Downflow cooling. InRow cooling. Over aisle cooling. EcoBreeze cooling.
Let's have a look at different data center cooling models.
This room has traditional downflow cooling.
Large cooling units send cold air under raised floor.
Cold air comes out through perforated floor tiles.
Let's add more perforated tiles.
Capture Index and temperatures are re-calculated immediately.
We can look in more detail under the raised floor.
I'm enabling additional overlays, specific for downflow cooling.
Floor plenum overlay calculates speed and volume of air movement.
This is the air pressure in the plenum.
Let's look at this room in 3D view!
We can see perforated tiles
and raised floor plenum.
Let's calculate temperature map.
The temperature map is calculated on client computer.
Once it is calculated, I can position cooling plane anywhere in the room.
I can also look at velocity plane.
I can see how air comes out of perforated tiles
and how it is sucked in to coolers.
I can center view on a particular item of equipment.
Now, the view will rotate around this item.
Note that 3D calculations are based on nameplate values.
We have looked at the downflow cooling.
Let's look at InRow cooling.
In this room, cooling units are positioned in the rows.
I can get load and temperature values for cooling units.
For each rack, I can get the temperature and capture index.
I can also simulate switching off of a cooling unit
and see immediate results.
Let's look at this room in 3D.
This cooling type does not require raised floor.
Temperature map is faster to calculate in this model.
Walkway seems to be rather hot, but the rows are properly cooled.
This room looks very empty.
I can add some room fixtures as navigation aids.
I can add a door to the room
and a window.
I can define the size and position of these fixtures.
Doors and windows will appear in 3D view,
but they do not affect the calculations.
We presume them to be fully insulated.
We have looked at the InRow cooling.
Let's look at another cooling model.
In this room, cooling units are placed above the hot isle.
They are capturing hot air expelled by equipment.
This model requires hot aisle containment system.
Overhead coolers are placed on top of it.
Containment system keeps hot air from the rest of the room.
Let's look at this in 3D!
We presume that HACS have a roof between the coolers.
Calculating temperature map takes longer.
Entire room is at the same temperature.
Let's change the temperature scale.
Now I can see some hot air inside HACS.
Door presumed to be well insulated.
We can see more hot air spots.
Let's look at the Velocity plane.
The colors represent air velocity, not the temperature.
I can see how air is expelled by coolers and sucked back by racks.
We have looked at over aisle cooling.
There are no coolers in this room.
In this model, coolers are positioned outside the building.
We model this by placing ventilation grills on the walls.
They are moving air in and out of the room.
In and Out airflow must be balanced.
I'm adding another grille with air coming in to the room.
It is positioned just above the floor.
Let's look at this in 3D.
Air is expelled through grills above the drop ceiling.
Cold air is supplied in to the cold aisle.
Let's calculate the temperature map.
I can see hot air rising to the ceiling.
You can change the temperature map colors.
For example, use more traditional infracam colors.
Let's look at the velocity plane.
I can see air flowing in to the room.
Air eventually diffuses through the drop ceiling.
We have looked at different cooling models.