A passive chilled beam is normally suspended from a ceiling and consists of a heat exchanger in a housing, but does not contains an integral air supply like an active chilled beam.
Required Objects
The passive chilled beam must have the following properties.
- It must be connected to a hot water loop.
- It must be connected to a chilled water loop.
- It must be connected to a conditioned zone.
Design Assumptions
- The passive chilled beam is modeled as a four pipe fan coil with no fan power at the moment.
| Property | Value | Notes |
|---|---|---|
| Cooling discharge air temperature | 17°C | This is passive air movement. |
| Heating discharge air temperature | 29.44°C | This is passive air movement. |
Cooling Coil
The cooling coil has the following assumptions.
| Property | Value | Notes |
|---|---|---|
| Coil entering air temperature | N/A | Mix of air system and induced zone temperature. |
| Design coil leaving air temperature | 17°C | It is on the colder side of discharge temperatures. |
| Chilled water design inlet temperature | N/A | Set by the chilled water loop. |
| Chilled water design outlet temperature | N/A | Set by the chilled water loop. |
Heating Coil
The heating coil has the following assumptions.
| Property | Value | Notes |
|---|---|---|
| Coil entering air temperature | N/A | Mix of air system and induced zone temperature. |
| Design coil leaving air temperature | 29.44°C | |
| Hot water design inlet temperature | N/A | Set by the hot water loop. |
| Hot water design outlet temperature | N/A | Set by the hot water loop. |