There are multiple ways to model thermal storage in the proposed design. The baseline building does not have thermal storage.
90.1-2019
There are multiple ways to model thermal storage in the proposed design. The baseline building does not have thermal storage.
| Storage Type | |
|---|---|
| Applicability | All thermal storage systems |
| Definition | A type of thermal energy storage (TES) that indicates the storage medium |
| Units | List |
| Input Restrictions | Ice, chilled water |
| Baseline Building | No thermal storage systems |
| Configuration | |
|---|---|
| Applicability | All thermal storage systems |
| Definition | Indication of how the TES is configured and operated in relation to the chilled water cooling |
| Units | List |
| Input Restrictions |
Series, chiller upstream Series, chiller downstream Parallel |
| Baseline Building | No thermal storage systems |
| Ice Storage Type | |
|---|---|
| Applicability | All thermal storage systems with storage type = ice |
| Definition | Indication of the storage type for ice storage |
| Units | List, with Options for Internal Melt, External Melt |
| Input Restrictions | Ad designed |
| Baseline Building | No thermal storage systems |
| Storage Capacity | |
|---|---|
| Applicability | All thermal storage systems using ice storage |
| Definition | Nominal storage capacity of the tank |
| Units | Ton-hrs |
| Input Restrictions | None |
| Baseline Building | No thermal storage systems |
| Tank Volume | |
|---|---|
| Applicability | All thermal storage systems using ice storage |
| Definition | Nominal storage capacity of the tank |
| Units | ft3 |
| Input Restrictions | None |
| Baseline Building | No thermal storage systems |
| CHW Setpoint Schedule | |
|---|---|
| Applicability | All thermal storage systems using ice storage |
| Definition | Nominal storage capacity of the tank |
| Units | Series, °F |
| Input Restrictions | None |
| Baseline Building |
No thermal storage systems |
| Deadband Temperature Difference | |
|---|---|
| Applicability | All thermal storage systems using chilled water |
| Definition | The deadband temperature difference between enabling and disabling use of the TES system for cooling |
| Units | °F |
| Input Restrictions | None |
| Baseline Building |
No thermal storage systems |
| Maximum Temperature Limit | |
|---|---|
| Applicability | All thermal storage systems using chilled water |
| Definition | The minimum allowed temperature of the tank, below which charging of the tank cannot occur |
| Units | °F |
| Input Restrictions | None |
| Baseline Building |
No thermal storage systems |
| Storage Tank Location Indicator | |
|---|---|
| Applicability | All thermal storage systems using ice storage |
| Definition | Nominal storage capacity of the tank |
| Units | List |
| Input Restrictions |
Schedule, zone, or exterior If schedule, the ambient temperature schedule must be specified. If zone, the zone name must be specified. |
| Baseline Building |
No thermal storage systems |
| Storage Tank Heat Gain Coefficient | |
|---|---|
| Applicability | All thermal storage systems using chilled water |
| Definition | The heat transfer coefficient between the tank and the ambient surroundings |
| Units | Btu/h-°F |
| Input Restrictions |
None |
| Baseline Building |
No thermal storage systems |
| Use Side Heat Transfer Effectiveness | |
|---|---|
| Applicability | All thermal storage systems using chilled water |
| Definition | The heat transfer effectiveness between the use side water and the tank water |
| Units | None |
| Input Restrictions |
Between 0 and 1 |
| Baseline Building |
No thermal storage systems |
| Use Side Design Flow Rate | |
|---|---|
| Applicability | All thermal storage systems using chilled water |
| Definition | Design flow rate through the use side of the storage tank |
| Units | gpm |
| Input Restrictions |
None |
| Baseline Building |
No thermal storage systems |
| Source Side Heat Transfer Effectiveness | |
|---|---|
| Applicability | All thermal storage systems using chilled water |
| Definition | The heat transfer effectiveness between the source side water and the tank water |
| Units | None |
| Input Restrictions |
Between 0 and 1 |
| Baseline Building |
No thermal storage systems |
| Source Side Design Flow Rate | |
|---|---|
| Applicability | All thermal storage systems using chilled water |
| Definition | Design flow rate through the source side of the storage tank |
| Units | gpm |
| Input Restrictions |
None |
| Baseline Building |
No thermal storage systems |
| Tank Recovery Time | |
|---|---|
| Applicability | All thermal storage systems using ice storage |
| Definition | This is the time in hours for the tank to cool from 58°F to 48°F. This input is only used if the source side design flow rate is not specified. |
| Units | Hours |
| Input Restrictions |
None |
| Baseline Building |
No thermal storage systems |