There are multiple ways to model thermal storage in the proposed design. The baseline building does not have thermal storage.
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 |