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Reduce need for thermal energy by flushing cool air or water through a building at night, directly purging thermal building mass. Heat gains generated during the day are absorbed and released over a 24-hr periodical cycle.

See 1.7.5 Fabric Energy Storage

See 1.7.5 Fabric Energy Storage

See 1.7.5 Fabric Energy Storage

See 1.7.5 Fabric Energy Storage

The diurnal temperature difference for air must be large (around 20° F, 11° C). Nighttime cooling requires a building with traditional hours of occupancy (max 10 hrs.).

1.2.1 Natural Ventilation
1.2.5 Stack Ventilation
1.7.5 Fabric Energy Storage
1.7.7 Evaporative Cooling
1.7.7 Evaporative Cooling
1.7.8 Passive Solar Heating