Energy storage night cooling

What is night cooling?

In many climates and buildings types this can be done during the night using natural or mechanical ventilation to cool the thermal mass at night so that they can absorb heat during the day, thus requiring less energy for conditioning the air. This strategy has been termed ‘night cooling’ sometimes also called ‘night purging’.

Is night ventilation a good cooling strategy?

Night ventilation is regarded as a promising cooling strategy by storing night cooling in the thermal mass of the building. However, night ventilation performance in hot summer is restricted by the climatic limits.

Can night ventilation save energy?

A review of control systems, and supplementary cooling coupled with night ventilation. The rising costs of energy usage in the building sector have intensified research interest in passive energy saving strategies such as night ventilation (NV).

What is cool thermal energy storage?

Cool Thermal Energy Storage is a new application of an old idea that can cut air conditioning energy costs in half while preparing your building for the future. Air conditioning of commercial buildings during summer daytime hours is the largest single contributor to electrical peak demand.

Is there a night cooling strategy?

A night cooling strategy is also available. The overheating risk was monitored and simulated. Annual simulations indicated that the total building level amount of hours greater than 25 °C was around 3% of the time annually. There were no hours in the typical year that was above 28 °C.

How does reducing daytime cooling load affect a building's ventilation potential?

3.2. Cooling load parameters and reducing daytime cooling loads The night ventilation potential is significantly improved by the increased cooling energy demand of the building as the increased cooling demand created at night results in more available energy stored in the building during the day.