Phase Change Technology for Energy Efficiency
What is Phase Change & How it Works
Phase change is a thermodynamic transition of physical matter from one state to another due to a change in energy levels of the material. These transitions are part of our everyday lives such as the ice cubes in a cold drink melting. EcoCore uses a vegetable-based phase change material or PCM which similar to ice melting at 32°F to maintain a cold drink, PCM is designed to melt at 75°F. This allows the PCM to be used to absorb solar and building thermal energy during the normal temperature deviations that occur throughout the day of any office building. As the material changes states it absorbs energy allowing for natural safe passive energy savings to occur.
What is EcoCore?
EcoCore access floor panels are steel welded shells filled with a unique mixture of structural cement and bio-based PCM that allows the panel to absorb thermal energy while maintaining a high level of integrity and quality expected from Tate’s raised access floors. This is possible due to utilizing a patent pending method of mixing microscopic spheres of encapsulated PCM into the cement. The spheres maintain their size, shape and integrity throughout phase transitions. This allows the panels to seamlessly integrate into a raised floor installation providing a low impact thermal mass to absorb energy during the day that would otherwise affect both the energy efficiency and comfort level of the office. The stored energy is then released again overnight as the temperature drops below the 75º melting point.
EcoCore: How It Works
EcoCore Perimeter Solution
Using EcoCore in the perimeter zone of the office will help to reduce the overall peak load in the space and delay the occurrence of the peak load to later in the day. By reducing the overall peak load the amount
of cooling required to keep the space comfortable is reduced. In addition, delaying the peak to later in the day the load can often be handled with free economizer cooling or with reduced rate electricity.
Click play for a visual presentation of how EcoCore works:
|Solar load warms the panels during the day. As the panels warm, the phase change material melts absorbing energy.||The energy is stored in the panels to be released during non-peak hours.||As the panels cool overnight, the phase change material solidifies.|