Many materials such as, chocolate, metals, sand and water/ice change from one physical state to another when reaching there melting point temperature. The melting point of a phase change material is known as its Q-Value. For water/ice has a Q-Value of 32f°/0c°.
When a phase change material reaches its Q-value and changes from the physical state of crystalline solid to that of a liquid (or vise versa) a great deal of energy is adsorbed or released while the material remains at a relatively constant temperature.
This thermal energy storage phenomenon is known as the latent heat of fusion. Compared to sensible heat storage materials that store energy as a function of an increase in temperature when a material reaches its latent heat of fusion it stores orders of magnitude more energy per unit of volume.
Our bioPCM™ product is a Phase Change Material designed for use in buildings. BioPCM is a non-toxic nutritionally inert chemical known as a "fatty ester" that is derived from rapidly renewable plants and nano engineered for optimal thermal energy storage performance in building applications. BioPCM comes in a variety of thermal energy storage capacities "M-Value" and melting temperatures "Q-value".
Buildings with bioPCM passively maintain comfortable conditions, greatly reducing energy consumption and peak cooling loads. Simply put, if you desire a better building, you may want to consider bioPCM.
When air temperatures become too hot bioPCM melts to cool the building, and when air temperatures get too cold bioPCM freezes to warm the building. BioPCMat installed in walls and ceilings reduce radiant temperature fluctuation. The comfort temperature, known as "operative temperature" can be calculated by the average of mean air temperatures and mean radiant temperatures. The calumniation of effects on these factors produces more comfortable buildings when bioPCM is used.
Buildings peak cooling load is typically designed to meet the greater of peak dry-bulb and wet bulb temperatures for all but a range of 1, 2 and 4% of the total hours of the year. When bioPCM is integrated into the HVAC system design; system capacity can generally be reduced by substantial percentages of design loads without bioPCM. BioPCM provides the mechanical engineer innovative options for reducing loads at their source reducing air handling unit, duct and plant capacity and assorted costs.
BioPCM stabilizes temperatures and thereby reduces the demand for energy by reducing peaks and smoothing the deadband between cooling requirements and heating requirements. This results in both a shift of time of peak and lower peak. This shift increases the efficiency of HVAC equipment and at times reduces the cost of delivered energy for the utility, resulting in lower costs for the consumer.
Maintenance of balding infrastructure is typically combined with energy costs and paid for in operational budgets. The lower these costs are the more valuable a building is generally appraised at, dependent on externalizes and project specifics these benefits can at times out-value the costs of low energy design elements such as bioPCM from day one.