ENRG BlanketTM Specification
ENRG BlanketTM works in the daytime by absorbing heat from solar and internal gains and then releasing that heat during the night thus reducing cooling and heating loads along with energy consumption, while enhancing comfort in the process.
ENRG BlanketTM products are stocked by the following categories:
- Q-Values [peak melting temperatures in degrees Celsius]: 23°C, 25°C and 27°C
- M-Values [Btu thermal energy storage capacity per sq. ft. of product] of M27, M51
- Fire Ratings of Class A or C
- Perm Ratings of Class 1, 2 or 3
- Lengths of 48 inches (1.22m) or 96 inches (2.44m)
- Width All ENRG BlanketsTM are 16.67 or 24 inches wide
Class A fire rating is only available with a class 1 perm rating. For general orders M27/Q25/Class C fire rating/Class 2 perm rating is the most common choice. It is also possible to manufacture other temperature [Q-Value] or loading [M-Value] products to meet custom demand. For more information please contact us as our representatives will work with prospective clients to ensure the optimal material is chosen for a project.
Designing With ENRG BlanketTM
Designing with ENRG BlanketTM can be as simple as placing the material above drop ceilings, or fastening to studs internally adjacent to insulation. The result will be reduced HVAC loads, energy savings and comfort enhancement. For designers who seek to maximize the long term benefits and minimize initial costs; the value engineering approach will be most effective.
Using this approach BioPCMTM will be placed in locations with maximum radiant, conductive and convective energy movement. Roof or ceilings are generally the first area of installation due to solar radiation and internal air stratification driven by convection. Secondly, we recommend placement in the south west and east walls, with preference to walls that experience the most solar gain.
How to determine how much BioPCMTM to place in a building?
- Determine cooling load. (using loads software or a delta T over area calculation)
- As a rule of thumb, specify the total BioPCMTM capacity to match the Btu/h cooling sizing for the space. (More PCM than the design cooling load is not typically required but can be used to provide additional benefits by providing additional Btu/hr thermal energy storage and peak demand time lag)
- Evaluate external surfaces for exposure to solar gains and internal surfaces for exposure to internal gains.
Divide the BioPCMTM capacity among surfaces placing ENRG BlanketsTM of highest capacity within the surfaces of highest exposure to heat gains.
- The idea is to place the PCM in locations that maximize radiant, conductive and convective energy exchange, so the roof or ceilings should be first due to solar radiation and internal air stratification driven by convection, the next best placement is south west and east walls. (northern hemisphere)
For instance, take a space that has a cooling load of 83,000 kBtu/h and a wall area of 540 square feet per orientation and a roof area of 2200 square feet. The total Btu of BioPCMTM would be designed to match the load, so the designer would place M51 under the roof, M27 on south and west walls with no PCM for the north or east walls. Then, use the peak heating and cooling points from BioPCMTM DSC curve as a guide for heating and cooling set point, setback and setup strategies. Detailed modeling can be used to further optimize the amount and placement of BioPCMTM, however, the above guidelines provide a useful starting point.
If you would like assistance in choosing the product that best fits your application please contact our technical support staff.