Variloft - Adaptive Thermal Insulation

Performance

A finite element analysis was conducted to estimate the thickness increase of a fabric made of this fiber as well as to determine evaluate concept feasibility. The Non-Woven Batting model incorporated eight fiber layers per batting with fibers of each layer shifted along their lengths to simulate the random nature of a non-woven batting. Figure 2 shows the result of this analysis for the 15°C and -45°C test temperatures.

Figure 2: Left, low loft configuration. Right, high loft configuration.

The thermal response of a batting made from VARILOFT fibers was modeled to estimate performance with variable ambient temperature. This model comprised 23 distinct layers with linearly varying thickness and a differential CTE of 250 µm/m/°C. Figure 3 shows the results of the matlab simulation.

Thermal Performance of VARILOFT batting in comparison with commercial products.

For more information:

Please email Veronica Hunt (Products), or call: 781-306-0609 x294