176 Light weight conformal pressure tanks

Fluids in pressure tanks, ranging from aircraft fuel to liquid nitrogen cryogen for airborne infrared telescopes, must be maintained at constant and uniform temperature, uniform pressure, and - in moving systems - must be restrained from 'sloshing' because this generates pressure gradients. Figure 17.9 shows the design of a tank which exploits ERG DUOCEL® open-celled aluminum foam to achieve this. The foam has a low density, occupying only 10% of the volume of the tank, but it limits fluid motion. The high thermal conductivity of the cell edges maintains the fluid at a constant temperature, important for jet fuel.*

Figure 17.9 DUOCEL® foamed aluminum used as the structural core, heat exchanger and anti-slosh baffle in a lightweight conformal tank. (Courtesy of ERG)
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