Considering the inertia and kinetic energy of fuel in a plastic tank being transported by a vehicle, environmental stress cracking is a definite potential.
The craftsman generally creates a mockup to determine the accurate size and shape of the tank, usually out of foam board.
Next, design issues that affect the structure of the tank are addressed - such as where the outlet, drain, fluid level indicator, seams, and baffles go.
After the sheet is cut to the shapes needed, various pieces are bent to create the basic shell and/or ends and baffles for the tank.
These flanged holes serve two purposes, they reduce the weight of the tank while adding strength to the baffles.
Toward the end of construction, openings are added for the filler neck, fuel pickup, drain, and fuel-level sending unit.
A racing fuel cell has a rigid outer shell and flexible inner lining to minimize the potential for punctures in the event of a collision or other mishap resulting in serious damage to the vehicle.
The technique was developed to reduce fuel vapor emissions in response to Partial Zero-Emission Vehicle (PZEV) requirements.
Several systems, such as BattleJacket and rubber bladders, have been developed and deployed for use in protecting (from explosion caused by enemy fire) the fuel tanks of military vehicles in conflict zones.
[13] For stationary fuel tanks, an economical way to protect them from hazards like extremes of temperature and vehicle crashes is to bury them.