Diesel Fuel Day Tank Design

All pryco day tanks are fabricated of heavy gauge steel by certified welders.

Diesel fuel day tank design. The day tank is also used to ensure efficient fuel flow to the engine by eliminating any externally induced pressure head generated by the location of the bulk tank or from the bulk storage. Per nfpa this overflow return line is to be routed back to the source tank or to a collection system. For preliminary sizing of the fuel storage tanks consider the following rule of thumb. The diesel needed to power these generators requires proper storage in tanks often located onsite.

2 fuel oil are needed per 100 kw of generator rating see fuel oil design cheat sheet. Each tank is tested to 5 psi. Though the initial rise in day tank temperatures is modest the effects are cumulative and. Day tank pryco day tanks now come in the new 34 series pictured to the right and the original pryco tank design.

The 100 fuel consumption multiplied by 24 a 24 hour tank. Fuel water and holding in the june 01 issue of pmm included a discussion on fuel tank materials. What you need to know about storage tank standards ul 142 ul 2085. Day tank brochure provides an overview of day tanks.

7 gal hour of no. Nfpa 37 6 5 4 6 5 4 1 6 5 4 2 requires that any fuel tank filled by a pump be equipped with an overflow return line. When selecting a fuel tank size keep in mind that generators don t normally run at 100 load so the actual run time will likely be greater than 24 hours. As mentioned the height of the fuel tank depends on desired run time.

With above ground fuel storage tanks and above grade day tanks how is overflow fuel return ensured. Engineering guides design guide specifications cfs01 master spec open 4 6 20 cfs11 aboveground fire rated tanks 4 6 20 cfs12 aboveground non fire rated tanks 4 6 20 cfs18 tank gauging and leak monitoring 4 6 20 cfs21 fuel. At that time stainless steel had not been approved by abyc for use as a diesel fuel tank material other than in 20 gallon cylindrical designs with domed heads an impractical design at best. By design this unused fuel absorbs heat and in most cases this heated fuel is re turned to the day tank the temperature differential between the generator pump inlet and return to day tank may be less than 15 f.

Related downloads brochures cfs overview brochure provides a complete review of all the components that make up a system. The fuel consumption rate gph multiplied by the desired runtime hours establishes the usable fuel requirement gallons.