How to Choose Between External Tanks and Base Tanks for Diesel Generator Sets?

The fuel tank of a diesel generator set is not just a container for storing diesel, it also plays multiple roles, such as dissipating heat, separating air bubbles from the fuel, and settling impurities. For users, choosing between an external tank and a base tank often becomes a difficult decision.

 The selection of a fuel tank for a diesel generator set should be based on a comprehensive evaluation of the unit type, usage scenario, and maintenance requirements: open-type diesel gensets are recommended to use external tanks, while silent type units can opt for base tanks. For long-term use, priority should be given to maintenance convenience.

 External fuel tanks: A practical choice for open type diesel generators

Core advantages: Suitable for open-frame diesel generator sets, offering flexible installation without being constrained by the genset's structure. They can be quickly adapted to diesel generators of different power ratings and models. As the tank is independent of the genset, it facilitates regular cleaning of oil sludge and impurities, preventing damage to the fuel system caused by diesel sediment and extending the unit's lifespan. External tanks have a simple structure, lower cost, and can be selected in various capacities based on needs, reducing initial investment costs.

Applicable Scenarios: Temporary power supply or backup power for sites such as construction sites, exhibitions, and emergency rescue operations, where rapid deployment is required and usage frequency is low. Ideal for situations with high maintenance convenience requirements, where users need to regularly clean the tank to ensure fuel cleanliness and prevent fuel system blockages.

Base fuel tanks: An integrated solution for silent type generator sets

Core advantages: Compact structure with an integrated design that saves space in the generator room, making it suitable for locations with limited floor area. The strong overall design meets the requirements for concealment and aesthetics in silent type diesel generator sets. Increases the contact area between the genset and the ground, enhancing load-bearing capacity and reducing vibration and noise.

Potential risks: Prolonged settling of diesel can lead to impurity formation. If not cleaned regularly, these impurities may clog the fuel system or damage the engine. Some base tanks are made of organic synthetic plastics, which may react chemically with diesel, accelerating sediment deposition.

Applicable scenarios: Suitable for silenced-type diesel generating sets in environments with strict noise control requirements, such as hospitals, schools, and office buildings. For long-term fixed use, users must commit to regular maintenance and possess the technical capability to clean the tank.

Some key factors when choosing fuel tanks for diesel generator sets

Generator Type: Open-frame diesel generators should prioritize external fuel tanks, while silent type units may consider base tanks.

Usage frequency: For temporary or low-frequency use, external tanks are recommended. For high-frequency or long-term use, maintenance must be intensified, and base fuel tanks should be chosen with caution.

Maintenance capability: Users should assess whether their technical team can regularly clean base fuel tanks. If capability is lacking, external tanks are recommended.

Space and cost: When generator room space is limited and the budget is sufficient, base fuel tanks can save space. Otherwise, external tanks are more cost-effective and flexible.

Both external tanks and base tanks for diesel generator sets have their own advantages as well as certain drawbacks. Users should select the most suitable diesel generator sets based on their actual needs and site conditions. Dingbo Power reminds all users that regardless of the tank type chosen, it is essential to regularly clean the fuel tank to ensure the normal operation of the diesel generator set.