Abstract: This article deeply analyzes why diesel generators are preferred over gas generators in industrial settings, and compares them from core dimensions such as energy efficiency, maintenance costs, safety, and technological maturity. It reveals the irreplaceability of diesel generators in the field of industrial backup power, helps enterprises make scientific decisions, and ensures production stability.
1、 Introduction: The core value of industrial backup power supply
In industrial production, power outages can lead to equipment shutdown, production stagnation, and even significant economic losses. As the 'last line of defense', the choice of backup power system directly affects the operational stability of the enterprise. Diesel generators and gas generators are the two mainstream solutions, but why are diesel generators more favored by industrial users? This article will analyze from the dimensions of technology, cost, and security, providing decision-making references for enterprises.
1. Energy efficiency: high energy density and fuel economy
Data support: The energy density of diesel is about 30% higher than that of gas, and it can store more energy in the same volume.
Advantages:
Smaller in size and lighter in weight, suitable for industrial scenes with limited space.
Higher fuel efficiency and a 15% -20% reduction in overall operating costs.
Diesel has a shelf life of up to 12 months (with the addition of stabilizers), reducing the risk of storage loss.
2. Maintenance cost: low failure rate and simplified design
Structural advantage: Diesel engines have no ignition system, so there is no need to replace vulnerable parts such as spark plugs and ignition coils, reducing maintenance frequency.
Durability: Made of high-strength materials, it can withstand high compression ratios and harsh working conditions, with an average service life 20% -30% longer than gas generators.
3. Safety: Fuel characteristics and risk control
Low ignition risk: Diesel requires high temperature and pressure to ignite, which is much lower than the flammability of gas and reduces the probability of fire.
Storage and transportation: Not easily volatile, low risk of leakage, can be stored at room temperature, and transportation costs are lower.
4. Technological maturity and reliability
Century long technological accumulation: Key components such as turbochargers and fuel injection systems are highly mature, with a lower failure rate than gas generators.
Quick response: The startup time only takes a few seconds to tens of seconds, meeting emergency power supply needs.
5. Power and adaptability: Full scene coverage
Wide power range: covering 5kW-3000kW, meeting the full power demand from small factories to large industrial parks.
Environmental adaptability: It can operate stably in harsh environments such as extreme temperatures ranging from -40 ℃ to 50 ℃ and high altitudes.
6. Environmental performance: emission control and compliance
Purification technology: equipped with particulate filter (DPF), selective catalytic reduction (SCR) and other systems, meeting the strict emission standards of EU Stage V and China's non road country IV.
Tail gas toxicity: The main combustion products are CO ₂ and H ₂ O, with lower toxicity than incompletely burned hydrocarbons (UHC) produced by gas combustion.
3、 Limitations of gas generators
1. Dependence on infrastructure
It is difficult to deploy in remote areas or areas with weak infrastructure due to the need to connect natural gas pipelines or liquid natural gas (LNG) supply.
2. High maintenance complexity
Gas turbines have extremely high requirements for air quality and fuel purity, requiring regular cleaning and replacement of filters, resulting in significantly higher maintenance costs than diesel generators.
4、 Conclusion: Irreplaceability of diesel generators
Diesel generators have become the preferred industrial backup power source due to their comprehensive advantages such as energy efficiency, maintenance costs, safety, and technological maturity. Despite the enormous potential of gas generators in the clean energy sector, they are limited by infrastructure, maintenance costs, and safety, making it difficult to shake the market position of diesel generators in the short term.
5、 Future prospects: Hybrid power and hydrogen energy technology
With the maturity of innovative solutions such as hybrid technology and hydrogen fuel cells, the industrial backup power supply landscape may undergo a transformation. But currently, diesel generators are still the "anchor" to ensure the stability of industrial production.
