A gas generator set is a modern, environmentally friendly power generation unit designed to meet global environmental protection requirements and adapt to the evolving energy market. Gas generator sets are primarily divided into two types:
Combined Cycle Gas Turbines – Relatively high-power units used mainly in large and medium-sized power stations.
Gas Internal Combustion Engines – Lower-power units used in small distributed power stations.
Gas generator sets serve as a green alternative to oil- and coal-fired generators. They offer energy-saving, low-pollution operation and combine simplicity, reliability, and stable output voltage and frequency.
The gas generator set connects the engine and generator coaxially and mounts them on a chassis. Key components include:
Engine Components: Muffler, governor, belt-driven accessories, and a recoil starter.
Fuel Source: Natural gas, liquefied petroleum gas, or biogas is delivered through a gas channel into the engine.
Generator Components: Voltage regulator connected to generator output.
Filtration and Pressure Stabilization: A filter device protects engine valves, with filter apertures ≤ 1.5 mm. Gas pressure stabilizers perform pressure regulation, stabilization, filtration, metering, odorization, and distribution. Outlet air pressure fluctuations must remain within ±5% across the combustion range.
The system ensures safe, reliable operation while reducing environmental pollution compared with diesel generator sets.
Natural gas provides several operational and economic advantages compared to diesel:
Lower and Stable Pricing – Less volatile than diesel, allowing accurate budgeting and reduced exposure to price spikes.
Elimination of Fuel Delivery and Storage Costs – Continuous pipeline delivery removes the need for on-site storage tanks and fuel replenishment logistics.
No Fuel Degradation – Unlike diesel, natural gas does not degrade, eliminating costs associated with fuel polishing or quality testing (per NFPA 110).
Reduced Maintenance – Cleaner combustion leads to less carbon buildup and wear, extending service intervals and lowering labor and consumable costs.
Natural gas burns cleaner than diesel, producing fewer particulate emissions and lower carbon accumulation.
Compliance with Tier 4 emissions standards can be achieved using a simple three-way catalyst, avoiding costly diesel exhaust after-treatment systems.
Natural gas generators meet stringent environmental requirements, making them suitable for demand response programs and areas with strict emissions limits.
While the initial capital cost of natural gas generators can exceed diesel units of similar capacity, overall project costs are often lower due to:
Reduced infrastructure and on-site fuel storage requirements.
Simplified fuel logistics via pipeline connections.
Lower ongoing operational and maintenance expenses.
Gas generator sets are a green, reliable, and economically advantageous alternative to diesel and coal-fired generators. They offer:
Environmentally friendly operation with reduced pollution.
Stable voltage and frequency output.
Lower maintenance requirements and operational costs.
Flexible application in distributed power stations, emergency power, and peak shaving.
By combining clean fuel, robust engine design, and advanced control systems, gas generator sets represent a modern solution for sustainable power generation in both stationary and distributed energy applications.
