A、First, clarify the core purpose of the unit: to distinguish between commonly used power sources and backup emergency power sources
The first step in selecting a Generator set is to define the power supply attributes. The two operating conditions have completely different requirements for engine durability, load design, and overall configuration. Mismatching can significantly shorten equipment life and increase operation and maintenance costs.
1. Common power supply unit (main power supply, no mains power support)
Mines, field construction sites, remote mining areas, islands, oil and gas fields, and off grid industrial parks do not have stable mains electricity, and the units operate continuously for 24 hours, with an annual operating time of over 6000 hours. The selection must use FARIZON long endurance power generation dedicated engines, calculate the load according to the rated continuous power COP, maintain the daily load in the range of 70%~90%, and reserve 20% power redundancy; Enhanced cooling and lubrication system for the engine, designed with a long oil change cycle, suitable for long-term full load stable output, prioritizing diesel and high displacement methanol models.
2. Backup emergency unit (mainly powered by mains electricity, starting in case of power outage)
Factories, hospitals, data centers, shopping malls, and communication base stations only provide short-term power supply during power outages, with an annual operating time of less than 500 hours and a single continuous operation not exceeding 24 hours. Based on the selection criteria of backup power ESP, short-term 10% overload is allowed; Equipped with ATS fully automatic dual power switching system as standard, it can start quickly in 15 seconds; The requirements for continuous durability are lower, but the starting reliability and low-temperature ignition performance must meet the standards, and both gas and small diesel units can be adapted.
B、 Selection by Fuel Route: Core Differences of Diesel/natural gas/Methanol Generator Sets
FARIZON covers three major power generation sources: diesel, CNG/LNG natural gas, and methanol. Fuel determines power generation costs, emissions, environmental adaptability, and energy replenishment convenience. Models are selected based on local fuel supply conditions.
1. Diesel Generator set (industrial mainstream)
Adaptation scenarios: field mines, infrastructure construction sites, remote areas without gas facilities, mobile trailer power stations.
Advantages: Wide power coverage (20kW~2000kW), sufficient torque reserve, suitable for high sulfur and low-quality fuel; Convenient refueling and comprehensive global oil supply; Heavy load resistance, stable output at high and low temperatures, and high altitudes; Accessories are widely available worldwide and there are many repair outlets.
Shortcoming: Exhaust gas contains particulate matter, and enclosed areas in urban areas need to be equipped with exhaust and noise reduction devices; The unit cost of electricity generation is higher than that of gas and methanol units.
Compatible models: FARIZON 4L~16L full range diesel generator engines, with enhanced turbocharging and no power reduction at high altitudes.
2. Natural Gas Generator set (CNG/LNG, green fixed plant area)
Adaptation scenarios: factories, farms, distributed power stations, and commercial backup power sources in urban areas with pipeline natural gas, biogas, and coalbed methane supporting facilities.
Advantages: Clean combustion without particles, low noise, suitable for indoor computer room layout; Fuel costs are 20% to 30% lower than diesel; No DPF or urea system, easy maintenance.
Shortcoming: Relying on fixed gas stations/pipelines, unable to use in outdoor gas supply scenarios; LNG storage tanks in low-temperature environments are prone to frost formation, and start-up auxiliary devices are essential.
Compatible models: FARIZON 7L~13L gas specific power generation engine, suitable for various combustible exhaust gas recovery power generation.
3. Methanol generator set (low-carbon versatile type, preferred for overseas mines/oil fields)
Adaptation scenarios: environmentally controlled mining areas, chemical industrial parks, overseas low-carbon projects, oil field associated fuel supporting facilities, urban silent backup power stations.
Advantages: Liquid fuel storage and transportation are the same as diesel, without the need for high-pressure gas tanks; Emissions are much better than diesel, NOx、 Significant reduction of particulate matter, easily passing strict global emission regulations; The cost of electricity per kilowatt hour is reduced by 35% to 45% compared to diesel; The alcohol resistant and anti-corrosion oil circuit design ensures stable operation at high altitudes and low temperatures.
Shortcoming: Remote areas without methanol injection facilities are not suitable for long-term use.
Compatible models: FARIZON 9L/13L/15L methanol power generation dedicated power, equipped with low-temperature preheating and three-stage fuel filtration system as standard.
C、 Accurately calculate the required power to avoid small horses pulling large vehicles or power waste
1. Count all electricity loads and distinguish load types
The starting impact of resistive loads (lighting, heaters) is small; The starting current of inductive loads such as motors, water pumps, and welding machines is 2-3 times the rated current, and a starting margin must be reserved when calculating the total power; Precision instruments and server rooms require low harmonic voltage stabilization configuration.
Calculation formula reference: Total calculated power=Total rated power of all devices x 1.2~1.3 (startup redundancy).
2. Power reduction compensation for environmental working conditions
When the altitude is greater than 1000 meters, the engine power attenuation is about 10% for every 1000m increase. High altitude mining areas and high-altitude projects need to increase the power by one level or choose FARIZON high-altitude turbocharged customized models;
Environmental temperature>35 ℃, poor heat dissipation in enclosed computer rooms, synchronous reduction of output power, need to increase the heat dissipation water tank and optimize the air duct;
In coastal areas with high salt spray and frequent dust in mining areas, an upgraded anti-corrosion and dustproof engine is selected to avoid short-term corrosion and leakage.
3. Multi unit parallel expansion requirements
Large industrial parks and megawatt level power stations require multiple units to be connected in parallel. Priority should be given to FARIZON power generation with standardized electronic control and support for parallel communication. There is no need to replace the entire control system for later expansion.
D、 Customized engine configuration tailored to match the usage environment
1. High temperature and high humidity/coastal salt spray environment
The intake system of the entire machine is equipped with multi-stage dust filters, and cathodic anti-corrosion coating is applied to the pipelines, cylinder body, and frame; The electrical cabin is sealed and moisture-proof, and both methanol/diesel models can be customized for salt spray prevention, suitable for supporting power stations in Southeast Asia and coastal ports.
2. High cold and low-temperature areas (-15 ℃~-35 ℃)
Standard fuel preheater, oil heating, and large capacity low-temperature battery; The methanol model is equipped with a dedicated atomization preheating system, and the diesel model is equipped with a cold start auxiliary device. The ignition is successful at sub zero temperatures without any difficulty in starting.
3. Mining, explosion-proof, and high dust working conditions
Increase the capacity of the air filter and extend the replacement cycle of the filter element; Optional explosion-proof electrical control and isolation device, suitable for auxiliary power supply in oil and gas fields and coal mines underground; Heavy duty strengthened crankshaft and connecting rod, which are not easily worn out during long-term high load operation.
4. Noise control scenarios in urban areas, hospitals, and schools
Equipped with a silent enclosure and multi-stage mufflers, with priority given to natural gas and methanol units, the operating noise is as low as 65-75dB, meeting the urban noise limit standards.
E、 Distinguish the structural form of the unit, match installation and transition requirements
1.Open frame fixed unit: installed in permanent machine rooms in factories and parks, with low procurement costs and good heat dissipation, suitable for long-term fixed main power supply;
2.Silent box type unit: backup power supply for urban areas, hospitals, and data centers, noise reduction and dust prevention, occupying a regular area;
3.Mobile trailer unit: construction site, field rescue, temporary projects, chassis with shock absorption, large capacity fuel tank, can be transferred at any time, priority for diesel models;
4.Containerized high-power power station: overseas large-scale mines, overseas project general contracting, integrated heat dissipation, control, noise reduction, convenient sea transportation and hoisting, suitable for high-power FARIZON diesel/methanol units.
F、 Make the final selection decision based on the full lifecycle cost
1.Short term temporary power supply (construction site within 1 year): Priority is given to economical diesel units, with low initial procurement investment and strong resale and circulation after use;
2.Medium to long-term fixed factory area (more than 3 years): natural gas units with gas pipelines; There is a stable supply of methanol, and methanol units are selected in environmentally limited emission areas. The fuel price difference will be recovered from the equipment premium within 2-3 years;
3.Overseas export projects: Africa and Central Asia lack complete gas matching and diesel selection; The environmental control regions in the Middle East and Southeast Asia mainly promote methanol units, balancing low-carbon and convenient storage and transportation;
4.Comparison of maintenance costs: Gas and methanol engines have mild combustion, less cylinder wear, longer oil change cycles, and an average annual maintenance cost that is about 25% lower than Diesel Engines; Diesel Engine components have the strongest universality, and maintenance and supply in remote areas are faster.
G、 Standardized selection scheme for different scenarios
1.Off grid main power supply for field mines and infrastructure: FARIZON 13L~16L large displacement diesel generator set, high-altitude turbocharged heavy-duty version;
2.Pipeline natural gas plant and breeding farm biogas power generation: 7L~13L CNG/LNG natural gas power generation engine;
3.Environmental control in urban areas, overseas low-carbon oil fields, and chemical industrial parks: 9L/13L methanol generator set, customized for silent and anti-corrosion;
4.Emergency backup for hospitals, data centers, and shopping malls: small and medium power silent diesel or natural gas units, equipped with ATS automatic switching;
5.High altitude and high-altitude field engineering power station: High altitude enhanced diesel/methanol model, complete configuration for low-temperature start-up;
6.Mobile emergency rescue, short-term temporary power supply for construction sites: trailer type small and medium-sized diesel generator sets.
Summary
The core logic for selecting a generator set equipped with FARIZON engine is to "first determine the purpose (common/standby) → select the power route according to local fuel → accurately calculate the power and reserve environmental attenuation margin → customize special configurations to match the site environment → calculate the full lifecycle cost based on the operation cycle". Without stable gas supply and diesel fuel for outdoor mobile scenarios; Having a fixed gas source and selecting natural gas for long-term fixed plant areas in urban areas; Environmental emission restrictions, pursuit of low power generation costs, and preferred methanol power generation for overseas low-carbon projects. FARIZON's full range of power generation engines have undergone rigorous testing for three highs (high altitude, high temperature, and high cold), supporting multi voltage, multi frequency, CE international certification customization, and supporting global technical services and spare parts supply, providing stable and long-term power generation solutions for mines, factories, and overseas projects.
