Ng genset

Types of NG Genset

Natural gas generators produce electricity using NG as a fuel. It comes as an efficient, flexible, and cleaner power source and is widely used in home-based and industrial settings. There are numerous types of NG generators on the market, each designed for multiple applications of varying settings such as commercial, residential, and industrial, and here are some of the common ones:

Stationary NG Gensets

These are permanently installed generators that act as standby or primary power sources for residential, commercial, or industrial facilities. These gensets automatically provide electricity during power outages.

Portable NG Gensets

These generators are smaller in size and can be easily moved from one place to another. They use natural gas as a fuel source and are ideal for temporary power needs, construction sites, outdoor events, and recreational activities. Even though portable NG gensets cannot be compared to portable diesel generators when it comes to power output, they can provide enough voltage for low-power electrical appliances like phones, tablets, and even laptops.

Prime power NG Gensets

These generators are used in remote areas where there is no access to a utility power grid. They provide an uninterrupted energy source, especially for mines, oil and gas fields, and remote communities. These generators are meant for constant use, so they are built more solid than occasional standby power generators.

Peak shaving NG Gensets

A peak shaving generator helps reduce the peak energy demand on the electrical grid. With this kind of generator, excess power will be produced during off-peak times and then stored. When peak time arrives, the stored energy will be used to meet the power needs and, at the same time, prevent overloading the system.

Bipolar Transistor (BPT) NG Gensets

These are small, highly efficient natural gas-powered generators. They generate DC electricity directly from the fuel by a revolutionary electrochemical process that is clean, quiet, and energy-efficient compared to traditional methods.

Reciprocating engine NG gensets

This is an electric generator that uses a reciprocating engine fueled by natural gas to produce electricity. It is of two types: spark ignition and compression ignition. Spark ignition reciprocating generators work by an electric motor that uses a gas mixture of air and fuel to ignite the spark plug within the engine, hence producing electricity. On the other hand, compression ignition reciprocating engines have higher efficiencies, especially on a larger scale.

Industrial Applications of NG Genset

Natural gas generators are commonly used by many because of their efficiency and ability to reduce electrical peak shaving and provide backup power. Below are industrial applications of an NG generator:

Industrial Backup Power

This generator acts as a backup power source for industries and commercial enterprises where an uninterrupted power supply is critical for business continuity.

Combined Heat and Power Systems (CHP)

CHP systems generate both electricity and useful heat simultaneously from natural gas, achieving higher energy efficiency for industrial processes, buildings, and large facilities.

Remote and Off-Grid Power

These generators provide the only source of electricity in remote areas without access to power grids. Natural gas is often available even in the most remote areas of the world.

Peak Shaving and Load Balancing

This generator helps manage the electrical load during peak times. The utility grid is prevented from overloading by using peak shaving systems. Excess power is produced during off-peak times and then stored for use when peak time comes. This balanced the load within the industrial power system and helped reduce operational costs associated with high-demand electricity tariffs.

Water and Wastewater Treatment Facilities

CHP systems, which use natural gas and biogas, are frequently utilized in water and wastewater treatment plants. The plants' electricity needs during treatment are met with this generator, which offers cost-effective energy and reduces emissions.

Mining Operations

Portable natural gas generators are used in mining locations that are off-grid and require power for ventilation, lighting, and equipment. Gensets miners use provide a safer working area and more efficient mining operations.

Emergency Power for Critical Infrastructure

Natural gas generators are utilized as an emergency power source for hospitals, data centers, telecommunications, and other critical infrastructure that needs constant power to avoid outages.

Manufacturing Facilities

In manufacturing facilities, NG gensets are coupled with CHP to improve energy efficiency. In some industries, the heat generated is also used in production processes. This allows industries to balance energy costs and ensure a continuous power supply for production processes.

Product Specifications and Features of NG Genset

Technical specifications

• Rated voltage: The average voltage produced by any generator is 230/400Volts.
• Frequency: The frequency of the NG genset is the same as any other electrical equipment, which is 50Hz.
• Rated power: NG generators are available in a wide range of power outputs, from small portable ones producing about 5kilowatts all the way to about 2megawatts for larger industrial NG generators.

• The prime rated power is about 1400-1540Watts.

  The emergency rated power is about 1540-1680Watts.

  The power factor is 0.8(standard).

• Engine speed: Most gensets have an engine speed of 1500-3000rpm.

How to install

Before installation, there are some precautions to take to avoid explosions when installing the NG generator.

• Proper grounding: Proper grounding of the NG generator will ensure any excess electrical energy or current will be directed harmlessly into the ground.
• Ensure the is no accumulation of gas in any place or room and that the working space is clean and ventilated.
• Avoid using any liquids, flames, or sparks in the vicinity of an NG generator.
• Always wear safety glasses and gloves when handling tools and generator parts.
• The fuel supply system should be isolated before any work or maintenance, and the natural gas shut-off valve should be turned on.
• Always check the NG pipe for any sign of damage or wear, such as cracks, bent fittings, or joint leaks.
• When opening electrical covers, be careful not to touch live parts.
• Live electrical work should be undertaken by a qualified person only.

How to use

Using an NG generator is, to an extent, the same as using any other type of electrical appliance. After setting it up, the genset needs to be connected to the load or the items that need power. This will be done through a transfer switch. The transfer switch will be connected to the utility grid on one end and the genset on the other end. After connection, the switch needs to be set to NG to allow the generator to provide power. Finally, the fuel supply needs to be ensured the right NG is connected to maintain the generator.

Maintenance and repair

Natural gas generators require less maintenance compared to diesel or gasoline generators because NG is a cleaner fuel, which means fewer deposits and less wear on the engine parts. However, regular maintenance is important to keep the generator running smoothly. Here are some key maintenance tasks:

• Check the generator oil level regularly and top up if necessary and replace the oil according to the manufacturer's schedule.
• Always inspect the NG fuel system for leaks, damage, or corrosion signs before each use and ensure all connections are tight.
• Check and clean or replace the air filter every few months or according to the manufacturer's instructions.
• Check the spark plugs at least twice a year and change them if there are signs of wear and tear.
• The battery's strength and corrosion should be monitored and cleaned, and a weaker battery should be replaced.
• Run the generator occasionally even don't need it to ensure it will work when it's really needed and to keep all the parts moving and lubricated.
• Look at all the electrical connections and wiring and ensure there is no wear and tear.

Quality and Safety Considerations of NG Genset

Natural gas generators produce fewer emissions than diesel, gasoline, or coal-powered generators, making them a cleaner alternative. However, since natural gas is a flammable substance, safety measures should be taken to prevent leaks or explosions. Below are key quality and safety measures on NG generators:

Quality Considerations

• Emissions: Natural gas produces fewer emissions of carbon dioxide, nitrogen oxides, and particulate matter than coal and diesel, making it a cleaner and safer generator fuel to use.
• Fuel Efficiency: Compared to other fuels, NG is more affordable and available. This makes natural gas generators cheaper to operate long-term.
• Noise levels: Because natural gas is a cleaner fuel, less combustion means lower noise levels and less irritating to the ears, thus making it more environmentally friendly.
• Intended use: Quality considerations include the intended use of the generator. Is it for home, industrial, or commercial use? This is because generators used for commercial and industrial purposes have higher power outputs than those used for residential purposes.

Safety Considerations

• Gas leaks: The most serious risk of using an NG generator is gas leakage, and any tiny leaks can lead to explosions. To minimize that risk, don't store anything flammable around the generator, ensure the area around the generator is well ventilated, and regularly inspect the electrical wiring for wear and tear.
• Proper installation: One of the important safety precautions is proper installation. An NG generator should be installed by a professional and according to the manufacturer's guidelines, which include proper grounding and avoiding close proximity to flammable items.
• The natural gas shut-off valve should be turned on any time maintenance or work is to be done on the generator.
• Always keep goggles and safety gloves on when handling the generator, and ensure the workspace is clean and free of clutter.

Q&A

Q1: What is an NG generator?

A1: An NG generator, or natural gas generator, is a device that uses natural gas to produce electricity. It is a cleaner, quieter, and more affordable power source compared to other fuels like diesel or gasoline.

Q2: What are the benefits of using an NG generator?

A2: Using an NG generator is more convenient because natural gas is available even in remote areas without access to power grids. It operates smoothly and requires less maintenance than generators that use other fuel types.

Q3: How long will an NG generator last?

A3: A properly maintained natural gas generator can last between 30 to 40 years. Environmental factors and how often the generator is used affect its lifespan.

Q4: Can an NG generator be used during the rainy season?

A4: Yes, an NG generator can function properly even during the rainy season. However, steps should be taken to protect it from heavy rain or flooding, as water can damage electrical components. Proper drainage around the generator area helps prevent water accumulation.

Q5: How is an NG generator maintained?

A5: Regular maintenance is important to ensure the generator operates efficiently for many years. This includes checking the electrical parts, fuel system, air filter, battery, and spark plugs. Cleaning the generator and inspecting for rust or corrosion also helps with long-term care.