Biogas flaring is a crucial process in waste management, landfill operations, and industrial gas treatment. By burning off excess methane and other volatile gases, flares help mitigate environmental hazards, ensure regulatory compliance, and improve site safety.
At Parnel Biogas, our utility flares are used in a wide variety of applications, from landfills and wastewater treatment facilities to feedlots and coal mines. Parnel flares are also used to reduce emissions at Renewable Natural Gas (RNG) facilities and/or where digesters are in use.
However, not all flares are created equal – each comes with its advantages and limitations. In this blog, we’ll explore what flare types support various applications.
Types of Flares
Utility Flares (Candlestick Flares)
Utility flares, often referred to as "candlestick flares," are open-air systems that burn excess biogas in a visible flame. These are commonly used in landfills, wastewater treatment plants, and industrial sites where a simple, cost-effective flaring solution is needed.
Pros:
- Cost-effective and easy to install
- Simple operation with minimal maintenance
- Ideal for remote or industrial sites where visibility is not a concern
Cons:
- Visible flame, which may not be acceptable in certain locations
Enclosed Flares
Enclosed flares provide a more controlled combustion process by containing the flame within a combustion chamber. This design improves safety, reduces noise, and meets stricter emissions regulations.
Pros:
- Concealed flame reduces visibility concerns
- Higher combustion efficiency and lower emissions
- Suitable for populated or environmentally sensitive areas
Cons:
- Higher upfront costs than utility flares
- Requires more space and maintenance
Shielded / Shrouded Flares
Shielded or shrouded flares offer a balance between open and enclosed flare designs. These systems incorporate a protective shroud around the flame to reduce visibility while maintaining combustion efficiency. They are often used in applications where a fully enclosed flare is not necessary but a visible flame is undesirable.
Pros:
- Reduced flame visibility while maintaining an open-air design
- More compact than fully enclosed flares
- Lower emissions compared to candlestick flares
Cons:
- Higher cost than utility flares
- Lower gas volume capacity, typically under 1200 scfm
Choosing the Right Flare for Your Application
Selecting the best flare depends on several factors, including regulatory requirements, site location, and operational goals.
- Remote or industrial locations: Utility flares are a cost-effective solution where visibility and noise are not concerns.
- Urban or environmentally sensitive areas: Enclosed flares provide a safe and compliant alternative with minimal environmental impact.
Parnel Biogas
Parnel Biogas’s expertise ensures that each flare system is engineered for optimal performance, helping businesses comply with regulations while maintaining operational efficiency. Whether you need a basic utility flare or a more complex system, Parnel Biogas provides reliable solutions tailored to your needs.
Flares play a vital role in managing biogas emissions safely and efficiently. By understanding the different types of flares available, businesses can make informed decisions to optimize performance, reduce environmental impact, and meet compliance standards. If you’re looking for a customized flaring solution, Parnel Biogas is ready to assist with industry-leading expertise and technology.
