Any-Fuel™ technology is simple to use while providing both operational reliability and flexibility. Save money by operating on flare gas while being confident that traditional fuels can be used to ensure reliable power.  Any-Fuel™ technology not only reduces costs but eliminates fuel related headaches.

Equipment running on Any-Fuel™ simplifies logistics and installation.  With an onboard fuel tank, Dynamo turbines with Any-Fuel technology can be the first equipment installed on a pad, with lease gas attached via a simple plumbing connection as it comes available.   Just as quickly, Any-Fuel™ turbines can be switched onto diesel or propane if lease gas becomes intermittent or the well is shut-in.

Any-Fuel™ turbines are easy to configure and use.  Onboard controls automatically identify fuel content and set throttle for given engine power setting.  Fuels are hot-swappable, meaning they can change while the turbine is operating, and gas can be regulated from multiple sources (e.g., natural gas & propane).  The turbine prioritizes the use of gas and will automatically change over to using Diesel should gas become intermittent.

 Types of fuels:

*Any-Gas™ and Any-Liquid™ models are available for cost focused customers; upgrade kits are generally available for all Dynamo products.

Gaseous Fuels:

  • APG
  • Lease Gas
  • CNG / LNG
  • Propane
  • Butane

Liquid Fuels:

  • Gasoline
  • Diesel
  • Wet gas
    (Requires special add-on)

Dynamo products are made to be simple to use while maintaining flexible operations.  Starting is simple, with push-button start.  During start-up, the full authority digital engine control unit (known as a FADEC) will attempt to start on gas then liquid fuel.  As part of the start-up process, it will adjust for different fuel types and adjust to ensure reliable and effective turbine performance.

Dynamo products will generally have full power available within five minutes.  Data readout can be used to show what kind of fuel is being used and its BTU content.

Below is a specification for how we define Any-Fuel™—you’ll see its pretty broad.  Just like you, when the label says Any-Fuel™, we expect it to work on any fuel.

We are so confident in our technology; Dynamo provides a 180-day guarantee that our system will work on your fuel.  If not, ship it back to us, and we will offer a full refund.

If you want to confirm your fuel will work with a Dynamo turbine, feel free to contact us with a gas sample analysis or chat with one of our agents.

Liquid Fuels:

Dynamo Any-Fuel™ products come with an onboard fuel tank.  The turbine controller will adjust during start-up, and in real-time for what is in the tank, no intervention required.

Gaseous Fuels:

Gaseous fuels are connected through a standard NPT-fitting and should be regulated to at least 75 PSI for best performance.  Multiple gaseous fuels can be mounted through external Y-connectors and check-valves.  Gas should be regulated to 9°C (18F) above the dew point.

Dynamo also provides options for higher pressure gas or alternative fittings.

Wet Gas & Volatile Fuels Fuels:

Associated petroleum gas can be wet from water and hydrocarbon condensation.  Equipping Any-Fuel™ turbines with a wet-gas condition package will enable automatic separation and handling of multi-phase fuels that are piped through the external NPT fitting.  Liquids in the fuel stream are redirected to the liquids manifold.  This is done because liquids generally have 1000x energy density of gases and need a different throttle for proper regulation.   Liquids and gas are then mixed back in the combustion system and metered to ensure no liquid spills are present due to overflow.

Water:

Liquid water can be present in either gas or liquid tanks with less than 10% by mass.

Flexibility:

If you only plan to use one type of fuel, consider downgrading to the Any-Gas or Any-Liquid™ version of our product.  You still can run various fuels (be it gas or liquid phase) on a single platform, but don’t have to pay for extra functionality you don’t need.  You can always upgrade to a full Any-Fuel™ and wet gas system later.

Vortex Stabilized Power Head Nozzle

In combustion, controlling where fuel hits air is very important to create a stable and robust flame.  Any-Fuel™ turbines use the best technology for ensuring complete combustion and robust operation of the gas turbine.

Combustion occurs in a combustion zone where air and fuel need to be mixed at the right ratios to get effective combustion.  Too much fuel and the flame cannot breathe, too little and the flame will fizzle out.  We control this with a nozzle which generates an air vortex to trap the flame and mix the fuel.  This vortex also layers in the air along the flame to ensure the right ratio of fuel and air always exists where it needs to be.  For example, propane will burn in a slightly different region in our combustor than natural gas, but it will always burn effectively.

By controlling the region of air with our power head, we can control the flame, its efficiency and avoid pitfalls that flame out, flashback, and growling.

Rich Quick-mix Lean Combustor

In a perfect world, fuel and air would be mixed perfectly in a process called stoichiometric combustion, where all of the oxygen and fuel is fully spent.  Perfect stoichiometric combustion is very hard to create, especially when the fuel itself is unknown like associated petroleum gas.  Any-Fuel™ technology employs a robust combustion technique known as Rich Quick-mix Lean (RQL) combustion, a proven technique for ensuring complete combustion and low emissions.

Combustion happens in multiple phases; fuel is mixed through the nozzle to mix with air in a rich combustion zone.   Rich combustion (more fuel) is always much more stable and reliable than lean combustion (more air) but results in incomplete combustion as oxygen is used up.  This rich combustion ensures fuel combusts effectively while limiting NOx.

As the flame moves down the combustor, air jets quickly mix air (and oxygen).  The leans out the combustion zone, eliminating both carbon monoxide (CO) and unburned hydrocarbons.  Our long combustion chamber provides ample time for the combustion process to occur, which is essential when using heavier hydrocarbons like diesel.

RQL combustion was developed for the aircraft industry because the rich combustion zone provides significantly better stability over techniques used in other industrial turbines.

From Lefebvre & Ballal, “Gas Turbine Combustion”

 

Advanced Controls

Mechanical design of how air is mixed and burned is only two-thirds of what makes the Any-Fuel™ system work.  Metering out that fuel based on engine state is the difference between stalling out and over-speed.

 

Any-Fuel™ controls implement a robust PID control scheme combined with a novel proprietary architecture.  It is this control system that enables the turbine to quickly produce the right amount of power while operating on various fuels and operating environments without user intervention.

Lastly, this control system is uniquely designed for Dynamo Any-Fuel™ turbines.  Dynamo turbines are simple cycle and lack a recuperator.  Other microturbines are not able to react as quickly to changes in fuel or power demand.  It is this control system that enables Dynamo turbines to be true prime movers.  To learn more about how this system works, take a look at our  Any-Load™ technology page.