Overview

GFS is the master distributor for the GTI-Altronic <http://www.gti-aci.com/> line of Bi-Fuel conversion technology for stationary applications in the US for Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Ohio, West Virginia, Maryland, Delaware, Washington D.C., Virginia, and Florida. GFS is also the Master Distributor for Mexico and the countries of the Caribbean. The GTI Bi-Fuel System is a retrofit technology that allows diesel engines to operate on a mixture of diesel fuel and natural gas. This is achieved through the use of proprietary and patented technologies that are installed externally of the engine. Conversion to GTI Bi-Fuel requires no major changes or modifications of the engine and allows the engine to operate on gas mixtures ranging from 50% to over 75% of total fuel consumed. After conversion to Bi-Fuel, the engine can still be operated on 100% diesel fuel without loss of power or efficiency. The Bi-Fuel System has been designed to allow for switching of fuel modes during full or part load conditions, without interruption in engine speed, power or stability. The Bi-Fuel System utilizes a fumigation gas delivery method whereby gas is delivered to the cylinders via the standard engine air-intake system and is then ignited by a diesel “pilot” which acts as an ignition source for the air-gas mixture.

Advantages

• Extended generator runtime when running on pipeline gas.
• Reduced operating costs.
• 50% to 75% less diesel is consumed.
• There are no reductions in power output.
• Does not require modification of the engine.
• Lower investment vs. spark-ignited gas engines.
• All high pressure gas components UL listed and/or CSA approved.
• Gas concentration in engine combustion air is less than 3% by volume.
• Mixture is non-explosive/non-flammable until compressed in the combustion chamber.
• Generator can run on 100% diesel if required.

Extended Runtime Example

1,500 kWe Generator with 2000 gal. Diesel Storage, Unlimited Gas Supply.

• Runtime can be extended 3 times as much with a 75% substitution rate!

Applications

The Bi-Fuel System has been designed for constant speed applications such as engine-driven electric power generators, engine-driven pumps, compressors and other industrial applications. Variable speed applications may also be converted to Bi-Fuel depending on the governing system used and the method of engine operation. The Bi-Fuel System has been designed for continuous-duty operations such as prime power generation and oil field pumping operations.

Bi-Fuel System Sizing

The Bi-Fuel Technology

Typical Bi-Fuel Components

• Gas Filter
• Gas Pressure Regulator
• Electrically-operated Shut-off Valve
• Control Panel
• Engine Sensors
• Gas Train Sensors
• Wiring Harnesses
• Air/Gas Mixer
• Manual Shutoff Valve
• Gas Power Valve/Flow Control Valve
• Dedicated sensors monitoring required parameters