Through advanced technology, service competency, and ongoing collaboration with experts in the aviation refuelling industry, BAFS has implemented a highly efficient aviation refuelling system. To maintain the highest international standards, BAFS strictly adheres to the oil companies’ guideline issued by the Joint Inspection Group (JIG) and endorsed by International Air Transport Association (IATA), “Guideline for Aviation Fuel Quality Control and Operating Procedures”.
Guideline for Aviation Fuel Quality Control and Operating Procedures
Today, BAFS provides aviation refuelling services to both Don Muang International Airport, and Suvarnabhumi Airport. Both systems are based on the underground hydrant pipeline network concept (or “Hydrant System” for short) and were the most advanced available at the time of their implementation. The Hydrant System at Suvarnabhumi Airport is notable in this regard, since it has applied all of the advances in Hydrant System technology developed since the system at Don Muang. Both Hydrant Systems are able to provide aviation refuelling services to all types of aircraft landing at either airport.
Every phase of BAFS aviation refuelling services are closely monitored by the Control Room and Flight Control Room located at each depot, and airport respectively, to ensure maximum service efficiency and safety.
1. Jet A-1 Supply Pipelines
Jet A-1 (also called aviation kerosene) is supplied to BAFS from various sources via two independent pipelines. This is to ensure that there is reliable supply of high quality Jet A-1 to both Suvarnabhumi Airport, and Don Muang Airport.
2. Aviation Fuel Depot
The purpose of aviation fuel depot is to serve as an intermediate storage facility for Jet A-1 so it can be distributed to the airport via the Hydrant System. Prior to distribution, the Jet A-1 is tested to ensure that the quality conforms to international standards. During distribution, the Jet A-1 is filtered to remove all impurities and to ensure that the product delivered to the airlines is “Clear and Bright”.
BAFS aviation fuel depot at Suvarnabhumi Airport is comprised of 5 main storage tanks (total capacity is 75 million liters), and 10 hydrant pumps (total flow rate is 4,540 cubic meters per hour). All 10 hydrant pumps are variable speed drives utilizing state of the art inverter technology to ensure that the fuel requirements of Suvarnabhumi Airport are satisfied while simultaneously reducing energy consumption.
To ensure the utmost safety, operational efficiency, and security the following facilities were installed,
a) Process Automation and Control System
The day to day operations of BAFS’ aviation fuel depot is controlled by an automated process control system called the “Distributed Control System” or DCS. The DCS is able to conveniently and quickly regulate the opening/closing of the fuel receiving/distribution valves, regulate the fuel receiving/distribution pumps, and store operating data of the various devices for future inspection should a problem arise.
b) Automatic Tank Gauging
Total Jet A-1 volume is relayed to the DCS via the automatic tank gauging system or ATG. The system measures the product level in each of the main storage tanks, which is later converted into a volume figure. It is also able to provide readings for density, and temperature in addition to level measurement.
c) Fire Fighting Facilities
The main depot as a vast array of fire fighting facilities; they range from water cannons, and tank cooling rings, to sub-surface foam injection and bund pourers. These facilities are always on-standby, ready for immediate action in the event of an incident.
d) Closed Circuit Television System
All areas of BAFS aviation fuel depot, including office buildings are monitored by an array of closed circuit television cameras situated in strategic locations throughout the facility. The high quality images are stored in digital format for immediate retrieval, and examination should an incident occur.
e) Perimeter Intrusion Detection System
In addition to the advanced CCTV system, BAFS has also installed a fiber-optic based perimeter intrusion detection system to aid in the deterrence, and subsequent apprehension of any intruders into the depot area
3. Into-Plane Service Facility
The ISF is comprised of an office building, maintenance building, underground storage tanks including pumps, fuel loading area, and testing/calibration station for refuelling equipment.
The Into-plane Service Facility (ISF) is the command, control, and communications center in the airport area; its purpose being to regulate refuelling operations at the airport. All aviation refuelling activities are conducted under the supervision of BAFS Flight Control Room also located at the Into-plane Office
4. Hydrant Pipeline Network
The hydrant pipeline network is a high pressure pipeline network running underneath the apron. Jet A-1 from BAFS aviation fuel depot is transferred via the main hydrant into the hydrant pipeline network to each aircraft parking stand.
All of Suvarnabhumi Airports 119 aircraft parking stands are serviced by a hydrant connection point, while only 96 parking stands at the old Don Muang Airport had hydrant functionality.
5. Aircraft Refuelling Vehicles
The last link in the aviation refuelling chain is the aviation refuelling vehicle, of which there are 2 types. The most widely used, and this is especially true in modern airports is the hydrant dispenser truck, while the other is the refueller tanker truck. Both are able to provide around the clock aviation refuelling service. Through strict quality control BAFS is able to ensure that the aviation fuel is “Clear and Bright” in accordance with accepted international standards. BAFS’ advanced, efficient and safe aviation refuelling services is certified by ISO 9001:2000 Quality Management System issued by Bureau Veritas Quality International (BVQI).
BAFS has implemented a computerized refuelling management system to increase the efficiency and ensure high quality of service. The system is divided into the following components:
a) Office System
The Office System at the Into-plane Service Facility is responsible for gathering information, managing service orders for aircraft refuelling vehicles, as well as personnel and equipment to meet the demands of the various airlines at the airport.
b) Vehicle Information System
Each aircraft refueling vehicles has an on-board computer system which gathers information about the vehicle’s activities, and relays back to the Office System. The on-board computer system also receives updated data regarding aircraft movement, fuel load requirements, and other relevant information from the Office System via wireless communication network, or USB flash drive.