A digital tank gauging system uses radar technology to monitor and control fuel storage tanks. It provides real-time tank level monitoring, inventory calculations, alarm handling and automated reports. The key components include radar level transmitters, temperature transmitters, a field communication unit, and tank inventory management software. The software provides inventory data, calculations, and custody transfer functions to manage fuel storage.
2. Abbreviations used in this presentation APC -Analog Processing Card API- American Petroleum Institute DAU- Data Acquisition Unit DCS- Digital Control System. EEPROM- Electrically Erasable Programmable Read Only Memory FBM -Field Bus Modem FCC -Field Communication Card FCU- Field Communication Unit FMCW- Frequency Modulated Continuous Wave FSK -Frequency Shift Keyed HMI -Human Machine Interface 8/12/2009 SARAVANA KUMAR B.T 2
3. Abbreviations used in this presentation ISO- International Standard Organization JB -Junction Box LCD- Liquid Crystal Display OIML- International Organization of Legal Metrology PC -Personal Computer PCB- Printed Circuit Board PROM- Programmable Read Only Memory RDU -Remote Display Unit RF-head A device for emitting and receiving microwaves. ROC- Relay Output Card 8/12/2009 SARAVANA KUMAR B.T 3
4. Abbreviations used in this presentation RTD- Resistance Temperature Detectors RTG- Radar Tank Gauge SCADA- Supervisory Control and Data Acquisisition System SPC -Signal Processing Card TH -Transmitter Head THE -Transmitter Head Electronics TIC- Transmitter Interface Card TM –Tank Master TMC- Transmitter Multiplexer Card TRC -Transformer Rectifier Card TRL -TankRadar L (First generation) VAC -Volts Alternating Current VDC- Volts Direct Current 8/12/2009 SARAVANA KUMAR B.T 4
5. What is Digital Tank gauging system and why it needs a separate system “A separate system for monitoring and controlling the fuel storage tank is needed because of the following” Safety(fuel explosion), Inventory Calculation. Monitering the tank parameters. 8/12/2009 SARAVANA KUMAR B.T 5
6. Digital tank gauging system Daily/Weekly/Monthly consumption report. Real time level monitoring. Total liquid level and volume. Total incoming quantity. Total outgoing quantity. Missing fuel quantity report. Balance stock inventory. Custom made report. 8/12/2009 SARAVANA KUMAR B.T 6
7. Digital tank gauging system Multi level report. Identify Loosing fuel report. User friendly tank content and activites display Alarm and events status continuously checked and report. 8/12/2009 SARAVANA KUMAR B.T 7
8. Digital tank gauging system An ordinary field level measuring instrument does not have the capacity to do the above mentioned “So Digital tank gauging has to separate system” 8/12/2009 SARAVANA KUMAR B.T 8
9. Applications of radar tank gauging Storage tanks at refineries and tank terminals LPG storage Power plants Chemical & petrochemical industry Pharmaceutical Food and beverage Water and sewage treatment Hydroelectric power generation and dams Cement, powder, wood chips and other solid material applications 8/12/2009 SARAVANA KUMAR B.T 9
10. Why Use Radar ? Radar transmitters fit easily into your process, They can be mounted from the top, sometimes the side or even on the outside through a glass window , plastic or GRP vessel! Very small blocking distances maximise your vessel capacity Installed or changed without emptying your tank Commissioned accurately on or off line without changing the level No moving parts means no drift or recalibration 8/12/2009 SARAVANA KUMAR B.T 10
11. Features and Benefits mPuls handles agitators and obstructions easily using integral ECHOFOX software • mPuls features unique, proven software with high sensitivity and wide dynamic range • A “false echo” system capable of distiguishing unwanted static and moving reflections • Experience in hundreds of thousands of applications on solids and liquids • Proven reliability • Great service, application advice and after sales service 8/12/2009 SARAVANA KUMAR B.T 11
12. Types of measurments used in radar PLUSE Radar FMCW radar 8/12/2009 SARAVANA KUMAR B.T 12
13. PULSE RADAR Low accurate PLUSE Radar transmitter commonly used for process vessel application Loop Powered System: Only Intrinsically Safe, low resolution on the measured parameter, can transmit only one parameter at a time, low update rate Doesn’t have antennas for existing still pipe application without obstructing manual gauging or sample taking Temperature Input options are not available Tank gauging system software with inventory calculations not available. Relay outputs for Tank protections not available No installation reference for fuel oil tanks Not approved for inventory calculations Different Models for different tanks and requires more maintenance 8/12/2009 SARAVANA KUMAR B.T 13
14. FMCW RADAR High accuracy FMCW radar. Refer to below comparison between PLUSE and FMCW Radar 4 Wire System with digital compunction. All measured parameters transmitted in 2 wire with high updated rate. Level and temperature can be transmitted in same cables. Antennas available for all type pf tank opening and special flip arrangement for existing still pipe installation to do manual gauging or sample taking. Built-in feature available International agencies like NMI, PTB approved Tank gauging system software with all inventory calculations available. Software developed and supported by Rosemount itself Built-in feature available Large number of instillation reference in Aramco & SABIC and a copy is attached Approved for inventory and custody transfer applications by many international agencies. Same Electronic unit for all tanks and only antenna changes based on type of tanks. Less spares and low maintenance. 8/12/2009 SARAVANA KUMAR B.T 14
15. Industry Standards for Radar Tank Gauging Saudi Aramco: 34-SAMSS-319: Radar Tank Gauging Equipments API: American Petroleum Institute/Manual of Petroleum Measurement Standards: API MPMS ch. 3.lA Standard Practice for Manual Gauging of Petroleum and Petroleum Products in Stationary Tanks API MPMS ch. 3.lB Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary Tanks by Automatic Tank Gauging API MPMS ch. 7 Static Temperature Determination Using Fixed Automatic Tank Thermometer API 2350 Overfill Protection for Storage tanks in Petroleum facilities 8/12/2009 SARAVANA KUMAR B.T 15
16. ISO: International Organization for Standardization ISO 9001 Quality Systems-Model for quality assurance in design/development, production, installation and servicing ISO 14001 Quality Systems-Model for quality assurance in environmental management ISO 4266 part 1, 3, 4 & 6 Petroleum and liquid petroleum products- Measurement of level and temperature in storage tanks by automatic methods 8/12/2009 SARAVANA KUMAR B.T 16
17. OIML: International Organization of Legal Metrology: OIML R85 Conformity to pattern requirements by the International Organization of Legal Metrology (OIML) R85, edition 1998 class 2. Test report format R85 annex E shall be available. The product shall be registered at the OIML certificate database. (www.oiml.org) 8/12/2009 SARAVANA KUMAR B.T 17
18. Safety standards: IEC 61508-2, - 3 Functional safety of electrical/electronic/programmable electronic safety related systems IEC 61511-1, -2, -3 Functional safety – Safety Instrumented Systems for the process industry sector TÜV over fill safety ZulassungsgrundsätzefürÜberfüllsicherungen (ZG-ÜS) des DeutschenInstitutsfürBautechnik, Berlin; Stand Mai 1993 8/12/2009 SARAVANA KUMAR B.T 18
19. Electrical standards for hazardous areas: Local regulations apply Examples: USA Class 1 div 1 Europe zone 0, Ex IIB ia, zone 1, Ex IIB d, e ATEX C-UL (Canada) IECEx Gost (Russia) 8/12/2009 SARAVANA KUMAR B.T 19
22. Parameter to be measured Level Flow rate Gross observed volume Net observed volume Gross standard volume Net standard volume Weight Mass Density 8/12/2009 SARAVANA KUMAR B.T 22
23. MAJOR TANK GAUGING PARTS Radar level transmitter Temperature transmitter Tank side mointering Field communication unit Field bus modem Tank gauging HMI Interfacing with DCS 8/12/2009 SARAVANA KUMAR B.T 23
24. Radar level transmitter There are no of types of radar transmitters are used according to the application, they are as follows. Pro Parabolic Antenna Gauge. Pro Still-pipe Array Antenna Gauge. Pro Cone Antenna Gauge. Pro Still-pipe Antenna Gauge. Pro Process Seal Antenna Gauge. Pro Rod Antenna Gauge Tank Radar Rex 8/12/2009 SARAVANA KUMAR B.T 24
25. Radar level transmitter These measure the level either by PULSE or FREQUENCY method The type of gauge will depend on various factors such as. Noozle height. Medium. End connection details. Pressure, Temperature values. 8/12/2009 SARAVANA KUMAR B.T 25
26. Temperature transmitter There is also an temperature transmitter which measure the temperature of the tank. There are 2 provision for this , it may be single spot temp measurment and mulit spot temp measurment . The o/p from this transmitter will be a 4 to 20 ma hart config. 8/12/2009 SARAVANA KUMAR B.T 26
27. Tank side monitoring The main purpose of this tank side monitering is to receive various signals from the radar , temp transmitter…..and give a standard signal to the FCU(field communication unit) 8/12/2009 SARAVANA KUMAR B.T 27
28. Field communication unit The Field Communication Unit (FCU) is a data concentrator that continuously polls data from field devices such as Radar Tank Gauges, Data Acquisition Units and Remote Display Units and stores them in a buffer memory. Whenever a request for data is received, the FCU can immediately send data from a group of tanks from the updated buffer memory . The FCU acts as a slave on the group bus and as a master on the field bus. The unit has six communication ports. The ports can be individually configured as either group bus ports or as field bus ports according to one of the alternatives below: 8/12/2009 SARAVANA KUMAR B.T 28
29. Field communication unit An interface board can be connected for each communication port. These boards can be either FCM boards for the TRL/2 Bus or FCI boards forRS-485 communication. Two group bus ports canal so be configured as RS-232 by connecting a jumper connector instead of an FCM or FCI board . As standard the Field Communication Unit is delivered with six FCM boards and two RS-232jumper connectors. 8/12/2009 SARAVANA KUMAR B.T 29
30. Tank gauging HMI HMI plays an important role in tank gauging because all the inventory calculations are seen there.. 8/12/2009 SARAVANA KUMAR B.T 30
31. Field bus modem BENEFITS • Increases the possible distance between a FCU and TankMaster PC • Diagnostic LEDs on front cover • Enables multidrop - one TankMaster can serve many FCUs via the FBM 2180 • Multiple mounting options • Enables FCU redundancy 8/12/2009 SARAVANA KUMAR B.T 31
32. OVERFILL PROTECTION The measurement of the level for overfill protection is independent of other gauging systems installed on the tank. High and high-high level alarms that can bee seen or heard by the operator controlling the tank transfer, such as audible sirens or horns and visual lights. A device that when activated can automatically trigger a shut down procedure for the process causing the alarm. 8/12/2009 SARAVANA KUMAR B.T 32
33. ore stringent regulations may be required for facilities with: Permeable ground materials that are inside the containment area "Old" tanks that can be more susceptible to corrosion. Tanks near surface water such as rivers, wetlands or lakes 8/12/2009 SARAVANA KUMAR B.T 33
34. Measuring for Overfill Single point measurement For single point measurement, an instrument is installed at the high and/or high-high level and will sense when the product reaches that level. The most common of which are simple stand alone mechanical switches or electronic tuning fork technology. Single point measurement devices tend to be simple, very reliable, low cost units that can be installed easily 8/12/2009 SARAVANA KUMAR B.T 34
35. continuous measurement For continuous measurement, a standard level gauge is a common solution. Any of the major gauging technologies can be used, float and tape (mechanical), servo, radar or magnetostrictive technologies. Each provides their own benefits based on the application. Continuous measurement is favored by some over single point measurement. Your operators can check the status of the gauge at any time and the gauge's operation can be monitored for deviation against the primary level device. The main benefit - you know if there is a problem with the gauge before it becomes an overfill problem and your operators do not need to climb a tank to check the operation. 8/12/2009 SARAVANA KUMAR B.T 35
37. Tank Inventory Management Software Tank Master is the powerful Human Machine Interface (HMI) for tank inventory management. It provides inventory and custody transfer functions , configuration, and service and set up for Saab Rosemount’s tank gauging system. All calculations are based on current API and ISO standards. 8/12/2009 SARAVANA KUMAR B.T 37
38. Features • Real time tank gauging data. • Real time inventory calculations based on API and ISO standards. • Hybrid tank gauging. • API calculator. • Full network capabilities. • User-friendly navigation. • Interactive configuration and installation. • Batch report for internal and external transfers. • Historical data sampling. • Automatic reports. • Reliable alarm handling. • Internet access of tank data. • Customized views. • Integration with other tank gauging systems • Worldwide service and support. 8/12/2009 SARAVANA KUMAR B.T 38
40. the user has access to Real time tank gauging data. Real time inventory calculations based on API and ISO. Hybrid tank gauging Batch reports for internal and external transfers. Historical data sampling 8/12/2009 SARAVANA KUMAR B.T 40
41. Automatic reports. Reliable alarm handling. User manager. Customized views. Custody transfer batch handling. Open system which can utilize other vendor´s products. Internet and WAP capabilities through TankMaster.net. Alarm panels, horns, valve monitoring, etc. using TankMaster I/O terminals (IOT). 8/12/2009 SARAVANA KUMAR B.T 41
42. Parameter to be measured Level Flow rate Gross observed volume Net observed volume Gross standard volume Net standard volume Weight Mass Density 8/12/2009 SARAVANA KUMAR B.T 42