JDE - TFMS
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Headqua rters Office H-ndustan Bhavan DGM (O&D) - NZ I WZ O&D1HCMfGVN September 16, 2008 of JDE - TFMS- Pilot at Manglla and Rewari Dep,ots As you are aware, Terminal Automation System (TAS) is being implemented at our Terminals/Depots. To derive full benefits of TAS in our day to day operations, we aJe also integrating Tank Farm Management System (TFMS) with JDE so that human interface can be eliminated in activities r,elated to stock accounting. r,ecordingof Density and Temperature. During recent review of SBUs and ;IS Department by C&MD, it was emphasized that the above activity should be taken up on top most priority so that manual labour can be removed from all the depots and erminals wherever TAS / ATG ! TFMS has been implemented. During the stabilization period of A1G I TFMS, it is proposed that the readtngsfrom the TFMS are compared with the manual readings of tank gauges, temperature and density wh ich wou Id give confide nce to the- Management regardiog efficacy of the equipment and measurement procedures. We have chosen Manglia & Rewari as the two pilot locations and effective immediately, these locations need to keep record of aU the readings from the system and. aIso taken manuaJl y for comparison for a period of one month. Ween ume rate below some of the precautions to be taken in respect of manual readIngs. Dip Tape • Dip tape should be calibrated and correction factors, if any, should be applied. • Dip Tape should be free of Kinks and it should be made of Stainless Steel. • Weight ofthe Bob Is 21 ounces (1 ounce:;31.1 gms) • Grading on the Bob should be below 6 inches • The width of dip tape is 12mm and the teast count is 1mm. • Tape should be deaned and kept in good condition at all times • The location should preferably use new dip tap for this exercise. Gauging The calibrated reference height of the tank is very ing,auging of the tanks. The edge of the hand dip hatch 5 hould be clearly marked. 50 that the reading of the tape wi II be made at the same place each time. Whl e gauging the storage tanks, it should be ensured that the read ing on the tepe is match r 09 with the ca Iib rated reference height of the tan k.
Transcript of JDE - TFMS
Headquarters Office H-ndustan Bhavan
DGM (O&D) - NZ I WZ O&D1HCMfGVN
September 16, 2008
~ntegration of JDE - TFMSPilot at Manglla and Rewari Dep,ots
As you are aware, Terminal Automation System (TAS) is being implemented at our Terminals/Depots. To derive full benefits of TAS in our day to day operations, we aJe also integrating Tank Farm Management System (TFMS) with JDE so that human interface can be eliminated in activities r,elated to stock accounting. r,ecordingof Density and Temperature. During recent review of SBUs and ;IS Department by C&MD, it was emphasized that the above activity should be taken up on top most priority so that manual labour can be removed from all the depots and erminals wherever TAS / ATG ! TFMS has been implemented.
During the stabilization period of A1G I TFMS, it is proposed that the readtngsfrom the TFMS are compared with the manual readings of tank gauges, temperature and density wh ich wouId give confidence to the- Management regard iog efficacy of the equipment and measurement procedures. We have chosen Manglia & Rewari as the two pilot locations and effective immediately, these locations need to keep record of aU the readings from the system and. aIso taken manuaJly for comparison for a period of one month. Weenumerate below some of the precautions to be taken in respect of manual readIngs.
Dip Tape
• Dip tape should be calibrated and correction factors, if any, should be applied. • Dip Tape should be free of Kinks and it should be made of Stainless Steel. • Weight ofthe Bob Is 21 ounces (1 ounce:;31.1 gms) • Grading on the Bob should be below 6 inches • The width of dip tape is 12mm and the teast count is 1mm. • Tape should be deaned and kept in good condition at all times • The location should preferably use new dip tap for this exercise.
Gauging
The calibrated reference height of the tank is very ~mportant ing,auging of the tanks. The edge of the hand dip hatch 5 hould be clearly marked. 50 that the reading of the tape wi II be made at the same place each time. Whl e gauging the storage tanks, it should be ensured that the read ing on the tepe is matchr09 with the caIibrated reference height of the tank.
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Allemalively. gauging can abo be performed as per the foDowing procedure to neutrali:l:e effect of sludge accumulation on datum plate which leads to inac::curaci&s in gauging of the tank as the bob does not touch the datum plate and reference height ooes not match with the marKed reference heigl'll on the gauge hatch as per calibration of the tank.
Match the tape 00 the dip hatch 10 x·l0 cms(where K is the calibrated reference height of the lank) on the lape. The gauge of the product so measured should be added with 10 ems which is ,nibally reduced while matching with the refefer'lCe height. This will eliminate the problems related to the sludge accumulation on the datum plate Of any movement of the datum plate from its original position.
The manual gauging should be repeated so that three consecutive readings give a result within 1 mm.
Measurement of product in UIG lank!
Complete manual record of proclucl as well as walet dIp should be main!a,nad for undEtf ground tanks also which would be compared with the gross dIp available from TFMS.
Water Drainage
Replacement of bottom watef 00 monthly basis is essential to keep the tanks bonom water cleaf of hydrocarbons. This will facilitate sensing of water by ATG (provided as pan of TFMS) oorrectlv_ If the bottom wate.- IS concentrated WIth hydrocarbons. water dip from ATG will be erroneous due to haZiness of water at the bottom of the tank.
Temperature
The sensors for measurement of temperature thro' TAS are located in sud1 a way that one sensor is available every 2 metres height of the tank. The temperat",re of the product shoWl'l by TFMS is tile avera(l8 of all the sensors in the product.
During manual recording of lemperat",re readings. temperat",re shooJld normally be laken thru the dip pipe which is approx_ 600 mm from the shell of the tank.
Following guidelines should be followed while meas",ring temperature of the product in a tank.
• 6 calibrated Thermometers should be available in the location and only Calibrated Thermometers should be used.
• The least oount of the thermometer should be 0.250 C
Number of readings should be taken depending upon depth of product in the tank as detailed in the following table:
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Depth ·of product i'n I M·n No. of Points at whic h readings shouJd be storage tank readings taken More than 5 mtrs 3 I M below oi I surface
MiddIe of the produ.ct 1 M above bottom of product
3 mtrs to 5 mtrs 2 1 M below Oil surface 1 M above bott:om of the product
Less than 3 mtrs 1 MiddIe of the product in the tank
The average of aII the read ings shaII be the temperature of the product in the tank.
Density
• Density sho I.J Id be taken at 3 pJaees i.e. Top sampie, MiddIe sampie. Bottom sampIe. The density of the product can be determined by comp.uting the average of all the 3 readin9s.
• Only calibrated Hydrometers should be used • The least count of the hydrometer shouId not be more than 0.001.
We will have review of the data from TFMS as well as manual readings to evaluate the efficacy of the automation system and dependability of the data for stock accounting so that hurnan interface can be completeIy eliminated for these jobs.
.K.Gawali Gener,a~ ManagerOperations & Di.stribution
Cc : OGM - ERP (55) Please refer to your email wherein you have advised that since underground tanks are not provjded with full fledged TFMS (only gross dip available), hence these tanks will continue to be man I.J all y 9a I.J ged. Please note, as per our experience, the quantum of wate r in underground tanks [s negl.ig[ble or non-existant and therefore, we would like to discontjnue manual gauging of underground tanks also. We had detailed discussions on the subject with E&P wh 0 concur with our views. T FMS data packet being sent to yo,LJ by E&P in the specified format also contains data for underground tanks. We request you to lncorporate the same in the JOE for comparison during the ptlot peri.od.
Co : lEO (P&P) HB 2 Cc : GM (P&P) Grasham House
Cc : DGM (O&D) EZ, SZ I SI'".Manager (O&D) NeZ. NWZ, SCZ The above is seIf expianatory, piease advise Iactions under your zone wherever TFMS impl.ementation is [n progress f completed, the necessary precaution for record of manual read ings may be taken as mentioned in the letter
