221117 Certification Test (Physical)_TGTDCL Dhanmondi.pptx

wer

1. Distribution Network Analysis (2) Example of Simulation U sing Small World D ata 15 Nov 2022

2. Team A Participant Certificated by TGTDCL 1 TGTDCL 2 TGTDCL 3 TGTDCL 4 TGTDCL 5 TGTDCL 6 TGTDCL 7 Team B Participant Certificated by TGTDCL 1 TGTDCL 2 TGTDCL 3 TGTDCL 4 TGTDCL 5 TGTDCL 6 TGTDCL 7

3. Q.1 1) Import, 2) resister and 3) open the files imported from Small World*. 1) Zipped file; * to_winnap_20221115_TGTDCL Dhanmondi_V002.zip 2) To be unzipped 23 csv files and to be placed on the “imported from SW” folder 3) Open the WinNAP app and file as shown in next slide. Open the file

4. Ref. Extract the Network Data Importing the Small World data 1) Import as “New Data” 2 ) Extract whole area in SW data

5. Q.3 Simulate DRS Setting pressure as below; 1) Aminbazar DRS: 0.35 MPa (50 psig ) 2) City Centre DRS: 0.17 MPa (24 psig ) Check the end point arriving pressure Q.2 Simulate DRS Setting pressure as below; 1) Aminbazar DRS: 0.17 MPa (24 psig ) 2) City Centre DRS: 0.10 MPa (14 psig ) Check the end point arriving pressure Rd.12/A Check point Check point Check point Dhanmondi

6. Q.5 To solve pressure shortage, to design reinforcement pipeline; Check the end point arriving pressure Q.4 Simulate check point Load m3/h as below; 1) Load change from 1.45 to 100 m3/h Check the end point arriving pressure Rd.12/A Check point Check point Check point Dhanmondi

7. Out put “Node” and ”Pipe” csv file of Q.5 : filename shall be ”Node_Mohiuddin.csv” Q.6 Out put folder: \Desktop\TGTDCL\Expor to SW

8. Team A Participant Certificated by TGTDCL 1 TGTDCL 2 TGTDCL 3 TGTDCL 4 TGTDCL 5 TGTDCL 6 TGTDCL 7 Team B Participant Certificated by TGTDCL 1 TGTDCL 2 TGTDCL 3 TGTDCL 4 TGTDCL 5 TGTDCL 6 TGTDCL 7

9. Location of Priority Areas （ Dhanmondi & Motijheel ） The location of two priority areas are shown in the figure below. Pipeline data of WinNAP is converted from Small World data based on the field surveys.

10. Estimation of Load 0.16 0.26 Average:0.18 0.24 0.22 The consumption status of customer by sampling surveys is shown on the left. The load of one customer is estimated 0.2m 3 /h and is allocated to the node located at the junction of service pipe in WinNAP . 0.02 (a) (b) (c) (d) (e) area number of customers total load (m 3 /h) Dhanmondi 6,218 1,245 Motijheel 5,933 1,187

11. Estimation of Load (2) As the usages of customers are of course different, assumed usages at peak time are also different. The case of customers surveyed by sampling is shown on the left. Some large consumers exist in two priority areas, so those usages at peak time should be assumed by the same procedure. JET is going to try to reflect the above problem. customer monthly usage(m 3 ) days of use hours of use usage at peak time(m 3 /h) a 66.17 31 8 0.27 b 75.36 31 8 0.30 c 36.73 31 5 0.24 d 50.04 31 5 0.32 e 14.88 31 2 0.24 average 48.64 31 5.6 0.27 【example of large consumer】 A hospital 10,000 31 10 32.3 B hotel 20,000 31 10 64.5

12. Estimation of Load (3) The number of customers with no meter is not known. By confirmation of some kind of relation between the diameter of riser pipe and the number of customers, JET will examine to be able to assume the consumption of customers with no meter or not. Region Code Upzilla /Address Diameter Point Type Customer Count MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 3/4 Riser Point (RSP) 2 MTJ Motijheel 3/4 Riser Point (RSP) 3 MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 1 Riser Point (RSP) 24 MTJ Motijheel 3/4 Riser Point (RSP) 3 MTJ Motijheel 3/4 Riser Point (RSP) 9 MTJ Motijheel 1 Riser Point (RSP) 14 MTJ Motijheel 3/4 Riser Point (RSP) 2 MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 3/4 Riser Point (RSP) MTJ Motijheel 3/4 Riser Point (RSP) 【example of survey result】

13. Virtual Pipeline and Load from Regulator The location of regulators are out of the priority areas. Considering the pressure loss between the regulators and the priority areas, virtual pipeline and load from regulator are assumed by those locational relation. After the digitalization for pipelines of all area this procedure is not necessary. 250mm × 3,263m Nandipara DRS XXm 3 /h Citycentral DRS XXm 3 /h

14. Running of Simulation Pressure Type psi Mpa 1,000 6.89 HP 300 2.07 HP 140 0.96 MPA 50 0.34 MPB Before the running of simulation, select the pressure type according to the table of pressure range below.

15. Result of Simulation Condition of simulation ・ the load of one consumer : 0.4m 3 /h (double up to reflect the consumption by large consumers and no meter customers) ・ the virtual load from regulator( Nadipara DRS ･ Citycentral DRS): each 1,190m 3 /h (the same value of total load of priority area) ・ set pressure value of regulator : 0.10Mpa(15psig) The result of simulation for Motijheel area using the temporary load data is shown in the graph below. As a lot of wrong information for the location of riser pipe has been input , the loads of customers are not set properly. So the right result cannot be obtained. It is currently being modified.

16. Confirmation of Reliability of Simulation P R : set pressure of regulator P im : measured pressure of each node P ic : caliculated pressure of each node It is necessary to measure the pressure at some points for confirmation of reliability of simulation. ⇒ Q 2 ∝ P 1 2 -P 2 2 １ ２ R ３ ４ ５ × １ × 4 × 3 × ２ × 5 P R 2 -P ic 2 P R 2 -P im 2 If the gradient of graph by linear approximation is very different from 1, calibrate the load using load rate (= square root of the gradient). i : pressure measurement point Virtual load from regulator can be easily obtained by the measurement at the entrance point of priority area. i

17. Outline of Upstream Network Mipur 　 DRS Dhanmondi Motijiheel Nandipara 　 DRS Dhania 　 TBS MipurMaz 　 DRS Joarsaha 　 DRS Gulshan DRS Aminbazar 　 CGS Mazerchor 　 DRS Hazaribag 　 DRS Aminbazar 　 DRS Demra 　 CGS Canton 　 DRS 300psig 140psig 140psig 1,000psig 1,000psig 50psig 50psig Tejgaon 　 CGS Citycentral 　 DRS The outline of upstream network supplying to two priority areas is shown abov e. (Some pipelines are omitted)

18. Simulation for Upstream Network ・ The flowrate of three DRSs can be known by simulation that be just done, if there are no other areas to supply from three DRSs . ・ The flowrate of other DRSs also can be known by the same procedure. ・ The simulation should be done in the order from low to high of pressure range, getting the flowrate of regulators.(LP → MPB → MPA → HP) ・ Confirm the reliability of simulation, comparing the measured value and calculated value of flowrate of main regulators(CGS, TBS). Simulation for multiple pressure ranges can be done at one time. i