1350742377-dam project simulation dam .pptx

Dam simulation

1. Dam Project PREPARED BY AHMED ALYASIN ALKHANI STUDENT NO. 200000991020 Dam Hydraulics SUBMITTED TO Prof. Dr. MEHMET İSHAK YÜCE January 2022 Civil Engineering Department Hydraulic Division

2. Content Introduction Dam Definition Project Location Topography Reservoir Capacity(Mass curve analysis & Sequent peak analysis) Exploring dam height using WMS Dam Types Flow-Duration Curve Calculation of power and turbines Project Cost & Payback Period Estimation

3. Introduction The aim of this project is to know the steps of construc ti on a dam and work on simula ti ng it by studying a suitable area From the State Hydraulic Works "Devlet Su İşleri" website we can collect data and work on it We need a location with monthly discharge data for at least 30 years with minimum average of 10 m ^3/s n each year

4. A dam is a structure which prevents the flow of water and accumulates it in a reservoir Dam Definition

5. Project Location

6. Project Location 17. Dogu Akdeniz Basin Station NO. D17A016 Station name: GÖKSU NEHRI KRAVGA BRIDGE I T IS AT THE BRIDGE IN KRAVGA (GÖKSU) LOCATION, AT 7 KM OF KÖPRÜBAŞI VILLAGE ROAD 30 KM TO MUT-ERMENEK ROAD TO THE RIGHT 33°11'15" East - 36°46'54" North Due to topography I chose a location 9Km away from this location

7. Topography

8. Topography By WMS

9. Capacity of Reservoir Designing the capacity of a storage reservoir involves with determination of the critical period In general, there are three methods to find out the capacity: 1- Mass curve analysis 2- Sequent-peak analysis 3- Operation study

10. Mass Curve Analysis Proposed by Ripple in 1883 Graphical inspection of the entire record of historical streamflow for a critical period Cumulative plotting of net reservoir inflow Slope of mass curve gives value of inflow (S) at that time. Slope of demand curve gives the demand rate (D) or yield. The difference between the lines ( a+b ) tangent to the demand line (∑D) drawn at the highest and lowest points (A and B, respectively) of mass curve (∑S) gives the rate of withdrawal from reservoir during that critical period.

11. The maximum cumulative value between tangents is the required storage capacity Mass Curve Analysis

12. DSI Data

13. Reservoir Capacity Mass Curve Method

14. 2014 DSI Data months demand ∑demand supply ∑ supply oct 15.28 15.28 10.50 10.50 nov 15.28 30.56 14.40 24.90 dec 15.28 45.84 14.80 39.70 jan 15.28 61.12 22.80 62.50 feb 15.28 76.4 20.60 83.10 mar 15.28 91.68 24.90 108.00 apr 15.28 106.96 15.30 123.30 may 15.28 122.24 13.00 136.30 jun 15.28 137.52 13.80 150.10 jul 15.28 152.8 12.30 162.40 aug 15.28 168.08 9.98 172.38 sep 15.28 183.36 11.00 183.38 reservoir capacity : 21.1*31,536,000= 665,409,600/1,000,000= 665.4096*10 ^6 m^3

15. 2001 DSI Data oct 16.80 16.80 11.80 11.80 nov 16.80 33.60 12.50 24.30 dec 16.80 50.40 12.60 36.90 jan 16.80 67.20 17.90 54.80 feb 16.80 84.00 16.60 71.40 mar 16.80 100.80 40.30 111.70 apr 16.80 117.60 23.50 135.20 may 16.80 134.40 21.60 156.80 jun 16.80 151.20 13.30 170.10 jul 16.80 168.00 10.80 180.90 aug 16.80 184.80 10.20 191.10 sep 16.80 201.60 10.50 201.60 months demand ∑demand supply ∑ supply reservoir capacity : 34.8*31,536,000= 1,097,452,800/1,000,000= 1097.453*10 ^6 m^3 B A B

16. 1974 DSI Data oct 17.35 17.35 9.18 9.18 nov 17.35 34.70 9.94 19.12 dec 17.35 52.05 18.10 37.22 jan 17.35 69.40 13.00 50.22 feb 17.35 86.75 24.60 74.82 mar 17.35 104.10 66.60 141.42 apr 17.35 121.45 26.60 168.02 may 17.35 138.80 17.50 185.52 jun 17.35 156.15 7.11 192.63 jul 17.35 173.50 5.80 198.43 aug 17.35 190.85 4.98 203.41 sep 17.35 208.20 4.80 208.21 months demand ∑demand supply ∑ supply reservoir capacity: 65.75*31,536,000= 2,073,492,000/1,000,000= 2073.492*10 ^6 m^3 B A B

17. Sequent-Peak Analysis (SPA) SPA is a modification of the Mass Curve analysis for lengthy time series The procedures involve the following steps: Plot ∑(supply-demand) Locate the initial peak and the next peak Compute the storage required which is the difference between the initial peak and the lowest trough in the interval Repeat the process for all sequent peaks Determine the largest value of storages as “ reservoir capacity ”.

18. t  (St – Dt) (+) (-) V 1 V 2 V 3 Sequent-Peak Analysis (SPA)

19. Sequent-Peak Analysis (SPA)

20. Sequent-Peak Analysis (SPA) A B 18.48 582,785,280= 582.7853 *10^6 m^3 68.95 2,174,407,200= 2174.4072*10^6 m^3 A B So reservo ir capacity is 2174.4072*10 ^6 m^3

21. Dam H eight: Exploring dam height using WMS 626 m 279 .58m

22. Storage ( m ^3) Elevat i on ( m ) Dam H eight: Exploring dam height using WMS

23. Dam H eight: Exploring dam height using WMS Due to reservoir capacity that I have calculated by Sequent-peak analysis which it was 2219.378*10 ^6 m^3, I will choose the capac ity in WMS 2219.718769 *10 ^6 m^3 , which give me an elevation of 449.22m, so the high water level = 449.22-279.58=169.64m, so dam height= 169.64+3.5=173.14m Storage ( m ^3) Elevat i on ( m )

24. Dam H eight: Exploring dam height using WMS

25. Dam Types

26. Topographical situation of the dam site Foundation and geological structure Location and type of suitable material to be used in dam construction Transportation facilities Earthquake Climatic conditions and duration of construction Economic situation of the country Factors Affecting Selection Of Dam Type Due to these factors I have found that the most suitable dam type for my project location is Rock Fill Dam , it is cheaper than other types, suitable with the dam height, made of natural materials and suitable with topography of the area

27. Dam Estimated Dimensions 519m 173m 312 m upstream downstream 1 1.9 1 1.9 1.9

28. Flow Duration Curve Flow Duration Curve (FDC) is a plot of discharge against the percentage of time the flow was equaled or exceeded (Discharge-Frequency curve)

29. Now after we plot the Flow Duration Curve we can calculate the expected generated energy and the profit of this energy by this equation: Calculation of power and turbines Duration% (1.1-0.9)*Qavg p(w) p(kw) E(kw/h)/year 34.64052 35.59811 18,815,947 18,816 164,827,704 50 34.53565 26,348,284 26,348 230,810,972 95.09804 31.41608 45,586,714 45,587 399,339,619 Total Energy 794,978,295 Profit 63,598,264 $

30. Calculation of power and turbines Dam height 173.14m From these data: and due to turbine application chart I can conclude that we need one active 80 MW Francis Turbine and one more as spare Rank Duration(%) Q (1.1-0.9)*Qavg 1 0.163398693 191.00 1.1 37.983 612 100 0.65 0.9 31.077

31. Project Cost And Payback Period Estimation 1.Project Main Construction Works 703,804,444 1.1 P&G Works 41,012,542 1.2 Civil Works 536,340,944 1.3 Metal Structure Manufacture 80,000,000 1.4 E&M Equipment and Installation 46,450,958 2. Project Monitoring and Management Works 14,538,310 2.1 Environmental and Fish Protection, Soil and Water Conservation 6,215,480 2.2 Monitoring on Hydrology, Water Regime and Sediment 6,167,969 2.3 Management and Monitoring on Dam Safety 2,154,861 3. Company's Scope of Work 97,194,321 3.1 Construction Supervision 17,640,769 3.2 Exploration, Surveying and Testing 56,275,512 3.3 Project Construction Insurance 12,022,938 3.4 Construction Safety Management 11,954,901 Total 825,537,075 $ So Payback period = 825,537,075 / 63598264 = 13 years 4.Land Acquisition & Resettlement 10,000,000