REPORT OF EDUCATIONAL VISIT
at
Dhom-balkawadi dam’s hydro-electric
power plant
Class : TE (Civil)
VPCOE, Baramati
(Date:- 6th Sept 2013)
Department of Civil Engineering of Vidya Pratishthan’s College of Engineering,
organized one day educational visit to Dhom Balkawadi Dam, Wai (near
Mahabaleshwar), Maharashtra on 6th September 2013 for 71 T.E. Civil Engineering
students along with 4 staff members to study different aspects of Hydroelectric power
generation and discharge through spillway.
(http://wikimapia.org/#lat=17.9579062&lon=73.7058104&z=15&l=0&m=h)
Visit was organized with the prior permission and under guidance of honorable
Dr. S. B. Deosarkar Sir (Principal, VPCOE), Prof. G. N. Narule (Head of Civil Engg
Dept). Er. Pravin Ghorpade (Engineer from Irrigation Dept), Er Prakash Gaikwad from
Dhom-Balkawadi Dam Site helped a lot to take permission of visit from regional office
of Irrigation Department. Er. Suren Hiray (The Executive Engineer, Dhom Balkawadi
Project Division.Wai, Dist:- Satara) kindly permitted us for Visit of Dam. Er Prakash
Gaikwad guided us during Visit of Dam and showed us all Dam features.
Mr. Satish Taware sir (PRO, VPCOE) and Mr. Shasahank Dandvate helped us
in arranging Buses from Venkatesh Travels, Baramati with good drivers who took and
brought us back safely.
Our teachers Prof. Dilip G. Patil & Prof. Ms. S. B. Walke along with Mr. Vinit
Thombare (Technical assistant-Workshop), Mr. Kiran Taware (Assistant) took hard
efforts in planning and arranging this highly successful visit.
Students of T.E. Civil specially Bamane Eshwar R, & Gadade Vikram B, Kaldate
Abhijit S, Kamble Vishal V, Khalate Bharat S, Kudale Chaitanya M, Maske Umesh A,
Nagpure Akshay M, Narode Sharad B, Shingate Swapnil H (Class representative) and
some other students took the initiative & under the continuous guidance of our teachers,
made the visit a grand success.
Students left the college for visit on 6th September at 6.10 am and did breakfast on the
way. We reached Wai at 11.00 am. and then we moved towards ‘Dhom Balakwadi
Dam’ and reached at 12.00 PM.
DHOM - BALKAWADI DAM
DHOM BALKAWADI DAM
This dam is constructed across the river Krishna. Krishna river is one of the longest
rivers in central-southern India, about 1,300 kilometers (810 mi). flows through the
states Maharashtra , Karnataka , Andhra Pradesh and ends in bay.
SPECIFICATION:
 Opening date : 1996
 Completion date : 2002
 Owner(s) : Government of Maharashtra, India
 Type : Earth-fill Gravity
 Height : 65.10 m
 Length : 1211 m
 Volume : 6,335 km3 (1,520 cu mi)
 Impounds : Krishna river
 Reservoir Capacity : 331,100 km3 (79,400 cu mi)
 Surface area : 2,498 km2 (964 sq mi)
 Catchment area (Th ha) : 21.756
•
PURPOSE:
Irrigation - The construction of this dam was started in 1996. The major purpose
of this dam is the supply of water to the agriculture, industries, and for drinking.
•
Water supply is majorly done for Wai, Phaltan, Khandala, Bhor, Panchgani Mahabaleshwar and the surrounding villages on the bank of the dam. This dam
supplie’s water to agricultural land of the Wai, Koregaon, Satara , Javli and
Khandala talukas. The catchment area (42.77 km2) dams the Krishna River and
forms the Dhom Lake which is approximately 20 km (11 miles) in length.
Completed in 2002, it is one of the largest civil engineering projects
commissioned after Indian independence. The Dhom electricity project is run by
the Maharashtra State Electricity Board. Storage capacity of Dhom dam is 4.16
T.M.C
Hydroelectricity - The Dhom generates electricity of 4 MG from the basement
electricity house.
Hydraulic power plant-
Power House
Students carefully studied and observed the generation of electricity by turbines. The
Francis turbine is a reaction turbine, which means that the working fluid changes
pressure as it moves through the turbine, giving up its energy. Francis turbine requires
428 RPM to rotate.Unit power generation is about 3200 unit/hr. A casement is needed
to contain the water flow, The turbine is located between the high-pressure water
source and the low-pressure water exit, usually at the base of a dam(head 33m ± 10)
.The inlet is spiral shaped. Guide vanes direct the water tangentially to the turbine
wheel, known as a runner. This radial flow acts on the runner's vanes, causing the
runner to spin. The guide vanes (or wicket gate) may be adjustable to allow efficient
turbine operation for a range of water flow conditions.
Circumference of the inlet turbine pipe is about 72 inches. As the water moves
through the runner, its spinning radius decreases, further acting on the runner. For an
analogy, imagine swinging a ball on a string around in a circle; if the string is pulled
short, the ball spins faster due to the conservation of angular momentum. This property,
in addition to the water's pressure, helps Francis and other inward-flow turbines harness
water energy efficiently.
Penstock Carrying Water from Reservoir under high Pressure
Guide vane
The spillways were of Ooge Type. its length was of 41 m, Radial type of spillway gates
were used which were 3 in number and its size is of 20X20 m. There’s an energy
dissipater arrangement at the end spillway to avoid the erosion of the Bed.
Channel ahead of Spillway
Butterfly valve one of the fantabulous structure at the dam. The main principle of
butterfly valve is energy dissipation and reduction of erosion of rock. When water flows
from high head , there is varying of kinetic energy of water and due to this phenomenon
there is a possibility of erosion of rock The butterfly valve sprinkle’s water in all direction
with constant kinetic energy, it look’s like butterfly wings hence its called as butterfly
valve.
Butterfly Valve
There are three spillway gates through which water from the Reservoir is allowed to flow
to downstream.
Spillway Gates
These are mechanically operated radial gates. Design flood cumec: 1758 and cusec :
62084, Flood depth is about 0.625 m whereas Spillway length is about 41 m and
Spillway height is about 23 m.
VPCOE Staff with Er. Prakash Gaikwad
Er. Prakash Gaikwad Explaining Dam features and operations to students
Students at the entry of Dam Site.
After seeing all operations of Dam, we moved to Wai for Lunch. Er Prakash Gaikwad Sir
and his team has made good arrangement of Lunch for all of us in Wai. Then at the
end we visited Mahaganpati and Menavali Ghat for some time before starting backward
journey.
Students and Staff at Menavali Ghat on Krushna River near Wai
Students at Menavali Ghat on Krushna River near Wai
Then at 6 pm we left Wai to reach back to our VPCOE Campus. We reached in Campus
at 8.45 pm.
Regarding the visit students were extremely thankful to honorable principal Prof. Dr. S.B
Deosarkar, Er. Suren Hiray (The Executive Engineer, Dhom Balkawadi Project
Division.Wai, Dist:- Satara, Er. Pravin Ghorpade (Engineer from Irrigation Dept), Er
Prakash Gaikwad from Dhom-Balkawadi Dam Site), HOD Civil engineering department
Prof. G. N Narule, Prof. Dilip G Patil & Prof. Ms. S. B. Walke, Mr. Vinit Thombare, Mr.
Kiran Taware and student coordinators of visit.
List of Staff Members who visited Dhom- Balkawadi Dam Project:
1
2
3
4
Prof. Dilip. G. Patil
Prof. Ms. S. B. Walke
Mr. Vinit Thombare
Mr. Kiran Taware
List of Students who visited Dhom- Balkawadi Dam Project:
S.
S.
Roll
Roll
Name
No.
No.
N.
N.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
1335002
1335003
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1335005
1335006
1335007
1335008
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1335010
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1335020
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1335028
1335029
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1335034
1335035
1335036
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1335041
Ahire Ajay Santosh
Alte Rohini Subhash
Bamane Eshwar R
Bhagat Tushar Ashok
Bhakare Sonal Nandkumar
Bobade Abhijit Uttam
Bombatkar Anup Gajanan
Borkar Dnyaneshwar C
Chandgude Suraj Sopan
Charpe Mrunmayee D
Chate Nitin Hariram
Chinage Amit Ramesh
Degave Dhananjay D
Desai Priyanka Dipak
Deshmukh Vivek Nishikant
Divate Rohan Shivaji
Gadade Vikram Bhausaheb
Gavit Priyanka Ratilal
Ghate Aarti Suresh
Ghodake Vaibhav V
Ghodke Yogesh Sambhaji
Ghosalkar Aniket Pramod
Idhate Mahendra Balu
Ingle Shubhangi Shailesh
Jadhav Gaurav Madan
Jadhav Sagar Balaji
Jagtap Aparna Prakash
Kakade Rahul Rajendra
Kakade Vishal Dhananjay
Kaldate Abhijit Sunil
Kale Mahadeo Tukaram
Kamble Mangesh Maruti
Kamble Vishal Vishwanath
Kapse Praveen Ram
Kasar Aboli Duryodhan
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
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1335085
Name
Kasnale Shweta Ashok
Khalate Bharat Sudam
Khalate Suvarna Bhanudas
Khanwilkar Aditya S
Khanwilkar Vikram S
Kharjul Amol Bhagwan
Kudale Chaitanya Mukund
Lad Akash Vasant
Magar Suyog Rajendra
Manmath Baswraj Swami
Masal Ramesh Yashawant
Maske Subodh Bharatrao
Maske Umesh Aniruddha
Modake Rupesh Laxman
Nagpure Akshay Mohanrao
Nale Sagar Maruti
Narode Sharad Balasaheb
Nigade Ajinkya Balkrushna
Pande Pramod Narsingrao
Pawar Amruta Alias Padma A
Pawar Dayanand Baburao
Pawar Kishor Sudam
Pawar Prathamesh Vikas
Pawar Vaibhav Maruti
Pharate Akash Balasaheb
Pramod Pandit Shinde
Pund Jaydeep Rajnikant
Salunke Ganesh Bhagwat
Sathe Snehal Hanumant
Shaikh Amreentabassum K
Shinde Amarsinh Shankar
Shingate Swapnil Hanumant
Sweta Suresh Koli
Thalpate Abhijit Sanjay
Waikar Amit Sanjay
Waldode Nagesh Rajshekhar