HYDROPOWER PROJECTS

The projects listed give details of the designs for projects handled by the Director of the Company during tenure with Central Water and Power Commission CWPC.
 

LOWER SILERU HYDROELECTRIC PROJECT

Hydraulic and structural designs including preparation of specification and construction drawings for head race tunnel (9.75 m. diameter), surge tank (24.5 m. diameter), restricted orifice type, penstock tunnels (3 of 6 m.diameter), tunnel portal valve house, with 55 tonne crane capacity. Penstocks with specials, support piers, and anchors (three lines of 5.5 m. diameter), pressure shaft (3 lines of 5 m. diameter), and semi-underground power house (with draft tube in the form of galleries), 150 m. long, 50 meters wide and 44 meters high, housing 6 units of 115 MW each. The tail race pool is 30 m. deep at the power house and handles 450 cum of discharge.

 
 
 

KADAMPARAI PUMPED STORAGE HYDROELECTRIC PROJECT

The project is located in Tamilnadu. The designs handled are underground power house with 4 units of 100 MW reversible turbines with double surge system. Intake with gate shaft and trash rack structure in the forebay and tail bay, 7 m. diameter head race and 20 m. diameter tail race surge tanks with fixed wheel gate hoist system and with manifolds, 3 lines of steel lined 4.75 meter pen-stock shaft branching with a sickle type of bifurcation and under-ground power house 100 m. long, 95 m. wide, and 50 m. deep cable and ventilation shafts with switchyard foundation, access tunnel, and roads.

 
 
 

KADANA HYDROELECTRIC PROJECT

Dam power house with 4 units 60 MW reversible turbines of diagonal flow type. Other features are (i) RCC bell mouth outside the face of the dam with trash rack screening arrangements; (ii) steel penstock in the body of masonry dam; buried and surface penstock of 6.5 m. diameter without expansion joints; (iii) 100 meter long, 55 meter wide, deep power house with circular wells as substructure below machine hall and cellular type of divide wall; (iv) 50 meter deep tail race draft tube and trash rack structure; and (v) reregulation pondage to handle 565 cumecs reversible flow and 36,700 cumecs flood flow.  
 
 

SUBARNAREKHA HYDROELECTRIC PROJECT

The first hydroelectric project in Bihar state, the project comprises Two single unit power houses of 65 MW each comprising the following features: power canal; non-pressure tunnels; masonry and earth dam; forebays; 4 m. diameter penstock; power house; and chute spillway.

 
 
 

KALINADI HYDROELECTRIC PROJECT

Six units of 135 MW semi-underground power house with (i) 3 lines of concrete lined pressure shafts; (ii) 3 lines of steel lined pressure shaft with high strength steel liner and sickle type bifurcation; and (iii) power house 100 m. long, 25 m. wide, and 30 m. high with transformer and switchyard on the draft tube gallery RCC duct.

 
 
 

UMIAM HYDROELECTRIC PROJECT STAGE-2

Design of civil works with additional features such as free flow tunnel, power canal with chute spillway and forebay; concrete weir with diversion intake and free flow tunnel; rigid frame bridges on power canal; buried penstock and power house with ancillary civil works such as transformer and switchyard.

 
 
 

UMTRU EXTENSION

Design and development of construction drawings for penstock and power house, including obtaining concurrence to the drawings from Montreal Engineering Company, Canada.

 
 
 

UMIAM HYDROELECTRIC PROJECT STAGE-1

Detailed hydraulic and structural designs for intake structure with gate shafts, steel and concrete lined pressure tunnels, cut and cover conduits, RCC lined surge shaft, surface penstocks with supports and anchors, surface power house (4 units of 9 MW each at 175 m. head) with tail race, transformer and switchyard.

 
 
 

NEW BHIRA TUNNEL

Concrete pressure tunnel and penstock with specials such as expansion joints, rocker cum roller supports, man- holes, bifurcations, bends, ring girder supports and anchors. These were replacement works to the then existing water conductor system to a power house feeding100 MW power station supplying electricity to Bombay city.

 

BHRAMAPUTRA VALLEY

Investigation including hydrological observations and topographical surveys (tributaries and main river of maximum width 26 miles) for water resources development, with special emphasis on flood control, sedimentation, navigation, embankment and drainage schemes.  
 
 

HYDROLOGICAL OBSERVATIONS FOR WESTERN GHATS

Establishment of office, study of topo sheets, selection and setting up of hydrological observation sites on rivers of Western Ghats in a reach of about 1,000 km from Trivandrum to Mahad (100 km from Bombay). The assignment included development of drawings and report.  
 

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