Explain in brief:
6
b)
a)
i) Primary power and secondary power. ii) Utilization factor and Diversity factor.
Discuss in brief the diversion canal power plants.
OR
Explain basic principle and working of pumped storage power plants.
2.
b) A run of river plant has 25 mW installed capacity. It has load factor of 25% (weekly) when operated as a base load plant. Calculate the discharge if head is 22 m and efficiency is 75%.
6
How optimum diameter for penstock is decided? Explain different methods. b)
3. a)
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7
4.
Calculate the water hammer pressure developed when a gate at the end of 2500 2.5 m diameter penstock carrying water is closed in 6 sec. The initial head on the penstock is 50 m. Given k = 2.1x10 N/m².p=1000kg/m. Assume Rigid pipe
m long
OR
What is water hammer? What are its ill effects? How these are avoided?
A penstock with an internal diameter of 1.4 m supplies water at a steady state head 180 m. There is a possibility of 20% increase in the pressure due to transient condition. The design stress and efficiency at the joint may be assumed to be 11.2 kN/cm² and 85% respectively. Calculate approximate wall thickness of the penstock required.
Explain step by step the method of hydraulic design of surge tank. A surge tank is to be design for a 4800 m long penstock of 3.5 m diameter carrying 40m³/s discharge and having friction factor 0.03 and head 98 m. Calculate the area of simple surge
tunk.
OR
6. a) Explain differential surge tank with suitable sketch.
b)
Suggest height of a surge tank (simple cylindrical) if its diameter is 6 m. The penstock is
600 m long, 2 m diameter and carries 6.28 cumees. Neglect friction. Assume F=0.03.
What is shocks dayu dede pacing of hers? How do you calculate the
velocity dough h
V
SECTION B
b) Describe dem imk
OR
State design considera ions for totakes of hydropower development.
b) Describe Run of river like with resch
Explain ebay with respect to its necessity, function location and design consideration
Define specific spood of a tartine gesta turbine for a hydel station if discharge is 94
cumes, head (Net)-150 m Over efficiency 95% and speed 200 rpm
OR
State the considerations that goats the decision of velocity, capacity and lining of a byde
30 Suggest and describe tatrine male le high head, low discharge type bydel power station
Describe briefly duce main dicens of surface power houses with a neat sketch Deseus asic principle, location and difficulties in tidal power development
OR
Desche Layouts of machine Fall transformer and valves in underground power house
What are the various -comotional sources of energy? Describe the development of
wind power in India