B.E. (Instrumentation & Control)
POWER PLANT INSTRUMENTATION
(2003 Course) (406270) (Elective – II) (Sem. – II)
Time : 3 Hours
Max. Marks : 100
Instructions to the candidates:
1) Answer three questions from Section – I and three questions from Secetion – II.
2) Answers to the two sections should be written in separate books.
3) Neat diagrams must be drawn wherever necessary.
4) Figures to the right indicate full marks.
5) Assume suitable data, if necessary.
SECTION – I
What are various ways of generation of Electricity? Explain in brief.
What is a grid? Explain the concept of Regional & National grid in detail.
a) A steam power station of 100 MW capacity uses coal of calorific value of 6400 kcal/kg. The thermal efficiency of the station is 30% and electrical generation efficiency is 92%. Determine the coal required per hour when plant is running at full load.
b) What are different types of systems & components which are used in thermal power plant?
a) What is coal preparation? What are the advantages of coal preparation.
b) Explain open cycle gas turbine power plant neat sketch. Also state its advantages & disadvantages.
a) What is differential expansion in turbine blades? How it controlled? Explain with neat schematic.
b) Explain coal handling process with neat Instrumentation?
Draw & explain condenser and feed tank level control system in a power plant.
SECTION – II
a) What are the different advantages and disadvantages of hydroelectric power plants?
b) Draw and explain different types of surge tanks with necessary instrumentation. For level measurement. What are the functions of surge tanks?
a) How energy can be released from Nuclear Power Plant? What are various types of Nuclear reactions? Explain.
b) Explain following w.r.t. Nuclear Power Plant :
i) Moderator. ii) Reflector.
iii) Coolants. iv) Control Rods.
a) How efficiency of a Power Plant can be measured? What are various methods to improve the efficiency of the power plant?
b) Why it is essential to measure the dissolved oxygen in feed water of a Power plant? Explain the same with neat schematic.
Write Notes on (Any Two) :
a) Energy Audit.
b) Automation of Conservation.
c) Boiler Regulations.
a) What is Geothermal energy? What are various forms for geothermal energy? Explain in brief the classification of the same.
b) What is a Tidal Power? What are factors affecting the suitability of tidal power plant.
a) Write advantages & disadvantages of wind power plant.
b) Explain Power generation with Hydrogen cell.