Differentiate between proximate analysis and ultimate analysis of coal. What do you understand by weathering of coal?
What is draft? Why induced draft system is seldom used? Why does modern system use balanced draft system?
Why secondary air are introduced in the secondary furnace of two-stage venture furnace?
Differentiate between direct contact condenser and surface condenser. Mention uses of each type.
What is cogeneration? When cogeneration should be considered?
Name different NOxNO_xNOx reduction techniques. Mention the advantages and disadvantages of selective catalytic reduction technique of NOxNO_xNOx reduction.
What is the purpose of circulating water system in steam power plant? Explain closed loop circulating water system.
What is draft? Differentiate between forced draft and balanced draft system. Mention the advantages and disadvantages of these systems.
What are the factors to be considered for coal storage?
How in a coal fired power plant dust particle size affects dust collectors efficiency?
Why in steam power plant boiler makeup water is necessary and this water should be treated?
A condenser that handles 382 kg/sec of 90% steam quality at 0.08 bar, as well as 46 kg/sec of 45°C drain water from the feed water heater. Fresh cooling water is available at 20°C. Calculate the number of tubes required, cooling water flow rate, inner tube diameter and power required for cooling water flow rate. Given, tube outside diameter = 22mm, each tube length = 15m, two pass. Cooling water velocity = 2m/s. Overall heat transfer coefficient = 2 kW/m²-K. Terminal temperature difference = 3°C. Pressure drop in water boxes = 12.8cm H₂O, Pressure drop in tubes = 0.3cm water/cm.
How sulfur dioxides are extracted from coal based thermal power plants?
What is draft? What are the different types of draft losses?
What is cogeneration? When this process is used? Give example.