Power plant Engineering — Summer 2025

Draw detailed layout of modern coal based thermal power plant

State and explain unique features of High pressure. boilers.

Explain working principle of solar photovoltaic cell and list merits and demerits of photovoltaic solar energy conversion.

State necessity of feed water treatment in thermal power plants.

State objective of condenser and its advantages in thermal power plant.

An open cycle gas turbine plant uses heavy oil as fuel. The maximum pressure and temperature in the cycle are 5 bar & 650ᵒC. The temperature and pressure of air entering into the compressor are 27ᵒC and 1 bar. Assuming isentropic efficiencies of compressor and turbine to be 80% and 85% respectively, find the thermal efficiency of the cycle. The overall A:Fratio is 60:1. Take Cp for air and gas as 1 Kj/Kg ᵒC and Ɣ for air and gas as 1.4. if the plant consume 5 Kg of fule/sec then find the power generating capacity of the plant.

Calculate the efficiency and specific work output of a simple gas turbine plant operating on Brayton cycle. The maximum and minimum temperatures are 1000K and 288 Krespectively. The pressure ratio is 6. The isentropic efficiencies of the compressor and turbine are 85% and 90% respectively. If unit consumes tonnes of oil per hour and has CV 46500 KJ per Kg. Find the power generated. The mechanical efficiency is 90% and the generation efficiency is 85%.

State safety measures required for nuclear power plants.

Give comparison between forced and induce draught.

Draw detailed layout and explain important components of hydro- electric power plant

Give classification of wind power plants.

Give name of the components of a nuclear power plant and explain any three in brief.

Explain need of cogeneration, list its type and explain any one in brief with neat sketch.1

Define impulse and reaction turbine.

List operating variable effecting thermal efficiency of an actual open cycle gas turbine. Explain any one of them with supporting chart or sketches.

Explain construction and working of BWR with neat sketch also list merit and demerit of it.

List characteristics of good coal handling plant & draw schematic of inplant handling of coal.

Define compounding of steam turbine and explain why it is essential.

Explain following terms. I) Average Load ii) Load factor iii) Demand iv) Diversity factor v) Plant capacity factor vi) Plant use factor vii) Maximum demand.

State advantages of gas turbine over steam turbine.

Compare horizontal and vertical axis wind turbine.

With neat sketch explain construction and working of CANDU reactor.

Define load duration curves and how it is useful?

List type of nuclear waste disposal method and discuss any one in brief.

Prove that the pressure ratio for maximum work is function of limiting temperature ratio.