3. When it comes to thermal power generation, what are the key challenges and considerations in terms of minimizing heat losses during the various stages of the power generation process? How do you ensure efficient heat transfer and mitigate losses in the boiler, condenser, and other relevant components?

Question

Accepted Answer

Key challenges in minimizing heat losses in thermal power generation and ensuring efficient heat transfer.

Key challenges include heat losses in the boiler, condenser, and other components leading to decreased efficiency and increased operational costs.
Considerations include proper insulation of components, regular maintenance to prevent leaks, and optimizing combustion processes.
Efficient heat transfer can be achieved through the use of high-quality materials, proper sizing of components, and effective heat recovery systems.
Mitigating losses involves monitoring and controlling temperature and pressure levels, implementing heat exchangers, and utilizing advanced control systems.
Examples of strategies include using economizers to preheat feedwater, installing air preheaters to recover heat from flue gases, and implementing cogeneration systems to maximize energy output.

Accepted Answer

Answer: The efficiency of a boiler is determined by calculating the heat output divided by the heat input. The heat output is the steam generated, which is measured in terms of enthalpy, and the heat input is the chemical energy in the fuel. The efficiency can be calculated using the formula: Boiler Efficiency = (Steam Flow × (Steam Enthalpy - Feedwater Enthalpy)) / Fuel Input × Fuel Calorific Value.

Top Adani Power Assistant Manager interview questions & answers

Popular interview questions of Assistant Manager

Top HR questions asked in Adani Power Assistant Manager