Bottoming Cycle of Cogeneration

Cogeneration is the process of producing electricity and useful thermal energy from a single fuel source. The bottoming cycle of cogeneration refers to the part of the process where low-grade waste heat is utilized for power generation.

Power Generation

The correct answer is option B, power generation. In the bottoming cycle of cogeneration, the waste heat from the primary energy conversion process, such as a gas turbine or internal combustion engine, is used to generate additional power through a secondary cycle. This cycle typically involves a steam turbine or Organic Rankine Cycle (ORC) system, which uses the waste heat to generate additional electricity.

Feed Water Heating

While feed water heating is a common application of waste heat recovery, it is not the primary purpose of the bottoming cycle of cogeneration. Feed water heating involves using waste heat to preheat the water that is fed into a steam generator, which reduces the amount of fuel needed to produce steam. While this process can be a part of cogeneration, it is not the primary focus of the bottoming cycle.

Processing

Waste heat can also be utilized for various processing applications, such as drying, distillation, or chemical reactions. However, this is not the primary purpose of the bottoming cycle of cogeneration, which is focused on power generation.

Conclusion

In summary, the bottoming cycle of cogeneration utilizes waste heat for power generation through a secondary cycle, typically involving a steam turbine or ORC system. While feed water heating and processing can also be applications of waste heat recovery, they are not the primary focus of the bottoming cycle.

In the bottoming cycle of cogeneration, low grade waste heat is used for

ans power generation