Improving a Power Plant
Andrew's company bought an old power plant which is running
a simple Brayton cycle without regeneration for years. Modifications
are needed to increase the power generation and thermal efficiency.
Several suggestions are given. Andrew is given the task to compare all the plans.
What is known:
- The conditions for the simple Brayton cycle:
Compression ratio: 8
Compressor inlet pressure: 100 kPa
Minimum temperature: 300 K
Maximum temperature: 1300 K
- Plan 1: Use regeneration. The effectiveness of the regenerator is 0.8
- Plan 2: Two-stage intercooling, reheating, and regeneration with the same temperature limit and compression ratio.