Combined Cycle Power Plant คือ

��ê�� ¶֧ ��ü�Ե��ѧ�ҹ俿�� ( �� ѧ�ҹ�� ) ��Ѻ��ѧ�ҹ��͹ ( ��ҫ��͹, �ͧ��͹ �� ͹��)

�ҧ��͡㹡��ѧ�ҹ

1. �� Ե��ѧ�ҹ俿�� ѧ�ҹ俿�Һҧ��ǹ价� ��
2. �� Ե��ѧ�ҹ俿�� м�Ե��ѧ�ҹ��͹�ҡ��ѹ
3. ��Ե俿�Ң��ͧ ��ǹӾ�ѧ�ҹ��͹ ( Exhaust Heat )��͡�Ҩҡ�к��Ե俿�� (Turbine Generator)
��Ӥ��͹ (Steam or Direct Heat to process ) �ա��˹�� ¡�� к� COGENERATION ��º��º��ѧ�ҹẺ�� Ẻ COGENERATION Ẻ�� ( CONVENTIONAL )

Ẻ��ê�� ( COGENERATION )

��º��º��Է��ҾẺ�� Ẻ COGENERATION

	Ẻ�� ( CONVENTIONAL )
	System Eff.	=( 100 + 170 ) / ( 244 + 200 )
	= 61 %

	Ẻ COGENERATION
	System Eff.	= ( 100 + 170 ) / ( 357 )
	= 76 %

��ѡ��÷ӧҹ�ͧ GAS TURBINE

�ҡ�ȶ١�ٴ��ѧ��ͧ�Ѵ�ҡ�� ( Compressor )

�ҡ�ȹ�鹶١��͹��ѧ��ͧ�� ( Combustion chamber )

��ͧ�� ԧ ( Natural Gas ) �ж١�մ��Ҽ��Ѻ�ҡ�� Шش��Դ

��ҫ��͹�ҡ�� Т��µ�Ǽ�ҹ��ѧ��ͧ�ѧ�ѹ��ҫ ��ѧ�ѹ��ҫ��ع

᡹�ͧ��ͧ�ѧ�ѹ��ҫ�е��仢Ѻ��ͧ��俿�� (Generator ) ��ͼ�Ե��俿��

��ǹ��ҫ��͹��¨ҡ�ѧ�ѹ��ҫ��س��Ի��ҳ 450-550 ͧ�� ҫ��͹�� ö��͹ - � Waste Heat Boiler ��ͼ�Ե�͹�� ѹ��
- ��µç ( Direct Heat ) ��㹡�кǹ��ü�Ե
��ѡ��÷ӧҹ�ͧ Turbines

�ǤԴ��Ѻ��û��ء��͹�µç

�ǤԴ��Ѻ��û��ء�� Fluid Heating �� Steam

�ǤԴ��Ѻ��û��ء�� Steam �� Chiller

�ǤԴ��Ѻ��û��ء�� Steam Turbines

Typical Steam Application

COMBINED CYCLE Combined Cycle ��͡�ù��͹�ӷ��ҡ Waste Heat Boiler ��Ե ��俿�� ¡ѧ�ѹ�͹�� ( Steam Turbine )
�ա��˹�觡�͹��й��͹�ӷ��Ե��ҹ㹡�кǹ��ü�Ե ( Process ) �ѧ�� Combined Cycle �м�Ե��俿��٧��
��º��ͻ��ҳ��ҹ�� ѹ BACK PRESSURE STEAM TURBINE ��ѡ�� :

��ѹ��ԧ�ж١�� Boiler ��ͼ�Ե�͹�� ѹ�٧ ( �Ҩ�٧�֧ 100 �� )

��͹�ӹ�� µ�Ǽ�ҹ��ͧ�ѧ�ѹ�͹�� ( Steam Turbine )

�ѧ�ѹ�͹�� ع�ѺGenerator ��ͼ�Ե��俿��

�͹�ӷ��ҹ�ѧ�ѹ�͹�� ١��͡�ҡ��ǡѧ�ѹ ��դ��ѹ ��ҳ 3 - 20 ��

�͹�ӹ��ж١��㹡�кǹ��ü�Ե�� EXTRACTION STEAM TURBINE ��ѡ�� :

Extraction Turbine �е�ҧ�ҡ Back Pressure Turbine �ç��͹�Ӻҧ��ǹ�١��͡��㹪�ǧ��ҧ�ͧ�ѧ�ѹ

�͹�ӷ��͡�ҹ��դ��ѹ��¢�Ҵ��͡ ��Ѻ�ش㴨ش˹�觢ͧ Process

�͹�ӷ��ͨж١��µ�Ǽ�ҹ�ѧ�ѹ ��ͼ�Ե俿�Ҩ��դ��ѹ�� ֧�͡�ҡ�ѧ�ѹ ��þԨ�ó��͡�к� COGENERATION

��Ҵ�ͧ�к�

��Դ�ͧ��ԧ - ��ҫ��ҵ��ԧ��ҧ��觵��к� Cogeneration

�ѵ��ǹ��ҧ��͹��俿�ҷ��ç�ҹ��ͧ�� ҳ 2 : 1

��ع�ҧ��ɰ��ʵ��