Experiments of Combustion Vibration in the Pilot Furnace for Fossil Power Plant under Combustion Test (I)

화력 발전용 시험연소로의 연소시험 중의 연소진동 실험(I)

This paper presents results of test for combustion vibration in the pilot furnace for fossil power plant under combustion test. We measured static pressure variation in the pilot furnace together with air and fuel flow. From test results, it shows that vibration magnitude is affected by air and fuel flow. Also, a finite element analysis using a commercial S/W is performed to calculate acoustic mode of the pilot furnace. These results show that dominant frequency occurred is related to acoustic natural frequency of furnace. After this, it needs to be studied the relation between dominant frequency of combustion vibration and air flow rate.