ANALISIS KEGAGALAN PIPA AIR HEATER PADA BOILER CIRCULATING
FLUIDIZED BED DI PLTU 2X8MW PT.BUKIT ASAM UNIT PELABUHAN TARAHAN.
Pada CFB Boiler dalam backpass terdapat pipa Air Heater yang sering mengalami sejumlah masalah yang timbul setelah pengoperasian. Salah satunya ialah terjadi penipisan atau kebocoran pada pipa Air Heater akibat overheating. Terdapat tujuan yaitu, Menganalisis faktor penyebab kegagalan material pecahnya pipa Air Heater. Dan Mengetahui mekanisme kegagalan material pecahnya pipa Air Heater. Dan kesimpulan yang di dapat Pada saat Boiler Unit 1 PLTU PT. Bukit Asam Unit Pelabuhan Tarahan, melakukan Overhoul Selama 20 hari kerja, kemungkinan menyebkan tube primary air heatermengalami kontaminasi udara dari luar sehingga dapat menyebabkan korosi, pada saat pegujian metalografi di IT PLN penulis dapat melihat terbentuknya banyak porous (lubang hitam) pada material, dan hal ini dapat menyebabkan korosi pada material tersebut.

ANALYSIS OF WATER HEATER PIPE FAILURE ON BOILER CIRCULATING
FLUIDIZED BED AT 2X8MW POWER PLANT PT. BUKIT ASAM UNIT PORT TARAHAN. In CFB Boiler in the backpass there is an Air Heater pipe that often experiences a number of problems that arise after operation. One of them is that there is thinning or leakage in the Air Heater pipe due to overheating. There is a purpose, namely, Analyzing the causative factors of material failure of the rupture of the Air Heaterpipe. And Know the mechanism of failure of the water heater pipe rupture material. And the conclusions that can be at the time of Boiler Unit 1 PLTU PT. Bukit Asam Unit Pelabuhan Tarahan, doing Overhoul For 20 working days, the possibility of causing the primary air heater tubeundergoes air contamination from the outside so that it can cause corrosion, at the time ometallographic testing in IT PLN writers can see the formation of many porous (black holes) in the material, and this can cause corrosion in the material.