SUMMARY

            M. Faza Ghani Zaki, Mechanical Engineering , Faculty of Engineering,Lambung Mangkurat University, January 28, 2019, Heat TransferEffectiveness Analysis to the Secondary Air Heater in PLTU Asam-Asam With ASME PTC 4.0 and ASME PTC 4.3 Method, Chairman: Abdul Ghofur.

          Air heaters are one of the auxiliary equipment that are very important in the use of heat transfer in a boiler, where this equipment serves to heat the air for the combustion by using heat from the residual hot gas from the combustion before sending it to the chimney. To maintain the performance of air heater, then the analysis of the effectiveness of heat transfer on air heater is carried out with a performance test using the ASME PTC 4.0 and ASME PTC 4.3 methods. On commissioning data, SAH unit 1 has an efficiency in amount of 58.69%. However, from the result of a research analysis of heat transfer in Secondary Air Heater unit 1 on March 2 2018, the efficiency was counted in amount of 38.96%, there has been a decrease of 19,73%, this was caused by slagging on the surface of the element in SAH and leakage on SAH pipes. subsequently, repairs are carried out by doing soot blowing and perform welding on the leaking pipe using the TIG (Tungsten Inert Gas) welding technique. Afterwards the analysis is carried out with a performance test was held on March 21, 2018 and got an increase of 11.34% to 50.3%.