Open AccessTHERMAL LOSSES EVALUATION IN 660 MW COAL-FIRED POWER PLANT USING INDIRECT EFFICIENCY METHOD
Author(s) -
Muhammad Rizaldi Zaman,
Nazaruddin Sinaga
Publication year - 2021
Publication title -
jurnal sains dan teknologi reaksi/jurnal sains dan teknologi reaksi
Language(s) - English
Resource type - Journals
eISSN - 2549-1202
pISSN - 1693-248X
DOI - 10.30811/jstr.v19i01.2263
Subject(s) - boiler (water heating) , engineering , thermal efficiency , coal , combustion , waste management , power station , process engineering , project commissioning , thermal power station , nuclear engineering , environmental science , electrical engineering , chemistry , organic chemistry , publishing , political science , law
Boilers are one of the main equipment in the PLTU apart from turbines and generators. Each year there must be a difference in the actual boiler efficiency value with the conditions during commissioning. Periodically, boiler performance evaluations are carried out in order to identify losses from several factors. In this study, the method used for evaluation is the energy balance method. During the experiment, the standard test guide (ASME PTC - 4) was used. The boiler under test has a capacity of 660 MW. Evaluation is done by comparing the boiler efficiency value at the time of commissioning with the latest performance tests. From the results of performance testing, it is known that the decrease in boiler efficiency when compared with the commissioning results from 86.92% to 82.625%. The reduction in boiler efficiency is due to an increase in heat loss due to dry gas, hydrogen content in coal, and incomplete combustion.Keywords: boiler, efficiency, evaluation, reduction, performance