The studies involve carrying out possible measurements to determine boiler efficiency by indirect method as
well as the heat and mass balance computations to estimate the useful heat and to assess operating
The typical scope of the work covers
Measuring Oxygen, Carbon Mono-Oxide & Temperature Contents in flue gas at Air Preheater/Economizer outlet
Measuring Oxygen Contents in flue gas at outlet of APH & inlet of ID Fan.
Noting down surface temperature and area for the system (up to APH outlet)
Computing surface heat loss for the system
Analyzing heat loss through unburnt contents in ash based on inhouse data
Computing Combustion Efficiency of the thermopac, based on the inhouse fuel properties
Estimating air ingress in Air Preheater, Bag Filter / Electrostatic Precipitator (ESP)
Assessing the performance and suggesting ways for improvement, as applicable
Submitting the report
A team of one engineer is deputed to carry out the studies and furnishing the report. The field visit is typically
for 5 to 6 hours; during which up to 4 measurements can be carried out depending upon initial preparations,
conditions of motors and cabling systems and support from the plant team.