• Asish kumar sahoo
• A. Behera
• Tanisha Ipsita Hota
• P. Das
• G. Barik

Energy audit involves studying energy consumption processes to find better paths for energy saving. For this study, Kottagudem Thermal Power Station, Stage VII-1 X 800 MW Coal-based thermal power plant, a supercritical boiler, was selected. In this project, an energy audit was conducted on a boiler to identify various losses. One such loss is heat loss due to dry flue gas, which acts as a barrier to heat transfer in the economizer section, located in the boiler's second pass. This loss prevents proper preheating of water, potentially affecting both boiler efficiency and fuel consumption. Various parameters were measured in this study, including coal consumption, steam pressure, coal calorific value, flue gas temperature, and proximate analysis of coal. The primary objective was to reduce heat loss due to dry flue gases by modifying the existing system of steam-based soot blowers. Currently, steam is used as the working medium to clean the flue gases surrounding the economizer coils. However, this method is insufficient in reducing heat loss and is costly. Therefore, modification in both the working medium and the machine (soot blower) is necessary. In this modification, the medium is changed from steam to hot air to efficiently clean the flue gases in the economizer coils and improve heat transfer rates. Additionally, the soot blower lance and speed are upgraded. Now that air is the medium, which is cheap and readily available, there is no need to use steam. This change saves energy and coal, impacting both boiler and overall plant efficiency. However, this process may not be economical for existing power plants due to significant changes required in the boiler section. Therefore, it is highly recommended for upcoming thermal power plants

Thermal Power Plant, Energy Audit, Boiler Efficiency, Soot Blowers, Heat Losses.

"PERFORMANCE ANALYSIS AND ENERGY AUDIT ON BOILER LOSSES IN THERMAL POWER PLANT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.g203-g213, August-2022, Available :http://www.jetir.org/papers/JETIR2208627.pdf

"PERFORMANCE ANALYSIS AND ENERGY AUDIT ON BOILER LOSSES IN THERMAL POWER PLANT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. ppg203-g213, August-2022, Available at : http://www.jetir.org/papers/JETIR2208627.pdf