Performance Analysis of Air Preheater to Improve the Efficiency in 210 MW Thermal Power Station

The efficiency of boiler in 210mw thermal power station is greatly depending on the utilization of waste heat in the flue gas by air pre heater and economizer. The increasing in efficiency of 210mw boiler can be achieved by increasing the performance of air pre heater and economizer. To reduce the leakages in 210MW air pre heater and enhancing heat transfer rate by changing profile of air pre heater heating element surface will lead to increasing in performance of the air pre heater and economizer. In 210 MW north chennai thermal power station/stage-I notched flat profile and single seal with 12 sector air pre heaters is used as heat transfer. These are replaced by double undulated profile heating element and double seals with 24 sectors in air pre heaters. Hence heat loss in the air pre heater is minimized and the air pre heater absorbs additional heat from exhaust flue gas. The profile change in heating element and double seals arrangement air pre heater are to be analyzed. Based on the results the percentages of efficiency in air pre heater are to be calculated.