HEAT TRANSFER ON THE COMBUSTION CHAMBER OF A WATER TUBE TYPE BOILER WITH MULTIPLE BURNERS

다중 버너를 채택한 수관식 산업용 보일러 연소실의 열전달 특성

Operating medium or large scale industrial boilers in partial load condition, the burner should undergo the off-design points resulting in poor exhaust gas characteristics. To obtain the stable turn down performance, two or more burners can be used for the industrial boiler. In case multiple burners are adopted, the heat transfer can be enhanced by arranging the burners properly. In the present study, numerical simulations have been conducted for the combustion chamber of a 2 t/h class industrial boiler in order to clarify the heat transfer characteristics at the combustion chamber.