Flame Holding of Fuel-Air Counter Flow Combustor

Abstract

Heating System including this newly developed combustor serves to supply warm air and moisture to control atmosphere in greenhouse to grow trees, vegetables, flowers etc. We developed the high performance combustor adapted fuel-air counter flow. It is confirmed experimentally that the combustor attained to save 18% of fuel running cost, compared with current fuel-air conical supply combustor. The combusting flow go through along the periphery of inner wall of combustor and exhausts from the annular exit port provided at the apposite side of fuel inlet. The counter airflow nozzle is designed for higher heat transfer efficiency and stable flame. The flow structure for holding the flame is investigated.