Outlet temperature field measurement for small annular combustor by gas analysis
In order to explore the applications of outlet temperature field measurement for a small annular combustor by gas analysis,the design of multipoint non-mixed water-cooled gas sampling probe was introduced for adaptation of a small annular combustor,two five-point non-mixed water-cooled gas sampling probes and double platinum rhodium thermocouple were fixed respectively on a displacement mechanism at the combustor outlet;swinging 180° with displacement mechanism,bidirectional data measurements were achieved;the gas temperature was calculated by measuring carbon dioxide(CO2),carbon monoxide(CO)and unburned hydrocarbons(UHC).Test results showed that the combustor outlet temperature fields measured by gas analysis method and thermocouple method were consistent basically,the relative deviation of them was within 2％;at the same time,gas analysis method was proven to be dominant in measuring high gas temperature from aeroengine combustor with high upper limit of temperature measurement and high precision.
outlet temperature fieldsmall annular combustorgas analysiswater-cooled gas sampling probedisplacement mechanismbidirectional data measurement
NETL
NSTL
万方数据
