Method and apparatus for measuring the distribution of heat flux and heat transfer coefficients on the surface of a cooled component used in a high temperature environment

An apparatus for determine heat flux on a surface of a component, comprising:

• one or more temperature measuring devices attached to a predetermined surface of the component for measuring the temperature of the predetermined surface at the location of each temperature measuring device;
• a heater attached to a preselected surface of the component;
• a means for supplying coolant of predetermined characteristics to the component;
• a means for measuring the temperature of the coolant supplied to the component;
• a means for applying a plurality of predetermined amounts of heating to the component by way of the heater;
• a means for recording the temperature of the coolant and the temperature of the surface of the component at the location of each temperature measuring device for each predetermined amount of heating;
• and
• a means for deriving heat flux calibration data for each temperature measuring device from the amount of heating applied to the surface, the temperature of the coolant, and the temperature of the surface to calibrate each said temperature measuring device so that temperature indicated by each said temperature measuring device and temperature of coolant applied to said component define heat flux at the location of said temperature measuring device.

An apparatus for determining the heat flux at one or more locations on a surface of a component in a high temperature environment, comprising:

• a means for applying coolant of predetermined characteristics to the component;
• a means for measuring the temperature at one or more locations on a predetermined surface of the component when it is operated in a high temperature environment;
• and
• means for determining the heat flux at the one or more locations on the component from derived heat flux calibration data related to said predetermined characteristics of said coolant and the output of the temperature measuring means.

An apparatus for determining the heat transfer coefficient for one or more locations on a surface of a component in a high temperature environment, comprising:

• a means for applying coolant of predetermined characteristics to the component;
• a means for measuring the temperature at one or more locations on a predetermined surface of the component when it is operated in a high temperature environment;
• and
• a means for determining the heat transfer coefficient for the one or more locations from derived heat flux calibration data related to said predetermined characteristics of said coolants and the output of the temperature measuring means.

A method for determining the heat flux at one or more locations on a surface of a component in a high temperature environment, comprising:

• applying coolant of predetermined characteristics to the component;
• measuring the temperature at one or more locations on a predetermined surface of the component when it is operated in a high temperature environment;
• and
• determining the heat flux at the one or more locations on the component from derived heat flux calibration data related to said predetermined characteristics of said coolant and the results of the temperature measurement step.

A method for determining the heat transfer coefficient at one or more locations on a surface of a component in a high temperature environment, comprising:

• applying coolant of predetermined characteristics to the component;
• measuring the temperature at one or more locations on a predetermined surface of the component when it is operated in a high temperature environment;
• and
• determining the heat transfer coefficient for the one or more locations from derived heat flux calibration data related to said predetermined characteristics of said coolant and the results of the temperature measurement step.

A method for determining heat flux on a predetermined surface of a component, comprising the steps of:

• applying coolant having predetermined characteristics to a preselected surface of the component;
• applying a plurality of predetermined amounts of heat to the predetermined surface of the component while coolant having the predetermined characteristics is being applied to the component;
• measuring the temperature of the coolant and the temperature of the predetermined surface of the component for each predetermined amount of heat;
• and
• deriving heat flux calibration date from the predetermined amount of heat being applied to the component, the measured temperature of the coolant, and the measured temperature of the predetermined surface so that temperature measured from the predetermined surface and said coolant define heat flux at the predetermined surface.