Heat Flux Sensor With Minimized Impact On Boundary Conditions

"We propose to develop a heat flux sensor that can be used to estimate the temperature and heat flux on the far side of a wall as a function of time. The configuration of the sensor is specifically designed to minimize the sensor's impact on thetemperature and heat flux boundary conditions on the sensor's side of the wall, while allowing for both the capability of measuring very high heat fluxes and a high frequency response. Our sensor will employ components and techniques that are currentlybeing used to study time-resolved (15 kHz) and spatially-resolved (0.3 mm) localized heat transfer rates under a vapor bubble during boiling. Our heat flux sensor will allow the measurement of the heat flux on the far side of a wall. This type of devicewould improve the development and testing of lasers, explosives, or chemical reactions, since our sensor will provide more accurate knowledge of the processes occurring at the interior containment wall of the testing apparatus."