Modeling Combined Heat Transfer in the Operating Area of the High Power Heating Test Facility

Bauman Moscow State Technical University, 105005 Moscow, Russia

^* Corresponding author: lexiusb@gmail.com

Abstract

The operating temperatures for the current aerospace heat shield materials exceed 2000 K [1], which makes their experimental testing a complex and expensive issue requiring specialized testing facilities capable to obtain the temperature level in question. In most cases, the thermal tests of the materials samples and thermal shield elements are conducted on the radiative heating test facilities. Generally, these facilities use tungsten halogen lamps (THL) [2, 3]. However, maximal operating temperatures for such type facilities do not exceed 1500 K due to the tungsten-halogen cycle disruption. The main challenge is to comply with the bulbs thermal conditions, which must remain below 1270 K [1]. This paper outlines the layout of the working area of the THL radiative heating facility, where the test specimen temperature is increased to 2100 K due to the compressed air flow over the bulbs, which for a considerable part solves the problem of the thermal behavior simulation.