Application of novel temperature gauges to study the combustion of liquid gun propellants
Anwendung von neuartigen Temperaturmessgebern zur Untersuchung der Verbrennung von flüssigen Rohrwaffentreibmitteln
Novel temperature gauges, initially developed and tested for conventional solid gun propellant applications, are used and tested during the decomposition and comustion of the HAN-based liquid monopropellants NOS-365 and 1845 in an closed bomb at loading densities of 0.2 g/ccm employing hot wire ignition. The data taken with two different temperature gauge designs are compared to data taken with other spectroscopic methods. It is found that only the design with a light pipe bundle yields reliable results in the HAN-based liquid propellants. The other temperature gauge with an IR-transparent square rod is less reliable since condensed water layers form at its relatively large end surface and degrade the measurement.