TY - GEN
T1 - Quantification of heat flux from a reacting thermite spray
AU - Nixon, Eric
AU - Pantoya, Michelle
AU - Prentice, Daniel
PY - 2009
Y1 - 2009
N2 - Characterizing the combustion behaviors of energetic materials requires diagnostic tools that are often not readily or commercially available. For example, a jet of thermite spray provides a high temperature and pressure reaction that can also be highly corrosive and promote undesirable conditions for the survivability of any sensor. Developing a diagnostic to quantify heat flux from a thermite spray is the objective of this study. Quick response sensors such as thin film heat flux sensors can not survive the harsh conditions of the spray, but more rugged sensors lack the response time for the resolution desired. A sensor that will allow for adequate response time while surviving the entire test duration was constructed. The sensor outputs interior temperatures of the probes at known locations and utilizes an inverse heat conduction code to calculate heat flux values. The details of this device are discussed and illustrated. Temperature and heat flux measurements of various thermite spray conditions are reported. Results indicate that this newly developed energetic material heat flux sensor provides quantitative data with good repeatability.
AB - Characterizing the combustion behaviors of energetic materials requires diagnostic tools that are often not readily or commercially available. For example, a jet of thermite spray provides a high temperature and pressure reaction that can also be highly corrosive and promote undesirable conditions for the survivability of any sensor. Developing a diagnostic to quantify heat flux from a thermite spray is the objective of this study. Quick response sensors such as thin film heat flux sensors can not survive the harsh conditions of the spray, but more rugged sensors lack the response time for the resolution desired. A sensor that will allow for adequate response time while surviving the entire test duration was constructed. The sensor outputs interior temperatures of the probes at known locations and utilizes an inverse heat conduction code to calculate heat flux values. The details of this device are discussed and illustrated. Temperature and heat flux measurements of various thermite spray conditions are reported. Results indicate that this newly developed energetic material heat flux sensor provides quantitative data with good repeatability.
UR - http://www.scopus.com/inward/record.url?scp=77952795113&partnerID=8YFLogxK
U2 - 10.1115/HT2009-88219
DO - 10.1115/HT2009-88219
M3 - Conference contribution
AN - SCOPUS:77952795113
SN - 9780791843581
T3 - Proceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
SP - 73
EP - 80
BT - Proceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
Y2 - 19 July 2009 through 23 July 2009
ER -