TY - GEN
T1 - Characterization and evaluation of high energy hydrocarbon additives for paraffin-fuel hybrid rockets
AU - Jaffe, Richard L.
AU - Karabeyoglu, Arif
AU - Evans, Brian
AU - Zilliac, Gregory G.
AU - Sherburn, Michael S.
PY - 2013
Y1 - 2013
N2 - Highly strained hydrocarbons called ivyanes are evaluated as a potential additive to boost the burn rate and Isp for liquefying paraffin hybrid rockets. Ivyanes, which consist of cyclopropane rings bonded together, were first prepared in 2011 and have promise as a High Energy Density Material (HEDM) for propulsion and combustion applications. Differential Scanning Calorimetry (DSC) measurements were carried out on samples of ivyane and an ivyane-paraffin blend to measure phase changes and thermal stability. Quantum chemistry calculations were carried out using the G3MP2//B3LYP method to predict heats of formation and combustion for gas phase ivyanes. For validation purposes, calculations were also carried out for normal alkanes. Chemical equilibrium analysis was used to estimate the performance of ivyanes relative to paraffin for typical rocket engine scenarios. In addition, thermochemical properties of some plausible chemically modified ivyanes were modeled determine if they would improve rocket engine performance.
AB - Highly strained hydrocarbons called ivyanes are evaluated as a potential additive to boost the burn rate and Isp for liquefying paraffin hybrid rockets. Ivyanes, which consist of cyclopropane rings bonded together, were first prepared in 2011 and have promise as a High Energy Density Material (HEDM) for propulsion and combustion applications. Differential Scanning Calorimetry (DSC) measurements were carried out on samples of ivyane and an ivyane-paraffin blend to measure phase changes and thermal stability. Quantum chemistry calculations were carried out using the G3MP2//B3LYP method to predict heats of formation and combustion for gas phase ivyanes. For validation purposes, calculations were also carried out for normal alkanes. Chemical equilibrium analysis was used to estimate the performance of ivyanes relative to paraffin for typical rocket engine scenarios. In addition, thermochemical properties of some plausible chemically modified ivyanes were modeled determine if they would improve rocket engine performance.
UR - http://www.scopus.com/inward/record.url?scp=84883704348&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9781624102226
T3 - 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference
BT - 49th AIAA/ASME/SAE/ASEE Joint PropulsionConference
T2 - 49th AIAA/ASME/SAE/ASEE Joint PropulsionConference
Y2 - 14 July 2013 through 17 July 2013
ER -