Autoignition of binary blends of n-butanol and n-heptane was studied in a rapid compression machine at an equivalence ratio of 0.4 and a compressed pressure of 20 bar with the compressed temperature varying from 700 K to 907 K. Within the temperature range covered in this study, no cool flame or negative temperature coefficient behavior was observed for neat n-butanol. With the presence of n-he...

Title of Document: Measurements of Soot Temperature in a Diffusion Flame Using a Digital Camera Jose Castillo Moreno, Master of Science, 2012 Directed by: Peter B. Sunderland, Associate Professor, Department of Fire Protection Engineering Temperatures were measured in a laminar axisymmetric diffusion flame with a digital camera. The camera was a Nikon D700, modified to remove the Infra-Red (IR)...

A physical model of a linear flame front spreading over a pine needle fuel bed was developed in our previous work. The model agrees well with the experimental data on rate of fire spread (ROS) for lower slope angles, while the ROS values are overestimated under higher slope angles. This is possibly due to the overestimate of the radiative heating or underestimate of the convective cooling, caus...

The temperature information is of great significance to the study of flame structure, soot distribution and combustion mechanism. It is also vital to combustion control. This paper presents the design, implementation and evaluation of a flame imaging system based on optical sectioning method to reconstruct the steady state temperature field of candlelight. A 3-D luminous object can be regarded ...

In this study, in-situ bulk polymerization was investigated for obtaining flame retardant polystyrene (PS). The halogenated and phosphoric compounds were used as flame retardant additives and Perkadox 30 was used as a synergist. The flammability of the PS was evaluated by thermogravimetric analyzer (TGA), limiting oxygen index (LOI) and UL-94 tests. The results show that polymerization process ...

Abstract In seawater desalination, the energy efficiency of practical processes is expressed in kWh_electricity or low-grade-heat per m 3 water produced, omitting embedded quality underlying their generation processes. To avoid thermodynamic misconceptions, it important to recognize both and quantity consumed. An unmerited quantitative apportionment can result inferior deployment desalination m...

The extinction of an envelope flame at the forward stagnation point of a liquid fuel droplet due to forced convection is numerically investigated. The droplet is oxidizing within an air stream at atmospheric pressure. Combustion is modeled using finite-rate chemical kinetics and a one-step overall reaction. The gas-phase solution is obtained using the quasi-steady equations of mass, momentum, s...