This study presents an imaging-based deep learning tool to measure the fuel regression rate in a 2D slab burner experiment for hybrid rocket fuels. The is designed verify mechanistic models of reacting boundary layer combustion rockets by measurement rates. A DSLR camera with high intensity flash used capture images throughout burn and are then find calculate rate. U-net convolutional neural ne...

In Florida, natural communities require periodic fires for maintenance of their ecological integrity. Because of public concerns, wildfires can no longer be allowed to perform this mandatory function so prescribed burning is essential to manage these plant and animal communities. We discuss the importance of prescribed fire in Florida, outline a history of the state’s interest and involvement i...

• The stability limits of a linear multi-burner combustor were investigated. In premixed mode the well reproduced an annular behaviour. Transitions in flame shape associated with movement pockets OH and CH 2 O. non-premixed presented pattern extinction/reignition close to LBO. Stability agreement more complex geometries, unlike single burners. behaviour lean blow-off (LBO) mechanism arrangement...

Spatial distributions of temperature, major species, and OH mole fractions under moderate or intense low-oxygen-dilution (MILD) conditions in a laminar-jet-in-hot-coflow configuration were measured using spontaneous Raman laser-induced-fluorescence methods. A preheated mixture 18% CH4/82% N2 at 1100 K was used as fuel, while the products laminar, flat, premixed burner-stabilized flame with an e...

Heat transfer is of crucial importance to understand the conversion kinetics and the behavior during combustion of fuels such as plastics particles. In this work, the heat transfer onto single plastic resin particles (5x7 mm) by flames and a pulsed laser was studied by recording time resolved series of images with a high speed CCD (charge coupled device) camera. Images in the visible spectrum w...

farming organic vegetable and crops have grown as a market desiring commodity. weed control in farms has been costly and laborous and it has always been hard to achieve a proper weeding. a few chemicals are commonly applied in organic farming. thermal weeding with flame burners seems a good solution; however, it has its own drawbacks, such as; damaging the main crops, low performance, being inf...