We have utilized a range of manufactured or commercial nanoparticulate materials, including surrogate carbon nano-PM along with combustion-generated carbonaceous (soot) nano-PM characteristic of environmental nano- PM (both indoor and outdoor) to investigate and compare their cytotoxic response in vitro with an immortalized human epithelial (lung model) cell line (A549). These have included nan...

CLINICAL CHEMISTRY, Vol. 18, No. 7, 1972 671 In the continuous-flow automated system described _____________ _ __ ______ here, we used components from several manufacturers, grouped to provide satisfactory performance at low cost. The IL Model 143 flame photometer is simple to maintain, the burner is mounted externally and is transparent, so that it can be inspected without interrupting operati...

Microgravity experiments were conducted in the 2.2-s drop-tower facility at the NASA Glenn Research Center to study the transient response of the burner-generated spherical diffusion flame caused by its initial displacement from the steady-state position. The experiment involved issuing H2/CH4/inert mixtures of constant fuel mass flow rates from a bronze, porous, 1.27-cm-diameter, spherical bur...

The effects of H2 enrichment on the propagation of laminar CH4–air triple flames in axisymmetric coflowing jets are numerically investigated. A comprehensive, time-dependent computational model, which employs a detailed description of chemistry and transport, is used to simulate the transient ignition and flame propagation phenomena. Flames are ignited in a jet-mixing layer far downstream of th...

The effect of temperature on soot formation in a laminar propane diffusion flame was investigated. The temperature of the flame on a Parker Wolf hard burner was varied by adjusting the inert nitrogen content in the oxidizer flow. Local soot aggregate properties, such as aggregate diameters and their number densities as well as soot volume fractions were determined using simultaneous laser light...

Despite the technology for wood biomass combustion being much more advantageous when compared to traditional burners, such as Stoker or fluidized burner, there has been scant research on topic of cyclone burners. The purpose this paper is review burner technology, which includes theory, design, and combustion, in terms chemistry properties biomass, emission related NOx CO, application co-firing...