In the study, a potentially feasible low-NOx combustion technology, based on self-sustained preheating of pulverized coal, is proposed. A 2 MW novel test rig was employed, and bituminous coal used in experiment. internal fluidized bed combustor (IFBC) as chamber for followed by air staging chamber. Preheating characteristics IFBC temperature distribution primary zone were discussed. Next, effec...

Nonreacting swirling flow behavior through a novel double swirl burner has been investigated in this paper using Detached Eddy Simulation (DES) calculations and experimental measurements. The effect of mixing both the inner jet (primary air or swirler) annular (secondary outer on structure analyzed. Moreover, pressure losses field characteristics have at different inlet mass rates combustor dia...

Protein crystallization screens frequently yield salt crystals as well as protein crystals. A simple method for determining whether a crystal is composed of salt or macromolecules is suggested. A drop containing one or more crystals is transferred to a glass cover slip and the cover slip is then passed through the flame of a Bunsen burner. Macromolecule crystals are destroyed by this treatment,...

Lerner, called “The Bunsen Burner” by his high school classmates, was a scientist’s scientist. Born in 1921, he later took Bunsen as his middle name. He earned his M.D. and Ph.D. degrees from the University of Minnesota, both in 1945. In 1952, he moved to Oregon with his friend and colleague Thomas B. Fitzpatrick, who was the newly appointed head of the University of Oregon Medical School’s Div...

This chapter describes common laboratory procedures that can reduce the risk of culture contaminations (sepsis), collectively referred as "aseptic technique." Two major strategies of aseptic work are described: using a Bunsen burner and a laminar flow hood. Both methods are presented in the form of general protocols applicable to a variety of laboratory tasks such as pipetting and dispensing al...

The self-excited thermoacoustic instability in a two-dimensional Rijke-type burner with center-stabilized premixed methane–air flame is numerically studied. simulation considers the reacting flow, dynamics, and radiation model to investigate important physical processes. A finite volume-based approach used simulate flows under both laminar turbulent flow conditions. Chemical reaction modeling c...

abstract: this work presents a numerical study to investigate the heat transfer characteristics of a 2-d rectangular composite porous radiant burner (cprb). in the construction of porous burner, the porous layer is considered to be composite consisting of upstream and downstream layers with equal thickness but with different physical and radiative properties. in the present work, a two dimensio...