Central tube effect

ECT - Effective Central Tubes - The ratio c-f total pile power output to the average power output of the ten most productive tubes. 

Nominal Reactivity - A measr-ed value for the effect on pile reactivity that a known amount of a given material would have if charged into the central tube of the unflattened reactor. 

Non-premixed flames can be generated in a variety of ways, as detailed in [PRU 13]. Here, we examine the influence of an acceleration fleld, followed by that of an electrical field, on a candle flame. Finally, we look at the effect of a magnetic field on a diffusion flame from a burner formed of two coaxial cylindrical tubes, with the central tube providing the fuel and the outer tube the oxidant. 

Effect of Downcomer Aeration. When only the central gas flows (No. 7 and No. 8 flows) were employed without downcomer aeration, the solids circulation rate depended primarily on the entrainment rate of the jets. The linear relationship for both bed materials (hollow epoxy and polyethylene) in Fig. 8 shows that the volumetric concentration of the solids inside the draft tube after acceleration (or the gas voidage) is approximately constant, independent of particle density. This can be readily realized by expressing the volumetric solid loading in the draft tube as follows ... 

At <10% market penetration, delivery costs from a central plant located some distance from the city are very high. During this period, local production will likely play an important role. Another alternative would be to utilize gaseous tube trailer delivery from nearby central hydrogen production facilities if such facilities exist near or in that urban area. This could be cost-effective if the ultimate tube trailer carrying capacity target of 1100 kg could be achieved. 

The target organs of chloroform toxicity in humans and animals are the central nervous system, liver, and kidneys. There is a great deal of similarity between chloroform-induced effects following inhalation and oral exposure. No studies were located regarding reproductive effects in humans after exposure to chloroform alone however, Bove et al. (1995) studied the effects of drinking-water consumption on birth outcomes and found that exposure to TTHM at levels >0.1 ppm resulted in reduced birth weight and size as well as an increased risk of oral cleft, central nervous system, and neural tube defects. Since the authors... 

An oscillated fuel flow was provided in the form of a central jet within the duct carrying the pilot stream. The dimensions of the tube carrying the oscillated flow implied that the mean velocity and equivalence ratio of the jet had to be larger than that of the pilot stream to enable the oscillation of at least 5% of the total fuel flow. An examination of the influence of the bulk mean velocities of the pilot stream and the central jet on the amplitude of oscillations in this flow arrangement showed that, for the present range of flow conditions, values of the bulk mean velocity of the pilot stream less than that of the annular flow had no effect on the amplitude of oscillations, although larger values led to a decrease in amplitude [20]. The amplitude was also insensitive to the bulk mean velocity of the oscillated jet for values up to 3.5 times... 

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