Experiments canister

SIMULATION AND EXPERIMENT RESULTS FOR ADSORPTION AND DESORPTION IN CANISTER OF AN ORVR SYSTEM... 

Fig. 5. The comparison of weight change in canister between experiment and simulation during adsorption and desorption operation.

The validity of the model is tested against the experiment. A ISOOcc canister, which is produced by UNICK Ltd. in Korea, is used for model validation experiment. In the case of adsorption, 2.4//min butane and 2.4//min N2 as a carrier gas simultaneously enter the canister and 2.1//min air flows into canister with a reverse direction during desorption. These are the same conditions as the products feasibility test of UNICK Ltd. The comparison between the simulation and experiment showed the validity of our model as in Fig. 5. The amount of fuel gas in the canister can be predicted with reasonable accuracy. Thus, the developed model is shown to be effective to simulate the behavior of adsorption/desorption of actual ORVR system. 

The ORVR system is an important subsystem which reduces the contamination of evaporative fuel gas at gas station during the fueling. In this paper, a simulation model of adsoiption and desorption of evaporative fuel gas in canister of ORVR system is developed. From the comparison between the simulations and experiments, the validity of the developed model is verified and the dynamics can be predicted. This PDE model can be used to design the canister of ORVR system effectively for diverse climate and operating conditions. 

The next canister had a similar label, indicating about the same amount of EA 1729, expressed to a tenth of a milligram. The remaining canisters, perhaps a dozen or more, looked just like the first two, presumably with similar contents. For a moment, I considered indulging the temptation to remove a very small amount, and save it for some future experiment. However, I quickly dismissed this idea as being a good way to get in trouble, and not worth the risk. In addition, I knew it was wrong another rather important consideration. So I replaced the top, re-fastened the hasp and thereafter dismissed the dmm and its contents from my mind. 

This project placed encapsulated spent fuel elements from an experimental AEG reactor into storage holes drilled into the floor of the mine located in a salt bed. Valuable experimental information was obtained about the interaction between the waste form and the salt in which the waste was emplaced. It was in fact this experiment, conducted in 1968, which revealed that inclusions of moisture, or brine, in the salt beds have a tendency to migrate up a thermal gradient towards a heat source placed in the salt. Quantities of brine were measured as migrating to the deposited waste canisters and the interaction of this brine with the canis-tered material was observed. 

Nuclear waste glasses are complex mixtures of more than 30 elements, usually prepared by methods quite different than those used commercially to produce plate glass, for example. Canisters of glass (1-ft-dia x 6-ft-tall) have been prepared by direct furnace melting of a mixture of the waste oxides and an appropriate glass frit. The present experiment simulated this procedure on the laboratory scale. 

Massachusetts General Hospital in 1845. The first patient came out of anesthesia too soon, and Wells s discovery was not fully understood or appreciated. Wells continued his experiments with anesthetics and later became addicted to the anesthetic chloroform. Sadly, he committed suicide as a result of his chloroform addiction. Though nitrous oxide was not appreciated at its first public hospital demonstration, it is still widely used today as an anesthetic, particularly in combination with other volatile anesthetics during surgeries. Likewise, nitrous-oxide use as a recreational drug has continued from the early nitrous-oxide capers to the present day, with the use of whipping-cream-propellant whippets and nitrous-oxide balloons and canisters. 

The most important perceptual-motor effects of respirators are on vision and speech intelligibility. It is common experience that respirators restrict the visual field, depending not only on the eyepiece shape, size and eye-relief (distance from eye to eyepiece), but also on intrusion of filter canisters and other components into the visual field. Respirators can also impair visual acuity if the eyepieces are not well-designed or become misted. 

But unlike the San Francisco experiments in which supposedly harmless bacteria were used, the Ben Lomond carried canisters of disease. The pattern of the Scottish tests, code-named Operations Cauldron and Hesperus, was similar to those carried out in the... 

Da is the apparent diffusion coefficient of the solute, t is the contact time. For small non-reactive solutes in water Da is about lO " mVs. For a 3 year contact time a penetration depth of about 12 cm is reached. Somewhat larger penetration distances were actually found in a field experiment lasting 3.5 years (Birgersson and Neretnieks 1990). For a 1000 year contact time (A damaged canister could leak for a very... 

The work presented here is being performed in the framework of FEBEX (Full-scale Engineered Barriers Experiment in Crystalline Host Rock), which is a project for the study of the near field for a HLW repository in crystalline rock according to the Spanish concept the waste canisters are surrounded by a clay barrier constructed from... 

Abstract The bentonite layer, which surrounds the canisters in a nuclear waste repository deep down in rock, experiences an initial drying and a resaturation from the outer rock side. These complex processes interact and a key question is the degree of initial drying and the time it takes to resaturate the bentonite. It is shown that the highly non-linear coupled equations may, when formulated in a special way, be linearized with a loss of accuracy of some 10% only. The paper presents an analytical solution for the linearized case. The solution involves two key parameters only, a time scale and thermodiffusive parameter a. The largest drying at the canister wall and the resaturation are obtained from a single set of curves with a dimensionless time and a as parameter. 

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