Water capacity

The specifications set the maximum vol % of solvent that may be added to the cylinder shell (measured by its water capacity). The volume of solvent also varies with the capacity of the cylinder. Cylinders in the 90—92% porosity range with a capacity above 9.1 kg of water may contain a maximum acetone charge of 43.4%, whereas those with 9.1 kg or less water capacity may contain up to 41.8 vol %. The first category of cylinders are normally referred to as welding cylinders and the latter as small tanks (those with 0.28 and 1.12 m acetylene capacity). 

Desiccants can lose water capacity and drying efficiency by taking up moisture during storage. They should therefore be analy2ed before use. If necessary, the materials should be reactivated (regenerated) before putting them in service. 

Because the system likely is nonisothermal, the analysis of a closed-desiccant system requites knowledge of the temperature of the desiccant as well as the dew point (ice point) or water concentration (partial pressure) specification. Indeed, the whole system may undergo periodic temperature transients that may compHcate the analysis. Eor example, in dual-pane windows the desiccant temperature is approximately the average of the indoor and outdoor temperatures after a night of cooling. However, after a day in the sun, the desiccant temperature becomes much warmer than the outdoor temperature. When the sun sets, the outdoor pane cools quickly while the desiccant is still quite warm. The appropriate desiccant for such an appHcation must have sufficient water capacity and produce satisfactory dew points at the highest temperatures experienced by the desiccant. 

For inner packagings, the quantity contained in receptacle with a water capacity of 30 ml. For outer packagings, the sum of the water capacities of all the inner packagings contained must not exceed 1 litre. 

Withdrawn) 1984 AMD 4 Transportable gas containers. Part 3 Seamless aluminium alloy gas containers above 0.5 litre water capacity and up to 300 bar charged pressure at 15°C (AMD 6320) dated 31 January 1991. Withdrawn, superseded by BS EN 1975 2000 and BS 5045-8 2000... 

Figure 56. Water capacity for standard cyclones, after Afterbum.

Qni = Flead at best efficiency point on pump curve, ft = Viscous liquid capacitv, GPM Q = Water capacity, GPM S =. Suction static head, ft, or height of liquid (static) above ( + ) or below ( —) the center line of the pump on suction side, ft, or,... 

Nylon 12 is produced in a similar way to nylon 6 by the ring opening polymerization of laurolactam. The polymer has a lower water capacity than nylon 6 due to its higher hydrophobic properties. The polymeriza-... 

Part 2 Steel containers up to 450 liters water capacity with welded seams... 

Assume water capacity of system Assume ambient temperature of 10°C Assume system maximum flow temperature of 120°C Assume system minimum return temperature of 65°C Increase in volume from 10°C to 65°C (999.7 - 980.5)... 

Organic fouling of DI resins. Loss of treated water capacity Anion leakage... 

As far as grass growth is concerned, the most important source of water is that available to the roots, and this is known as the available water capacity (AWC). The remainder is unavailable and while this is highest in heavy clays and clay loams, these soils also have the highest AWC. The AWC of soils is improved by an increase in their organic matter content, which improves the soil s capacity to absorb and hold water and also benefits soil structure. 

Thus, extensive intermolecular hydrogen bonding is possible between cellulose and water, enhancing the water capacity of a cotton towel. 

SOL AWC (mm/mm) Available water capacity of the soil layer. The available water in the soil is calculated by subtracting the water content at the permanent wilting point from that at field capacity SOL AWC = FC - WP. 

A new desiccant formulation was prepared from a mixture of submicron-sized silica gel and molecular sieves to achieve the best combination of large water capacity, rapid moisture adsorption and easy regenerability. The formulation also tolerates the presence of VOCs and smokes. Commercial NaX and silica gel were crushed and mixed in the proportion of 1 2 and wash coated on a monolith for testing. The same test cell shown in Fig. 12.7-2 was used. The airflow to the saturator was adjusted to obtain the desired humidity in the feed air. Humidity sensors located at the flow cell inlet and outlet, were used to... 

Are containers fitted with a fixed tube liquid level gauge at 85% of water capacity ... 

At this stage no definite answer can be given about the date and required capacity, but it is generally accepted that by the end of the century, Israel will have to develop 500 to 700 million cubic meters of additional water capacity. Of this 100-200 million cubic meters would probably have to be supplied by desalting. At least a part of the required capacity will be obtained by desalting brackish waters which can not be used directly for agriculture. 

Diethyl Ether. Drying with a zeolite. Put 500 ml of diethyl ether and 50-100 g of freshly roasted zeolite of Grade NaA or CaX into a one-litre flask provided with a stopper and a calcium chloride tube filled with roasted calcium chloride. The water capacity of the zeolite and its roasting temperature are indicated on the label. It is recommended to hold the ether over the zeolite about two days. 

A prototype vessel was built and installed in the Big Lake field in mid-1977. With the above equations, this vessel has a design water capacity of 48,000 B/D (7631 m3/d). This rate is 150% of the desired throughput of 32,000 B/D (5088 m3/d). Initial water throughput was approximately 25,000 B/D (3975 m3/d). Figs. 3 and 4 display the results of several tests run at that time to determine effectiveness of this design. 

Molecular sieve, 5A 225 Air and light gas analysis H2, 02, N2, (CH4, CO, NO, SFe co-elute) Synthetic calcium aluminosilicate (zeolite), having an effective pore diameter of 0.5 nm, C02 is adsorbed strongly 5A usually gives the best results of all synthetic zeolites should be activated before use and used above critical adsorption temperature 21.6% (mass/mass) water capacity... 

Molecular sieve, 13X 200 Same as 5A, but with C,-C4, alkanes, alkenes, and alkynes being separated as well Sodium aluminosilicate (zeolite), having a larger pore size than 0.5 nm, thus producing lower retention times and less resolution 28.6% (mass/mass) water capacity... 

Molecular sieve, 4A 200 Light permanent gases Sodium aluminosilicate (zeolite) 22% (mass/mass) water capacity retention characteristics differ from 5A due to smaller pore size... 

Rapid filter papers with high water capacity favor the separation of large quantities of material, but because of greater diffusion are less favorable for a neat separation of neighboring fractions. Thick papers call for high current, which generates a large quantity of heat. The... 

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