Storable fluids

Table 2.1 lists the approximate percentages of the total milk supply used for various products in the United States and in nine major milk-producing countries. In such countries as New Zealand and Ireland, where per capita production of milk is high, most milk is used in storable manufactured products like butter, cheese, and nonfat dry milk. Where per capita production is low, as in the United States and the United Kingdom, greater amounts are used as fluid milk and creams. 

Elasticity is one of the most characteristic properties of polymer fluids. To date, this parameter has been largely overlooked. Thus, the elastic material function may lead, under high shear-rates (e.g. injection) to a loss of energy and to material defects. A measure of the storable elastic energy is the storage modulus G (G" = loss modulus). The ratio G"/G indicates whether a body is mainly elastic or viscous. 

The purpose of this chapter is to present the LAD performance experiments carried out in room temperature liquids. Bubble point and reseal pressure tests for a 325x2300, 450 X 2750, and 510 x 3600 Dutch Twill screen are conducted in storable liquids, methanol, acetone, IPA, water, and binary methanol/water mixtures of various methanol concentrations. First screen pore diameters are estimated based on analysis from scanning electron microscopy and historical data. Experimental results are used to compare methods for determining effective pore diameter. Next, contact angles are measured for both pure and binary mixture fluids using a modified version of the Sessile Drop technique. Then, the equation of state analysis from Neumann and Good (1979) is used to determine the critical Zisman surface tension for stainless steel LAD screens, which... 

Hence, a contact angle correction factor is only necessary for storable liquids. Contact angles were measured for common fluids such as water, IPA, methanol, and acetone in Chapter 4. To the author s knowledge, there is no contact angle data available for toxic storable propellants such as NTO and MMH. Except for water, all storable liquids studied in the current work are fully wetting with negligible contact angles. 

---