Solid stack

Stack solids The solid content of a gas stream leaving a chimney or exhaust duct. 

The presence of asphaltenes, originating in the fuel, acts as a trap for vanadium, nickel, and sodium (which promote slagging and sulfur corrosion)-, these asphalthenes often contain sulfur compounds, which simply add to the contaminant load. Additionally, asphaltenes act as precursors to spherical stack solids (cenospheres), which are exhausted with the flue gases as stack emissions. 

The analogy drawn between -stacked solids and duplex DNA has provided a useful starting point for experiments to probe and understand DNA-medi-ated CT. As with the -stacked solids, the DNA base pair array can provide an effective medium for long range CT. Mechanistically, however, the differences between DNA and these solid state materials may be even more important to consider. Duplex DNA, as a molecular -stacked structure, undergoes dynamical motion in solution. The time-dependent and sequence-dependent structures that arise serve to modulate and gate CT. Indeed in probing DNA CT as a function of sequence and sequence-dependent structure, we may better understand mechanistically how CT proceeds and how DNA CT may be utilized. 

Wen T-L, Wang D, Chen M, Tu H, Lu Z, Zhang Z, Nie H, and Huang W. Material research for planar SOFC stack. Solid State Ionics 2002 148 513-519. 

N. Lahl et al. Aluminosilicate Glass Ceramics as Sealant in SOFC Stacks, Solid Oxide Fuel Cells Vol. VI, Electrochemical Society Proceedings Vol. 99-19, pp. 1057-1066. 

Fig. 1.6 Illustration of a planar-stack, solid-oxide fuel cell (SOFC), where an membrane-electrode assembly (MEA) is sandwiched between an interconnect structure that forms fuel and air channels. There is homogeneous chemical reaction within the flow channels, as well as heterogeneous cehmistry at the channel walls. There are also electrochemical reactions at the electrode interfaces of the channels. A counter-flow situation is illustrated here, but co-flow and cross-flow configurations are also common. Channel cross section dimensions are typically on the order of a millimeter.

Nichols, P. J., Raston, C. L., Steed, J. W., Engineering of porous 7C-stacked solids using mechanochemistry. Chem. Commun. 2001,1062-1063. 

In case of a normal spring selection by the manufacturer, the SRV can probably be reset 15% higher than nameplate set, but then the coils of the spring will be compressed more closely together during the resetting so that the spring may stack solid before full lift is achieved. 

There is a pressure drop through the pressure ports causing an unequal distribution of flow through the plate stack. Solids then begin to accumulate in the plates with the lowest pressure drop until plugging results. Gaskets often leak or rupture... 

Combustion (poor combustion causes boiler fouling, poor heat transfer and stack solid emission). 

MTp = stack solid mass-specific heat product (J/K)... 

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