Subcooling, degree

The simulations are further conducted under the experimental conditions of Inada et al. (1985). In their experiments, 4.0 mm water droplets impact on a heated platinum surface at a temperature up to 420 °C. The subcooling degree... 

Step 1 Pyrometer measurements must be taken from the inlet (steam) and outlet (condensate) of the steam trap to identify if the trap valve fails to close when steam is present. The temperature difference between inlet and outlet of the steam trap indicates the subcooled degree of condensate. For example, 0 °F subcooled condensate indicates the trap valve sticks in a full open position. 

The variable orifice of the expansion valve can be replaced, in small systems, by a long thin tube. This is a non-modulating device and has certain limitations, but will give reasonably effective control over a wide range of conditions if correctly selected and applied. Mass flow is a function of pressure difference and the degree of liquid subcooling on entry. 

Degree of subcooling at channel inlet, expressed as an enthalpy deficit, Btu/lb... 

The degree of subcooling, which depends on the substance, but is strongly influenced by the two points above. 

Hydrate induction times from water are approximately proportional to the displacement from equilibrium conditions (e.g., subcooling). Other variables, which affect nudeation include guest size and composition, geometry, surface area, water contaminants and history, the degree of agitation or turbulence. 

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