Studies 361 power density

The developed theory of two-phase laminar flow with a distinct interface which is based on a one-dimensional approximation, takes into account the major features of the process the inertia, gravity, surface tension and friction forces and leads to the physically realistic pattern of a laminar flow in a heated micro-channel. This allows one to use the present theory to study the regimes of flow as well as optimizing a cooling system of electronic devices with high power densities. 

The frequency effects are studied in the cylindrical geometry (R = 0.08 m, L = 0.027 m) at a constant power of 25 W, which corresponds to a volume power density 46 mW cm . The pressure is 120 mTorr with 45% SiHa and 55% H2. It is found that the RF voltage at this power scales with the frequency as Vrfv p = C, with C a constant. Because the induced displacement current increases with the... 

Usually, the use of hydrogen peroxide in conjunction with ultrasound is beneficial only till an optimum loading [65-67]. The optimum value will be dependent on the nature of the chemical reactions and the operating conditions in terms of power density/operating frequency (these decide the rate of generation of the free radicals) and laboratory scale studies are essential to establish this optimum for the specific application in question. Literature reports may not necessarily give correct solutions (for optimum concentration) even if matching is done with respect to the... 

---