A review of mass transfer measurements using naphthalene sublimation

Application of Mass/Heat Transfer Analogy in the Investigation of Convective Heat Transfer in Stationary and Rotating Minichannels

“…However, the similarity of the fluid properties expressed by the equal Schmidt and Prandtl numbers is very difficult to obtain. Nevertheless, the research data (Goldstein & Cho, 1995) show a good agreement of the mass transfer experimental results with heat transfer results for different Sc and Pr numbers. Based on equations (5) and (6) …”

Annular impinging jet with recirculation zone expanded by acoustic excitation

“…This was described exhaustively by Goldstein and Cho [45]; the authors' present variant, which originates from work by Korger and K í ek [46], was described recently [40]. The local mass transfer coefficient is calculated from the sublimation depth Δx as (3) where n is the density of solid naphthalene, ( n =1175 kg/m 3 at 20 °C), R naph is the gas constant of naphthalene vapour (R naph =64.87 J/(kg K)), T w is the absolute temperature of the exposed surface, Δx is net local sublimation depth, p sat is the saturated vapor pressure of naphthalene at the surface temperature (calculated from the empirical equation by Ambrose et al according to a recommendation [45]), and Δt is the run duration. The extraneous sublimation due to natural convection has been evaluated by an auxiliary experiment--the resultant correction of the h m --value was 0.0023 m/s.…”

“…Non-dimensional expression of mass transfer coefficient is the Sherwood number, Sh=h m D o /D naph , where D naph is the mass diffusion coefficient of naphthalene vapor in air, calculated for measured temperature of the jet, and from barometric pressure [45]. Based on the heat/mass transfer analogy [45], the mass transfer data can be converted to the corresponding heat transfer data by the following relation…”

“…The present mass transfer data are processed by using n=0.4, which is a commonly accepted value for turbulent impinging jets [1 and 45]. The Sc is calculated for measured air temperature from empirical equation [45]; the typical value is 2.28 at 25 °C.…”

“…Based on the heat/mass transfer analogy [45], the mass transfer data can be converted to the corresponding heat transfer data by the following relation…”