Ph.D. thesis, Purdue University, 1966.
L. Burmeister and R. Schoenhals, Effect of pressure fluctuations on laminar film boiling. Progress m Heat and Mass Transfer, Vol. 2, p. Pergamon Press, Oxford ().Cited by: 4. 2. Plot of equation (53). (-p,-^) FIG. 4. Effect of subcooling of liquid on laminar film boiling heat transfer. Film boiling in laminar boundary-layer flow along a horizontal plate surface neglected, and the following simplified relation can thus be obtained ^ir^c^-u^ ^TtLpi/^J c^-Q Pr^ Let Nu = Sx/l-i, where a = ^/(rt,).Cited by: 6. Effect of pressure fluctuations on laminar film boiling. By L. C. Burmeister and R. J. Schoenhals. Abstract. Pressure fluctuations effect on laminar film boiling on vertical flat plate, discussing heat transfer calculation Topics: THERMODYNAMICS AND COMBUSTION Author: L. C. Burmeister and R. J. Schoenhals. Jordan investigated the laminar film boiling and transition boiling, and the region which separates had also been discussed. Sakurai et al. presented the pool film boiling on a horizontal cylinder with theoretical solutions. The analytical heat transfer model is based on laminar boundary theory including radiation effects.
Film Boiling • Beyond Point D the heater surface is completely covered by a continuous stable vapor film. • Point D, where the heat flux reaches a minimum is called the Leidenfrost point. • The presence of a vapor film between the heater surface and the liquid is responsible for the low heat transfer rates in the film boiling region. The channel mass flux and inlet pressure were kept constant at G = kg/m 2 s and P = 1 bar in order to isolate the effect of inlet subcooling on microchannel flow boiling behaviour. The saturation temperature of HFE at P = 1 bar is °C, as summarised in Table 1. Forced convection laminar film boiling. Forced convection laminar film boiling from a horizontal constant temperature plate for the cases of saturated and subcooled liquids is solved by liquid and vapor boundary layer equations by Cess and Sparrow (a, b). The result for saturated film boiling is presented below: where. Periodic pressure fluctuations appear starting x ∕ c = 0. 62, i.e. near the laminar separation of LSB. For 0. 7 pressure fluctuations increase in amplitude, after which they quickly lose their periodicity, reaching fully turbulent flow after x ∕ c = 0. 85, in agreement with the numerical observations in Fig.
Boiling is the process of turning a liquid at its saturation temperature into vapor by applying heat. A similar process occurs when the pressure applied to a hot liquid is reduced: this would normally be called flashing. Production of cavities in a cold liquid by the application . Journal of Pressure Vessel Technology; The Effect of Subcooled Liquid on Laminar Film Boiling E. M. Sparrow, E. M. Sparrow Heat-transfer results for film boiling in the presence of a subcooled liquid have been determined analytically for the case of the isothermal vertical plate. The two-phase flow and heat-transfer problem which arises. A commentary has been published: Closure to “Discussion of ‘The Effect of Subcooled Liquid on Laminar Film Boiling’” (, ASME J. Heat Transfer, 84, p. ) Standard View Views Icon Views. Closure to “Discussion of ‘The Effect of Subcooled Liquid on Laminar Film Boiling’” (, ASME J. Heat Transfer, 84, p. ).