...Andrew T. Bouma; Jaichander Swaminathan; John H. Lienhard, V Energy cost contributes a large portion of the overall cost of desalinated water. Improving the energy efficiency of desalination plants is therefore a primary design goal. However, accurately evaluating and comparing the energy...

... effects inducing some forced convection thus enhancing the heat transfer and efficiency in the liquid film. The stirring due to the droplet impact has minimum effect inducing convection on this system [ 33 ]; however, it has been reported in different works the thermocapillary effect induced by surface...

... tip wall position. Trends in averaged heat transfer varied linearly with tip wall distance, while pressure losses followed a nonlinear trend, resulting in an optimum tip wall distance with respect to heat transfer efficiency. Effect of the W e l on the velocity vector field...

... 2010 25 08 2010 03 11 2010 03 11 2010 computational fluid dynamics convection differential equations diffusion fractals laminar flow mass transfer rotational flow shear flow cone-and-plate device rotating disk heat and mass transfer efficiency Cone...

... with irreversibility and should not be viewed as having the same connotation for heat exchangers as the isentropic efficiency has for many components. Furthermore, it is shown that entropy minimization should not be a design objective in heat exchanger design. A new performance measure, entropy flux, is introduced...

... temperature and flow rate as well as the reference temperatures are investigated, and the resulting solidification and melting times, energy efficiencies, and exergy efficiencies are documented. Using ANSYS GAMBIT and FLUENT 6.0 softwares, all geometries are created, and the appropriate boundary and initial...

...Ahmad Fakheri The concept of heat exchanger efficiency is extended to the heat exchanger networks. General expressions that can be used for determining the overall efficiency and effectiveness of heat exchangers connected in series regardless of the heat exchanger type have been presented. A simple...

... such as the oval and lenticular ones, the shaped tube efficiency is equal to the fin efficiency. The shaped tube efficiencies for oval and lenticular shaped tubes ( χ ) are plotted against Biot number in Figs. 8a 8b , respectively. All...

...Ahmad Fakheri This paper provides the solution to the problem of defining thermal efficiency for heat exchangers based on the second law of thermodynamics. It is shown that corresponding to each actual heat exchanger, there is an ideal heat exchanger that is a balanced counter-flow heat exchanger...