...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...

... is to determine if a maximum CHF has been reached and what parameters influence the efficiency of the heat transfer process. Increasing the amount of dissipated heat by increasing the volumetric flux of the cooling fluid has the consequence of reducing the efficiency of the spray as shown by experimental...

... 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. Similar conclusions followed from the TLC experiments ( 20 ) that averages...

... 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...

... heat exchangers efficiency heat exchanger efficiency entropy minimization exergy exergy maximization The concept of efficiency is used to assess the performance of components and systems. Efficiency is a comparison between the actual (real) and ideal (best) performances. The ideal behavior...

... 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...

... et al. ( 13 ) analyzed the performance of shaped tubes similar to fins attached to a circular tube, they have defined the efficiency for these tubes as 26 χ ≡ q q max = T ¯ 0 − T ∞ T b − T ∞ where q...

...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...