This paper deals with thermodynamic optimization of supercritical CO2 recompression and partial cooling cycles operating at cycle maximum temperature 680°C pressure 250 bar. The primary goal to investigate the effects variation in heat sink (ambient air temperature), mass split fraction (X), minimum (Pmin) on thermal efficiency power cycles. Response surface method (RSM) is adopted create a sec...

This study explores the use of teaching-learning-based optimization (TLBO) algorithm for thermodynamic optimization of a plate-fin heat exchanger. Minimizing the total number of entropy generation units for specific heat duty requirement under given space restrictions is considered as objective function. Based on the applications heat exchanger length, fin frequency, numbers of fin layers, lanc...

exergy analysis and response surface methodology (rsm) is applied to reduce the exergy loss and improve energy and exergy efficiency of acetic acid production plant. exergy analysis is run as a thermodynamic tool to assess exergy loss in reactor and towers of acetic acid production process. the process is simulated in aspen plus(v.8.4) simulator and the necessary thermodynamics data for calcula...

In recent years there has been considerable interest in the structures, energies and thermodynamics of(GaN)4 clusters and it is the subject of many experimental and theoretical studies because of theirfundamental importance in chemical and physical process. All calculation of this study is carried outby Gaussian 98. Geometry optimization for (GaN)4 nanocluster are be fulfilled at B3LYP, B1LYPan...

The field is a relatively recently established subfield of ergodic theory, and has significant input from the two well-established areas of symbolic dynamics and Lagrangian dynamics. The large-scale picture of the field is that one is interested in optimizing potential functions over the (typically highly complex) class of invariant measures for a dynamical system. Tools that have been employed...