List of Articles Geometric Optimization

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  1 - Computational fluid dynamics analysis and geometric optimization of solar chimney power plants by using of genetic algorithm
  Amir Karami Davood Toghraie
  In this paper, a multi-objective optimization method is implemented by using of genetic algorithm techniques in order to determine optimum configuration of solar chimney power plant. The objective function which is simultaneously considered in the analysis is output pow More

  In this paper, a multi-objective optimization method is implemented by using of genetic algorithm techniques in order to determine optimum configuration of solar chimney power plant. The objective function which is simultaneously considered in the analysis is output power of the plant. Output power of the system is maximized. Design parameters of the considered plant include collector radius (Rc), collector height (Hc), chimney height (Ht), chimney radius (Rt) and heat flux ( ). The multi-objective optimization results show that there are a strong positive correlation between the chimney height and the output power, as well as a negative correlation between the solar collector radius and the output power. Also, it was concluded that, output power of the plant could be considerably increased with increasing solar chimney height while increasing collector radius could slightly reduce output power This study may be useful for the preliminary estimation of power plant performance and the power-regulating strategy option for solar chimney turbines. Manuscript profile
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  2 - Geometrical optimization of stepped spillway models
  Amin Rostami Ravari Habib Musavi Jahromi
  Stepped spillways are consist of some steps, which started from top crest of weirs to the down stream of spillways. These structures is used now because of their efficiency in dissipating energy of flow, and their benefits in economical aspects. This kind of spillways a More

  Stepped spillways are consist of some steps, which started from top crest of weirs to the down stream of spillways. These structures is used now because of their efficiency in dissipating energy of flow, and their benefits in economical aspects. This kind of spillways are also used in agriculture because of air entrance along them and natural purification of water. This study was carried out to find a mathematical model for estimating the relative dissipation of energy by making 10 physical models of stepped spillways in a laboratory flume. The models were built up to 31 steps, and data was collected by passing many different discharges through them. Effective parameters such as: a, N, Hdam, Yc, and (h, l) were obtained by data analysis and then some important and effective dimensionless parameters for geometric optimization of the stepped spillways were found using a dimensionless technique and analyzing the results. There was a relation between the relative dissipating energy and some dimensionless parameters like yc/h, Hdam/yc. Results showed that the best physical model for dissipating the energy was 15 step spillway. Finally, the geometric optimized formula were proposed for mentioned spillway by analyzing the obtained parameters. Manuscript profile