Application of combined mathematical modeling/optimization methods coupled pitch controller in wind turbine using hybrid MLP neural network and firefly algorithm

Ehsanolah Assareh; Iman Poultangari; Afshin Ghanbarzadeh

Articles in Press, Accepted Manuscript, Available Online from 12 September 2018


  A common method utilized in wind turbines is pitch angle control whereby via varying the angle of wind turbine blades around their own axis, power generated at high speeds of wind is held around maximum amount and is kept away from the severe mechanical stress on wind turbine. In current study, in order ...  Read More

Analysis and implementation of the solar tree by determining the optimal angle in Shiraz-Iran

Meraj Rajaee; Mina Jalali

Volume 12, Issue 1 , August 2022, , Pages 95-107


  The solar tree is a combination of technology and art that is considered as the application of solar energy in the art of urban architecture. This study aims to combine solar technology with architectural style and art, to help urban beautification and investigate the increase in solar panels' efficiency ...  Read More

Presenting Three Design Methods for Axial Compressor Blade via Optimization

Omid Fathi; Hadi Kargarsharifabad

Volume 8, Issue 1 , September 2018, , Pages 107-120


  Improving the efficiency of compressors has been one of the most important goals of researchers over the years. In this paper, three different methods are presented for parameterization and blade optimization of axial flow compressor. All methods consist of flow analysis tool, optimization algorithms, ...  Read More

Heat and Mass Transfer
Optimizing naturally driven air flow in a vertical pipe by changing the intensity and location of the wall heat flux

M. Rahimi; M. Khalafi-Salout

Volume 5, Issue 2 , June 2016, , Pages 137-145


  Heat transfer from the internal surfaces of a vertical pipe to the adjacent air gives rise to the air flow establishment within the pipe. With the aim of optimizing the convective air flow rate in a vertical pipe, the details of the flow and thermal fields were investigated in the present study. Conservation ...  Read More

Few heuristic optimization algorithms to solve the multi-period fixed charge production-distribution problem

N. Balaji; N. Jawahar

Volume 1, Issue 2 , June 2012, , Pages 77-87


  This paper deals with a multi-period fixed charge production-distribution problem associated with backorder and inventories. The objective is to determine the size of the shipments from each supplier and backorder and inventories at each period, so that the total cost incurred during the entire period ...  Read More

Simultaneous allocation of reliability & redundancy using minimum total cost of ownership approach

G. Kanagaraj; N. Jawahar

Volume 1, Issue 1 , December 2011, , Pages 1-16


  This paper addresses the mixed integer reliability redundancy allocation problems to determine simultaneous allocation of optimal reliability and redundancy level of components based on three objective goals. System engineering principles suggest that the best design is the design that maximizes the ...  Read More