چكيده به لاتين
The purpose of this research is desinge, construction and optimization of solar water pump using Stirling engine. To achieve this goal, a primary model introduced and a conceptual designe base on that model done. According to conceptual designe, a comprehensive mathematical modeling developed combinig linear momentum, unsteady Bernoulli and continuity equations. Dividing water pump into parts of liquid pistons and applying conservation of mass, unsteady Bernoulli and Newton’s second law, governing equations of each part developed and coupled together. They are obtained as a first and four second order ordinary differential equations. The obtained differential equations are rewritten to nine first order differential equations and solved employing 4th order Runge-Kutta numerical method in MATLAB software. The preliminary behavior of the system simulated using some initial parameters in MATLAB software. According to nonlinear behavior of proposed solar water pump, based on input parameters, the system can be in steady state, unsteady state, or even marginal stable state. This fact caused based on mentioned objectives, an objective function is proposed and eventually, the decision design parameters found by an optimization scheme using a particle swarm optimization (PSO) Evolutionary algorithm and according to the considered operating conditions. Finally, optimization results developed and based on them, a prototype constructed and tested. Experimental results of solar water pump and comparison of them with simulation and optimization results indicated that the mathematical modeling of the proposed solar water pump was valid.
