Brayton heat engine model is developed in MATLAB simulink environment and thermodynamic optimization based on finite time thermodynamic analysis along with multiple criteria is implemented. The proposed work investigates optimal values of various decision variables that simultaneously optimize power output, thermal efficiency and ecological function using evolutionary algorithm based on NSGA-II. Pareto optimal frontier between triple and dual objectives is obtained and best optimal value is selected using Fuzzy, TOPSIS, LINMAP and Shannon's entropy decision making methods. Triple objective evolutionary approach applied to the proposed model gives power output, thermal efficiency, ecological function as (53.89 kW, 0.1611, À142 kW) which are 29.78%, 25.86% and 21.13% lower in comparison with reversible system. Furthermore, the present study reflects the effect of various heat capacitance rates and component efficiencies on triple objectives in graphical custom. Finally, with the aim of error investigation, average and maximum errors of obtained results are computed. Ó 2015 Faculty of Engineering, Ain Shams University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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This paper theoretically analyses and experimentally investigates the performance of Solar Photovoltaic driven thermoelectric cooler system for cold storage application. Small cold storage box of 3 liter capacity has been used for this investigation. The experimental setup has been made and analyzed for its performance in the composite climate of Delhi, India. Experimental results demonstrated that this unit could maintain the temperature of 10-15 degree Celsius inside the cold box. Moreover, energy and exergy analysis of the PV-TEC system has been performed to identify and quantify the irreversibilities occurring in the system. The performance of the system depends on incoming solar insolation and the temperature difference between the hot and cold sides for thermoelectric cooler module. It is expected that the cooler have potential for cold storage of food, vaccine and milk products in remote areas where electric power supply is not available.

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