| Exergy, exergoeconomic and environmental analyses and multi-objective optimization of a novel cogeneration system for hydrogen and cooling production system |
| کد مقاله : 1108-ICNH |
| نویسندگان: |
|
رضا زیرک *1، آرمین عسگری2، کاوه یزدی3، عباس زارع نژاد اشکذری4، هادی توحیدی5 1محقق سازمان تحقیقات و جهاد خودکفایی نداجا و محقق در مرکز مطالعات راهبردی نداجا 2دانشگاه تبریز 3نخبگان جهاد نداجا 4استاد دانشگاه دریایی امام خمینی (ره) 5مدیر آموزش سازمان جهاد نداجا |
| چکیده مقاله: |
| Background and Objective The mismatch between energy demand and supply has become more prominent as societies progress. As a result, energy problems have gotten more attention as civilizations advance economically and technologically. The desire to avoid exacerbating important societal problems such as climate change and global warming, and the diminishing supply of fossil fuels has resulted in an increase in the use of renewable and clean energy sources across the globe in recent years. In recent years, the incorporation of renewable energy sources into cogeneration, multigeneration, and polygeneration energy systems has been proposed as a strategy for increasing the economic potential of renewable energy sources while also reducing their environmental impact. Materials and Methods The simulation and analyses of this study have been implemented using Engineering Equation Solver (EES) software. Also, the optimization procedure has been applied by the use of MATLAB software. Findings Hydrogen production using solar energy can achieve large-scale hydrogen production and solve various energy problems. The concept of hydrogen and cooling cogeneration can realize the cascade and efficient utilization of high-temperature solar energy. In this regard, a novel solar-based combined system is proposed to produce hydrogen and cooling using a methanol-reforming process and double-effect absorption refrigeration cycle. Energy, exergy, exergoeconomic, and economic criteria were defined to evaluate the feasibility of the system for investment and construction. The system was analyzed by developing a precise model in the Engineering Equation Solver. Then, optimal conditions were obtained using multi-objective particle swarm optimization and the LINMAP decision-making approach. The results revealed that the system has an energy efficiency of 75.46% with an exergetic efficiency of 77.24%, a total cost rate of 46.48 $/GJ, a cooling production capacity of 346.7 kW, and a hydrogen generation rate of 0.01511 kg/h. Also, the optimum exergy efficiency and unit cost of products are obtained to be 81.38% and 37.96 $/GJ, respectively. Moreover, the total profit of 15.23 $M can be gained at the end of the plant lifetime for the hydrogen cost of 6 $/m^3. In this conditions, the payback period is about 1.35 years. Conclusion Using this proposed system provides hydrogen, power, and cooling the meantime improves energy and exergy efficiency, and reduces negative environmental impacts. |
| کلیدواژه ها: |
| Solar-assisted system; Methanol-reforming unit; Hydrogen production; Cooling; Exergoeconomic analysis; |
| وضعیت : چکیده برای ارائه به صورت پوستر پذیرفته شده است |