حسن حاج عبدالهی
استادیار، گروه مهندسی مکانیک، دانشگاه ولی عصر رفسنجان، رفسنجان، ایران
[ 1 ] - مدلسازی دینامیکی و بهینه سازی فنی اقتصادی یک سردخانه با بکارگیری سیالات کاری مختلف
یک سردخانه به کمک چرخه تبرید تراکمی بخار مدلسازی و بهینه سازی شده است. پارامترهای طراحی عبارتند از: فشار تبخیرکن، فشار چگالنده، طول، ضخامت دیوارها، عرض و ارتفاع سردخانه، نرخ جریان مبرد و میزان مافوق گرم کردن و مادون سردکردن در تبخیرکن چگالنده، به منظور یافتن مقادیر بهینه پارامترهای طراحی ازالگوریتم چند هدفه ژنتیک استفاده شده است. به علاوه در این سیستم سه مبرد که شامل R22, R134a و R407c است، بک...
[ 2 ] - Selection of the optimum prime mover and the working fluid in a regenerative organic rankine cycle
A regenerative organic Rankine cycle (RORC) is modeled and optimized for the use of waste heat recovery from a prime mover (PM). Three PMs including, a diesel engine, a gas engine, and a microturbine are selected in this study. Four refrigerants including isobutane, R123, R134a, and R245fa are selected. The nominal capacity of the PM, PM operating partial load, turbine inlet pressure, condenser...
[ 3 ] - 4E analysis and multi-objective optimization of gas turbine CCHP plant with variable ambient temperature
In this paper a gas turbine power plant including air preheater (recuperator), heat recovery steam generator and air cooler system was modeled. Eight parameters were selected as the design variables. Fast and elitist non-dominated sorting genetic algorithm (NSGA-II) was applied (to maximize the exergy efficiency and to minimize the total cost rate) for the mentioned cogeneration system. Th...
[ 4 ] - Dynamical modeling and thermo-economic optimization of a cold room assisted vapor-compression refrigeration cycle
A cold room assisted vapor-compression refrigeration cycle is dynamically modeled in a year and optimized. Total annual cost (TACO) and coefficient of performance (COP) are selected as two objective functions. Both cold room and refrigeration cycle parameters are considered as design variables. Moreover, three working fluids included R22, R134a and R407c are examined. The optimum Pareto front r...
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