مشخصات پژوهش

صفحه نخست /Energy, exergy and economic ...
عنوان
Energy, exergy and economic assessments of a novel integrated biomass based multigeneration energy system with hydrogen production and LNG regasification cycle
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Biomass Gasification Multigeneration Hydrogen production Economic and environmental analyses LNG cold energy
چکیده
In this work, a novel integrated biomass based multigeneration energy system is presented and inves- tigated for power, cooling and hydrogen production. The proposed system consists of a combination of biomass integrated gasifier-gas turbine cycle, a Rankine cycle, a cascade organic Rankine cycle, an ab- sorption refrigeration system and a PEM to produce hydrogen. This system uses cold energy of LNG as a thermal sink. Comprehensive thermodynamic and economic analyses as well as an optimization are performed. The effects of operating parameters on thermodynamic performance and total cost rate are investigated for overall system and subsystems. The results show that the fuel mass flow rate is the dominant factor affecting the variation of energy efficiency and total cost rate. An increase in fuel mass flow rate from 4 kg s?1 to 10 kg s?1 leads to a decrease of 8.5% and an increase of 122.8% overall energy efficiency and total cost rate, respectively. Also, the largest increase in exergy efficiency occurs when gas turbine inlet temperature increases. The results of optimization showed that the highest net power output, mass flow rate of natural gas delivered to city and the flue gas temperature discharged to the environment are obtained for the exergy efficiency optimal design.
پژوهشگران محمدهادی طاهری (نفر اول)، امیرحسین مصفا (نفر دوم)، لیلی گروسی فرشی (نفر سوم)