TJ775 : Green hydrogen production and utilization in a SOFC/GT-baxsed multigeneration energy system with the approach of power generation enhancement and CO2 emission reduction
Thesis > Central Library of Shahrood University > Mechanical Engineering > MSc > 2021
Authors:
Saeed Khojaste Effatpanah [Author], Mohamad Hossein Ahmadi[Supervisor], Akbar Maleki[Supervisor], [Advisor]
Abstarct: The world's primary energy consumption has been steadily increasing along with population growth, technology advancement economic development. This increase in primary energy consumption is accompanied by an increase in the emission of various environmental pollutants. This has led to the implementation of various preventive measures to control pollution and reduce damage to the environment. In this regard, the use of renewable energy resources for energy production, carbon capture and storage (CCS) technologies and high-efficiency multi-generation energy systems, all of which are in line with the goal of sustainable development, has been prominently suggested. For this purpose, in this study, a sustainable and green multi-generation energy system baxsed on solid oxide fuel gas and gas turbine (SOFC-GT) with carbon dioxide (CO2) capture and storage process comprised of internal heat exchanger organic Rankine cycle (ORC-IHE), liquified natural gas cycle (LNGRC), Li-Br absorption refrigeration cycle (ARC), concentrated photovoltaic/thermal (CPV/T), wind farm (WF) and advanced alkaline electrolyzer (AAE) subsystems, designed, developed and modeled. The energy system presented in this research is capable of simultaneously generating electricity, cooling, hot water, carbon dioxide, hydrogen and oxygen. Under defined operating conditions, the proposed system is capable of generating up to 357 kW of net electrical power, 150 kW of cooling load, 2.2 kg /s of domestic hot water at 75 °C, 0.473 mol /s CO2, 0.55 mol/s green hydrogen and 0.275 mol/s of oxygen. The developed multi-generation energy system is zero-emission (ZE) and its performance is enhanced through the production and utilization of green hydrogen. Under defined operating conditions, the energy and exergy efficiency of the system are 57.94% and 32.22%, respectively. It is worth noting that to cover the issue of uncertainty and unpredictability of renewable energy resources that supply electricity consumed by the AAE system, a 10% confidence margin of more power generation has been considered.
Keywords:
#Multigeneration Energy System #Sustainable Development #Green Hydrogen #Solid oxide fuel cell (SOFC) #Carbon Capture and Storage (CCS). Keeping place: Central Library of Shahrood University
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