Performance investigation of a new renewable energy‐based carbon dioxide capturing system with aqueous ammonia

Abstract

Summary In this study, a novel wind energy‐based carbon dioxide (CO2) capturing system is developed and investigated for practical applications to reduce environmental emissions. The aqueous ammonia‐based capturing technology is utilized. Wind turbines are used to operate the onsite ammonia synthesis as well as hydrogen production. The proton exchange membrane electrolysis system is considered for hydrogen production and the Haber‐Bosch ammonia synthesis technique is utilized. The developed system is modeled in Aspen Plus software. The system performance for CO2 capture is studied through economic, energy, and exergy perspectives. The CO2 capture cost is evaluated to be between 0.1 and 0.23 $/kg CO2. Furthermore, the system CO2 capture rate is determined to be 3.5 kg/s. Moreover, for a unit mass of CO2 captured, the energy consumption is found to be 640.1 kg CO2/MWh. Several parametric studies are also conducted to analyze the effects of varying operating conditions on the system performance.

Enhancing stability region of time‐delayed smart power grids by non‐integer controllers

“…When energy is needed, the stored hydrogen is converted into electrical energy by FCs. 2,29,30 The FC and ES, which are other elements of the primary frequency control, are represented by a first-order transfer function in reference to the operation of a battery energy storage facility as shown in Ref. 27 The transfer function G FC (s) of the FC and the transfer function G ES (s) of the ES are shown in Equation 3.…”

“…When wind and solar energy production is high, hydrogen is produced by ES and stored in hydrogen tank. When energy is needed, the stored hydrogen is converted into electrical energy by FCs 2,29,30 . The FC and ES, which are other elements of the primary frequency control, are represented by a first‐order transfer function in reference to the operation of a battery energy storage facility as shown in Ref 27 .…”

“…This popularity has been driven by rising awareness of the growing demand for traditional fossil fuels, the instability of fuel prices and the reduction of environmental emissions. 1,2 The small size of this newly DG will reveal a class of problems that require innovative approaches to managing and operating DGs which is addressed by microgrid (MG) concept. The concept of MG is presented as a way to add value to both the grid and the customer in order to overcome the problems discussed above.…”

“…Distributed generation (DG) energy systems have gained popularity over the last two decades due to the expansion of electric power systems and a sustainable way of electrification of remote areas. This popularity has been driven by rising awareness of the growing demand for traditional fossil fuels, the instability of fuel prices and the reduction of environmental emissions 1,2 . The small size of this newly DG will reveal a class of problems that require innovative approaches to managing and operating DGs which is addressed by microgrid (MG) concept.…”

Multi-objective Optimization of a Novel Hybrid Structure for Co-generation of Ammonium Bicarbonate, Formic Acid, and Methanol with Net-Zero Carbon Emissions

“…Through an optimization algorithm, the total exergy destruction rate as well as the total unit cost of the product were obtained as 86 MW and 0.00519 $/kg, respectively. Two hybrid structures were developed, including proton exchange membrane electrolysis, an ammonia synthesis reactor, and a carbon dioxide absorption unit to produce ammonium bicarbonate. , Wind turbines were used to provide the required electrical power for the electrolyzer and nitrogen compressor. The carbon dioxide absorption efficiency and energy required for its absorption were 95.5% and 14.3 MJ/kgCO 2 , respectively.…”