1. Exergy and exergo-economic investigation of a novel hydrogen production and storage system via an integrated energy system
- Author
-
Ibrahim B. Mansir, Hayder A. Dhahad, Yan Cao, Chidiebere Diyoke, and Ehab Hussein Bani Hani
- Subjects
Exergy ,Thermal efficiency ,Renewable Energy, Sustainability and the Environment ,business.industry ,Energy Engineering and Power Technology ,Coefficient of performance ,Condensed Matter Physics ,law.invention ,Fuel Technology ,law ,Absorption refrigerator ,Exergy efficiency ,Environmental science ,Solid oxide fuel cell ,Process engineering ,business ,Evaporator ,Polymer electrolyte membrane electrolysis - Abstract
The main purpose of the current research work is to suggest a novel integrated multi-generation energy system and scrutinize 4E evaluation. This system consists of a solid oxide fuel cell, a PEM electrolyzer for hydrogen production, and an ejector-based absorption chiller for the coefficient of performance improvement. All parts of this system are verified with existing reports and papers. Effect of fuel cell current density, SOFC fuel cell temperature, absorption chiller evaporator temperature, and condenser temperature, and outlet turbine pressure has been investigated and reported. The effect of mentioned parameters on the exergy and cost rate has been considered. Data illustrate that the maximum exergy destruction rate belongs to the SOFC contributing 60% of the total exergy destruction rate of the system. Under the given condition of the system, the net produced power is about 200 kW with an exergy efficiency of 30.2% and thermal efficiency of 60.4%. At the considered condition the total cost rate of the system is estimated about 22.29 $/hr. The results of the present work provide a scientific base for designing poly-generation systems with high efficiency and reasonable cost rate.
- Published
- 2022