| 초록 |
As the environmental problems escalate, renewable power sources are needed to substitute fossil fuels. One of the promising renewable power sources is biogas obtained from brown algae (Saccharina japonica). This biogas can be converted into electricity using Solid Oxide Fuel Cell (SOFC), which is the most promising fuel cell technology for stationary power generation. It produces energy by electrochemically converting fuel into electricity and heat. SOFC generates high amount of waste heat which makes it plausible to integrate it into combined heat and power (CHP) power generation. In this work, energy and economical analysis of integrated SOFC and Organic Rankine Cycle (ORC) is investigated. The overall energy efficiency for SOFC is around 42.5% with minimum power selling price (MPSP) of 0.1374$/kWh. By integrating SOFC and ORC the overall efficiency can increase up to 6% and the MPSP decreases by 12.4%. Future works will integrate the CHP into Combined Hydrogen, Heat, and Power (CHHP) power generation. |
