Thermodynamic performance of a new hybrid system based on concentrating solar system, molten carbonate fuel cell and organic Rankine cycle with CO2 capturing analysis
| Autor: | Mohammad Taghavi, Yahong Qin, Bing Mei |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Organic Rankine cycle
Exergy 021110 strategic defence & security studies Environmental Engineering business.industry General Chemical Engineering 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences 01 natural sciences Separation process Waste heat Molten carbonate fuel cell Parabolic trough Exergy efficiency Environmental Chemistry Environmental science Safety Risk Reliability and Quality Process engineering business Evaporator 0105 earth and related environmental sciences |
| Zdroj: | Process Safety and Environmental Protection. 146:531-551 |
| ISSN: | 0957-5820 |
| DOI: | 10.1016/j.psep.2020.12.001 |
| Popis: | This paper presents the performance analysis of the process consisting of the molten carbonate fuel cell (MCFC), parabolic dish collector (PDC), linear Fresnel reflector (LFR), Organic Rankine Cycle (ORC) and the gas turbine, with the carbon dioxide separation process. In proposed novel process, the MCFC waste heat is used to generate additional electricity in the ORC. In addition, a gas turbine embedded in the process also generates electricity. This hybrid system also uses two concentrating solar collectors, i.e. LFR and PDC. The former raises the water temperature b7efore mixing with fuel and the latter raises the temperature of the mixture (water and fuel) before entering the reformer. Furthermore, in present study the performance of parabolic trough collector is investigated, assuming it provides the required duty of evaporator of ORC. Finally, the present study examines the process of carbon dioxide separation. The results revealed that, overall, electrical and exergy efficiency of the hybrid cycle is 58.02 %, 44.2 % and 74.9 %, respectively. Furthermore, the total exergy destruction rate and removal efficiency of the system are 13.67 MW and 78.9 %, respectively. In addition, about 35 collectors of LFR and 55 collectors of PDC are needed to supply the required duty of solar thermal collectors. |
| Databáze: | OpenAIRE |
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