|کد مقاله||سال انتشار||مقاله انگلیسی||ترجمه فارسی||تعداد کلمات|
|148404||2017||53 صفحه PDF||سفارش دهید||15031 کلمه|
Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Energy, Volume 127, 15 May 2017, Pages 516-533
A novel integrated system, including air separation unit (ASU), coal gasification, solid oxide fuel cell (SOFC), carbon dioxide (CO2) transcritical cycle, steam cycle with liquefied natural gas (LNG) vaporization is configured and analyzed. ASU provides the required oxygen for SOFC and oxy-fuel power generation system. Coal gasification provides syngas which is utilized as a part of the essential heat source. Electrical power is generated by SOFC, steam and CO2 oxy-fuel cycles. LNG is vaporized to provide the cold energy and also is utilized as the fuel in the SOFC and CO2 oxy fuel cycles. Sensitivity of the process performance to the major operating parameters is studied. Effect of the LNG flow rate, turbine inlet temperature (TIT), CO2 oxy-fuel cycle pressure ratio and SOFC operating parameters are investigated. The obtained results indicate that the net electrical power is 5.97Â ÃÂ 105Â kW, in the condition that TITÂ =Â 900Â Â°C, rp,cÂ =Â 28, VcellÂ =Â 0.85 and UfÂ =Â 0.8. In this process rate of the utilized LNG is 1.10Â ÃÂ 108Â kg.hâ1 and rate of the captured CO2 is 1.03Â ÃÂ 104Â kg.hâ1. Also 1.36Â ÃÂ 107Â kgÂ hâ1 syngas, 1.38Â ÃÂ 107Â kg.hâ1 liquid oxygen (LO2), 3.37Â ÃÂ 107Â kg.hâ1 liquid nitrogen (LN2) and 1.00Â ÃÂ 108Â kg.hâ1Â NG are produced.