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Electrical efficiency of ethanol fuelled solid oxide fuel cell system : comparison between distillation and pervaporation for bioethanol purification

หน่วยงาน จุฬาลงกรณ์มหาวิทยาลัย

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ชื่อเรื่อง : Electrical efficiency of ethanol fuelled solid oxide fuel cell system : comparison between distillation and pervaporation for bioethanol purification
นักวิจัย : Issara Choedkiatsakul
คำค้น : Solid oxide fuel cells , Ethanol
หน่วยงาน : จุฬาลงกรณ์มหาวิทยาลัย
ผู้ร่วมงาน : Suttichai Assabumrungrat , Sumittra Charojrochkul , Chulalongkorn University. Faculty of Engineering
ปีพิมพ์ : 2552
อ้างอิง : http://cuir.car.chula.ac.th/handle/123456789/18763
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Thesis (M.Eng.)--Chulalongkorn University, 2009

The overall electrical efficiencies of the solid oxide fuel cell (SOFC) systemintegrated with two different bio-ethanol purification processes, i.e. distillation and pervaporation were investigated and compared. It was found that the purification by pervaporation consumed less heat energy than that by distillation but the additional electrical power is required for the vacuum pump operation. In addition, two different levels of the permeate pressure for pervaporation were studied. The results show that the lowering pressure at the permeate side from 0.1 atm to 0.05 atm required less heat consumption but more electrical power consumption. For the SOFC system integrated with the purification process, the simulation studies were based on the condition that the net useful heat (Qnet) is equal to zero. It was found that the most suitable operating voltage is between 0.65 and 0.8 V and the operating temperature is in the range between 973 and 1173 K. For the effect of the ethanol recovery, the optimal ethanol recovery of the SOFC system integrated with distillation and pervaporation process are 95% and 99% respectively. The results indicate that the SOFC system integrated with pervaporation process with the permeate pressure of 0.1 atm offers the maximum overall electrical efficiency that is 41.6% (voltage = 0.7 V, temperature = 1073 K, separation factor = 923 and ethanol recovery = 99%)

บรรณานุกรม :
Issara Choedkiatsakul . (2552). Electrical efficiency of ethanol fuelled solid oxide fuel cell system : comparison between distillation and pervaporation for bioethanol purification.
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Issara Choedkiatsakul . 2552. "Electrical efficiency of ethanol fuelled solid oxide fuel cell system : comparison between distillation and pervaporation for bioethanol purification".
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Issara Choedkiatsakul . "Electrical efficiency of ethanol fuelled solid oxide fuel cell system : comparison between distillation and pervaporation for bioethanol purification."
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย, 2552. Print.
Issara Choedkiatsakul . Electrical efficiency of ethanol fuelled solid oxide fuel cell system : comparison between distillation and pervaporation for bioethanol purification. กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย; 2552.