Analysis of an intermediate-temperature proton-conducting SOFC hybrid system

被引：11

作者：

Cheng, Tien-Chun ^{[1
]}

Huang, Tzu-Yuan ^{[1
]}

Chen, Chi-Fu ^{[1
]}

Tseng, Chung-Jen ^{[1
]}

Lee, Sheng-Wei ^{[1
]}

Chang, Jeng-Kuei ^{[1
]}

Jang, Jason Shian-Ching ^{[1
]}

机构：

[1] Natl Cent Univ, Dept Mech Engn, Jhongli 32001, Taiwan

来源：

INTERNATIONAL JOURNAL OF GREEN ENERGY | 2016年 / 13卷 / 15期

关键词：

Hybrid system; intermediate-temperature; proton-conducting SOFC; system simulation; OXIDE FUEL-CELL; THERMODYNAMIC ANALYSIS; COMBINED HEAT; PERFORMANCE; HYDROGEN;

D O I：

10.1080/15435075.2016.1171229

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The performance of an intermediate-temperature proton-conducting solid oxide fuel cell (pSOFC) hybrid system is investigated in this work. The hybrid system consists of a 20-kW pSOFC, a micro gas turbine (MGT), and heat exchangers. Heat exchangers are used to recover waste heat from pSOFC and MGT. The performance of the system is analyzed by using Matlab/Simulink/Thermolib. Flow rates of air and hydrogen are controlled by assigning different stoichiometric ratio (St). St considered in this study is between 2 and 3.5 for air, and between 1.25 and 1.45 for hydrogen. Results show that the combined heat and power (CHP) efficiency increases as the fuel St decreases or air St increases. This is because lowering fuel St means fewer fuel will be wasted from the fuel cell stack, so the CHP efficiency increases. On the other hand, as air St increases, the amount of recovered waste heat increases, so does the CHP efficiency.

引用

页码：1649 / 1656

页数：8

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