Electric power generation by super-adiabatic combustion in thermoelectric porous element
Electric power generation by super-adiabatic combustion in thermoelectric porous element
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DOI：
10.1016/j.energy.2004.05.010
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发表时间：
2003-08
期刊：
影响因子：
9
通讯作者：
K. Hanamura;T. Kumano;Y. Iida
中科院分区：
文献类型：
--
作者：
K. Hanamura;T. Kumano;Y. Iida
提出了一种基于催化热电多孔元件内往复流超绝热燃烧的燃烧热转化为电能的新系统。在该元件中成功实现了极低热气体的自持燃烧;因为多孔元件中的往复流动使能量再循环，有效地将燃烧气体焓再生为低热气体中的焓增加。在燃烧系统中，沿着流动方向建立梯形温度分布，导致热电多孔元件中的陡峭温度梯度。数值模拟表明，94%的燃烧热量通过热电元件传导。结果，总热效率（其被定义为产生的电功率与燃烧热的比率）达到接近热电装置本身的转换效率的值。
A new system for converting combustion heat into electric power was proposed on the basis of reciprocating-flow super-adiabatic combustion in a catalytic and thermoelectric porous element. Self-sustaining combustion of an extremely low-calorific gas was successfully achieved in the element; because a reciprocating flow in the porous element recirculated energy, effectively regenerating combustion gas enthalpy into an enthalpy increase in the low-calorific gas. In the combustion system, a trapezoidal temperature distribution was established along the flow direction, resulting in a steep temperature gradient in the thermoelectric porous element. Numerical simulation showed that 94% of the combustion heat was transferred through the thermoelectric element by conduction. As a result, the total thermal efficiency, which was defined as the ratio of the electric power generated to the combustion heat, attained a value close to the conversion efficiency of the thermoelectric device itself.