微热光电系统中的微燃烧研究  

Microscale combustion research for application to micro thermophotovoltaic systems

作　　者：潘剑锋[1] 李德桃[1] 邓军[1] 杨文明[2] 薛宏 

机构地区：[1]江苏大学能源与动力工程学院,江苏镇江212003 [2]新加坡国立大学 [3]美国加州州立工业大学

出　　处：《热科学与技术》2004年第3期261-266,共6页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助项目 ( 5 0 3 760 2 0 )

摘　　要：描述了一种新颖的 MEMS动力源概念 ,即微热光电 ( TPV)系统。该系统将使用氢气作为燃料 ,每立方厘米体积能够发出 1～ 1 0 W的电力。微燃烧室是该系统中最重要的元件之一 ,为了获得较高的电能输出 ,燃烧室壁面的温度分布要求高而且均匀。由于微燃烧室面容比大 ,热损失显著增加 ;着火困难并使火焰窒熄。为了测试微燃烧室内燃烧的可行性和确定影响燃烧的有关因素 ,进行了实验和数值模拟。结果表明燃烧室壁面能够得到要求的高温 ,且温度分布均匀。A novel power MEMS concept, a micro thermophotovoltaic (TPV) system, was first introduced, which use hydrogen as fuel and is capable of delivering 1~10 W electrical power in a package less than 1 cubic centimeter in volume. A micro combustor is one of the most important components of a micro TPV system. A high and uniform temperature distribution along the wall of micro combustor is required to get a high electrical power output. However, sustaining combustion in a MEMS-sized combustor will be largely affected by the increased heat losses due to the high surface-to-volume ratio, which tends to suppress ignition and quench the reaction. In order to test the feasibility of combustion in micro devices and determine relevant factors affecting the micro combustion, numerical and experimental work were carried out. Results indicated that a high and uniform temperature can be obtained along the wall of the flame tube.

关 键 词：微热光电系统 微TPV系统 微燃烧室 光电池 温度分布 

分 类 号：TM914[电气工程—电力电子与电力传动]