发电技术 ›› 2019, Vol. 40 ›› Issue (2): 148-154.DOI: 10.12096/j.2096-4528.pgt.18161

• 火电及环境保护 • 上一篇    下一篇

基于生物质燃料的水冷式温差发电机的实验研究

朱凌云(),李国能(),康泰云,陈华锋,郑友取   

  • 收稿日期:2018-08-20 出版日期:2019-04-30 发布日期:2019-05-09
  • 作者简介:朱凌云(1994),男,硕士研究生,主要从事温差发电机装配技术研究, 211601802004@zust.edu.cn|李国能(1981),男,博士,教授,主要从事温差发电技术研究, 109026@zust.edu.cn
  • 基金资助:
    国家自然科学基金项目(51476145)

Experimental Study on a Water Cooled Thermoelectric Generator Based on Biomass Fuel

Lingyun ZHU(),Guoneng LI(),Taiyun KANG,Huafeng CHEN,Youqu ZHENG   

  • Received:2018-08-20 Published:2019-04-30 Online:2019-05-09
  • Supported by:
    National Natural Science Foundation of China(51476145)

摘要:

为解决无电区域和火灾、地震和雪灾等特殊条件下的供电问题,设计了一种可燃用木柴和木炭等生物质燃料的水冷式温差发电机,其特点在于引入了一种辐射型的集热器。温差发电机的总质量为23.3 kg,集成了直流稳压器,可稳定地对外输出电能。测试了温差发电机的启动特性、空载特性和功率负载特性,结果表明:该温差发电机的平均工作温差为68℃,最大空载电压达到116.3 V。当接入负载时,输出功率随外部负载电阻的增大而降低。当外部负载为1.6 Ω时,温差发电机可对外输出最大功率为22.4 W;继续降低负载电阻时,温差发电机将不能维持稳定地输出电能。

关键词: 温差发电, 功率负载特性, 生物质燃料, 实验研究

Abstract:

In order to supply electricity in off-grid areas and under emergency conditions such as fire accident, earthquake, and snow disaster, a water-cooled thermoel-ectric generator was designed, which can be fueled with wood, charcoal and other biomass, and it is featured by the incorporation of a radial-shaped heat collector. The ther-moelectric generator, weighting of 23.3 kg, incorporates a DC-DC converter to stabilize the output voltage. The start-up performance, no-load characteristic and power load feature of the thermoelectric generator were studied in detail. Results show that the average temperature difference is approximate 68℃, and the maximum no-load voltage reached 116.3 V. In loaded case, the electric power output decreases with the external load resistance. The maximum electric power output is found to be 22.4 W when the external load resistance is 1.6 Ω; and the thermoelectric generator is not able to output electricity steadily when the external load is reduced hereby.

Key words: thermoelectric generator, power load feature, biomass fuel, experimental study