自由活塞直线发电机输出性能试验研究

田亚明 1; 张红光 1; 李高胜 1; 侯孝臣 1; 于飞 1; 2; 许永红 3; 刘毅 4

doi:10.7652/xjtuxb201803016

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自由活塞直线发电机输出性能试验研究

更新时间：2025-07-09

- 自由活塞直线发电机输出性能试验研究
- Experimental Study on the Power Output Performance of the Free Piston Linear Generator Used for Waste Heat Recovery
- 西安交通大学学报 2018年52卷第3期页码：119-125
- 作者机构：
  
  1. 北京工业大学环境与能源工程学院,北京,100124
  2. 北京电动车辆协同创新中心,北京,100124
- 作者简介：
- 基金信息：
  
  : 2017-08-15。作者简介: 田亚明(1992—),男,硕士生;张红光(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51376011);国家自然科学基金委员会与英国皇家学会合作交流项目(51611130193);北京市自然科学基金资助项目(3152005)
- DOI：10.7652/xjtuxb201803016
  中图分类号： TK11
- 网络首发：2018-03-10，
  
  纸质出版：2018
- 稿件说明：
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田亚明 1, 张红光 1, 李高胜 1, 等. 自由活塞直线发电机输出性能试验研究[J]. 西安交通大学学报, 2018,52(3):119-125.

Experimental Study on the Power Output Performance of the Free Piston Linear Generator Used for Waste Heat Recovery[J]. 2018, 52(3): 119-125.
田亚明 1, 张红光 1, 李高胜 1, 等. 自由活塞直线发电机输出性能试验研究[J]. 西安交通大学学报, 2018,52(3):119-125. DOI： 10.7652/xjtuxb201803016.

Experimental Study on the Power Output Performance of the Free Piston Linear Generator Used for Waste Heat Recovery[J]. 2018, 52(3): 119-125. DOI： 10.7652/xjtuxb201803016.

摘要

为了有效地回收车用内燃机排气余热

将自主研发的自由活塞膨胀机与直线电机耦合形成一种新型自由活塞直线发电机(FPLG)

用于小规模的有机朗肯循环(ORC)余热回收系统。FPLG以压缩空气为工质

针对不同工况开展了大量试验研究

分析了进气压力、运行频率及外部负载电阻对FPLG输出功率和能量转换效率的影响。研究结果表明

适当提高进气压力

能够明显提高FPLG峰值输出功率和能量转化效率。然而

峰值输出功率随着运行频率的增大而迅速下降。当运行频率为2.0 Hz、进气压力为0.26 MPa、外部负载电阻为20 Ω时

FPLG的转换效率最大

可达到45.82%。随着外部负载电阻的增大

FPLG的峰值输出功率呈现出先增大后减小的趋势。当运行频率为2.5 Hz、进气压力为0.26 MPa、外部负载电阻为20 Ω时

峰值输出功率最大

为47.5 W。

Abstract

A novel free piston expander coupled with a linear generator(FPLG)prototype used in a small-scale organic Rankine cycle(ORC)system

is presented to recover the exhaust waste heat from vehicle engines. On the basis of continuous and stable operation of the FPLG

a large number of experiments were carried out under different operation conditions. The effects of intake pressure

operation frequency and external load resistance on the output performance of the FPLG as well as the motion rule of the piston are discussed. The results show that both peak power output and energy conversion efficiency can be improved by increasing the intake pressure appropriately. The energy conversion efficiency can reach up to 45.82% when the intake pressure is 0.26 MPa and operation frequency is 2.0 Hz. With the increase of the external load resistance

the peak power output of FPLG shows a trend of increasing first and then decreasing. And the maximum peak power output 47.5 W is obtained when the external load resistance is 20 Ω and operation frequency is 2.5 Hz.

关键词

Keywords

references

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