The characteristics of a Linear Joule Engine Generator operating on a dry friction principle
The characteristics of a Linear Joule Engine Generator operating on a dry friction principle
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DOI：
10.1016/j.apenergy.2018.12.081
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发表时间：
2019-03
期刊：
影响因子：
11.2
通讯作者：
U. Ngwaka;Boru Jia;C. Lawrence;Dawei Wu;A. Smallbone;A. Roskilly
中科院分区：
文献类型：
--
作者：
U. Ngwaka;Boru Jia;C. Lawrence;Dawei Wu;A. Smallbone;A. Roskilly
本文介绍了一种新型干摩擦直线焦耳发动机发电机的摩擦特性。为了模拟压缩机和膨胀机的工作压力，将干摩擦力模型集成到具有粘性阻尼和弹簧常数的质量-弹簧-阻尼器系统中，建立了摩擦力的数值模型。将线性焦耳发动机发电机样机的实验结果与所提出的摩擦模型和其他已报道的摩擦模型所预测的数值模拟结果进行了比较。最后，建立了发电机负载与直线焦耳发动机发电机摩擦功率之间的关系。
In this paper, the friction characteristics of a novel Linear Joule Engine Generator operating on dry friction mechanism is presented. A numerical model of the friction forces is represented through the development of a dry friction force model integrated into a mass-spring-damper system with viscous damping and spring constant to emulate compressor and expander operating pressures. Experimental results from a Linear Joule Engine Generator prototype are compared with the numerical simulation results predicted by the proposed friction model and other reported friction models identified from the wider engineering literature. Finally, the relationship between electric generator load and friction power of Linear Joule Engine Generator is established.