The characteristics of a Linear Joule Engine Generator operating on a dry friction principle

Ugochukwu Ngwaka, Boru Jia, Christopher Lawrence, Dawei Wu, Andrew Smallbone*, Anthony Paul Roskilly

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)49-59
Number of pages11
JournalApplied Energy
Volume237
DOIs
Publication statusPublished - 1 Mar 2019
Externally publishedYes

Keywords

  • Electric generator
  • Friction
  • Linear-Joule Engine Generator

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Ngwaka, U., Jia, B., Lawrence, C., Wu, D., Smallbone, A., & Roskilly, A. P. (2019). The characteristics of a Linear Joule Engine Generator operating on a dry friction principle. Applied Energy, 237, 49-59. https://doi.org/10.1016/j.apenergy.2018.12.081