Journal
ENERGY CONVERSION AND MANAGEMENT
Volume 150, Issue -, Pages 814-821Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2017.03.019
Keywords
Phase tuning; Travelling-wave; Thermoacoustic engine; RC load
Categories
Funding
- Ministry of Higher of Education/Babylon University in Iraq [553]
- EPSRC [EP/P005667/1] Funding Source: UKRI
Ask authors/readers for more resources
Travelling-wave thermoacoustic engine utilises a compact acoustic network to obtain a right time phasing between the acoustic velocity and pressure oscillations within the regenerator to force gas parcels to experience a Stirling-like thermodynamic cycle. As such, thermal energy can be converted to mechanical work (i.e., high-intensity pressure waves). It is therefore crucial to control the time phasing carefully to improve the performance of thermoacoustic engines. Various ways have been proposed and demonstrated for adjusting time-phasing, including both passive and active methods. The aim of this study is to introduce a new passive phase tuning method (i.e., a side-branched acoustic volume) to tune the time-phasing within a looped-tube travelling wave thermoacoustic engine. The proposed concept has been investigated both numerically and experimentally in this research. An experimental rig was simulated and designed using DeltaEC software (Design Environment for Low amplitude ThermoAcoustic Energy Conversion). It was then constructed according to the obtained theoretical model: The result of this study showed a qualitative agreement between experimental measurement and numerical simulations, demonstrating that the proposed technique can effectively adjust the phase angle between the acoustic velocity and pressure oscillations within the loop-tube thermoacoustic engines, and improve its performance. (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available