Thermoacoustic micro-electricity generator for rural dwellings in developing countries driven by waste heat from cooking activities

Kalid O. A. Abdoulla-Latiwish, Xiaoan Mao, Artur J. Jaworski

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Thermoacoustic engines convert heat into acoustic power without moving parts. Coupling them with electrodynamic transducers – directly converting acoustic power to electricity – enables building simple electricity generators, where the only moving part is the piston of the linear alternator. Integration of such devices with biomass-driven cook stoves widely used in remote and rural areas of developing countries can lead to inexpensive electrical power systems, essentially powered by waste heat from daily cooking activities. In this paper the modelling, design, construction and testing of a laboratory demonstrator of such generator is outlined. A travelling-wave thermoacoustic engine with a looped-tube configuration is modelled using DeltaEC tool and constructed to convert heat input to acoustic power. Flue gas from a propane burner is used as a heat source for demonstration purposes. An audio loudspeaker is connected to a side branch and adopted as the electro-dynamic transducer for electricity production. Atmospheric air is employed as the working fluid to keep the cost of future systems low. The demonstrator produced just under 20 W of electricity with thermal-to-acoustic and thermal-to-electric efficiencies of around 3.5% and 1.9 respectively, which demonstrates the micro-power source concept. Experimental results and their numerical validation are outlined and analysed.
Original languageEnglish
Pages (from-to)1107-1120
Number of pages14
JournalEnergy
Volume134
Early online date6 May 2017
DOIs
Publication statusPublished - 1 Sep 2017
Externally publishedYes

Fingerprint

Thermoacoustics
Waste heat
Cooking
Developing countries
Thermodynamic properties
Electricity
Thermoacoustic engines
Acoustics
Transducers
Stoves
Loudspeakers
Electrodynamics
Fuel burners
Flue gases
Propane
Pistons
Biomass
Demonstrations
Hot Temperature
Fluids

Cite this

@article{b10736638e0c420588bebdff7d225f62,
title = "Thermoacoustic micro-electricity generator for rural dwellings in developing countries driven by waste heat from cooking activities",
abstract = "Thermoacoustic engines convert heat into acoustic power without moving parts. Coupling them with electrodynamic transducers – directly converting acoustic power to electricity – enables building simple electricity generators, where the only moving part is the piston of the linear alternator. Integration of such devices with biomass-driven cook stoves widely used in remote and rural areas of developing countries can lead to inexpensive electrical power systems, essentially powered by waste heat from daily cooking activities. In this paper the modelling, design, construction and testing of a laboratory demonstrator of such generator is outlined. A travelling-wave thermoacoustic engine with a looped-tube configuration is modelled using DeltaEC tool and constructed to convert heat input to acoustic power. Flue gas from a propane burner is used as a heat source for demonstration purposes. An audio loudspeaker is connected to a side branch and adopted as the electro-dynamic transducer for electricity production. Atmospheric air is employed as the working fluid to keep the cost of future systems low. The demonstrator produced just under 20 W of electricity with thermal-to-acoustic and thermal-to-electric efficiencies of around 3.5{\%} and 1.9 respectively, which demonstrates the micro-power source concept. Experimental results and their numerical validation are outlined and analysed.",
keywords = "cooking, developing countries, electricity generator, micro-power, thermoacoustics, waste heat",
author = "Abdoulla-Latiwish, {Kalid O. A.} and Xiaoan Mao and Jaworski, {Artur J.}",
year = "2017",
month = "9",
day = "1",
doi = "10.1016/j.energy.2017.05.029",
language = "English",
volume = "134",
pages = "1107--1120",
journal = "Energy",
issn = "0360-5442",
publisher = "Elsevier",

}

Thermoacoustic micro-electricity generator for rural dwellings in developing countries driven by waste heat from cooking activities. / Abdoulla-Latiwish, Kalid O. A.; Mao, Xiaoan; Jaworski, Artur J.

In: Energy, Vol. 134, 01.09.2017, p. 1107-1120.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Thermoacoustic micro-electricity generator for rural dwellings in developing countries driven by waste heat from cooking activities

AU - Abdoulla-Latiwish, Kalid O. A.

AU - Mao, Xiaoan

AU - Jaworski, Artur J.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Thermoacoustic engines convert heat into acoustic power without moving parts. Coupling them with electrodynamic transducers – directly converting acoustic power to electricity – enables building simple electricity generators, where the only moving part is the piston of the linear alternator. Integration of such devices with biomass-driven cook stoves widely used in remote and rural areas of developing countries can lead to inexpensive electrical power systems, essentially powered by waste heat from daily cooking activities. In this paper the modelling, design, construction and testing of a laboratory demonstrator of such generator is outlined. A travelling-wave thermoacoustic engine with a looped-tube configuration is modelled using DeltaEC tool and constructed to convert heat input to acoustic power. Flue gas from a propane burner is used as a heat source for demonstration purposes. An audio loudspeaker is connected to a side branch and adopted as the electro-dynamic transducer for electricity production. Atmospheric air is employed as the working fluid to keep the cost of future systems low. The demonstrator produced just under 20 W of electricity with thermal-to-acoustic and thermal-to-electric efficiencies of around 3.5% and 1.9 respectively, which demonstrates the micro-power source concept. Experimental results and their numerical validation are outlined and analysed.

AB - Thermoacoustic engines convert heat into acoustic power without moving parts. Coupling them with electrodynamic transducers – directly converting acoustic power to electricity – enables building simple electricity generators, where the only moving part is the piston of the linear alternator. Integration of such devices with biomass-driven cook stoves widely used in remote and rural areas of developing countries can lead to inexpensive electrical power systems, essentially powered by waste heat from daily cooking activities. In this paper the modelling, design, construction and testing of a laboratory demonstrator of such generator is outlined. A travelling-wave thermoacoustic engine with a looped-tube configuration is modelled using DeltaEC tool and constructed to convert heat input to acoustic power. Flue gas from a propane burner is used as a heat source for demonstration purposes. An audio loudspeaker is connected to a side branch and adopted as the electro-dynamic transducer for electricity production. Atmospheric air is employed as the working fluid to keep the cost of future systems low. The demonstrator produced just under 20 W of electricity with thermal-to-acoustic and thermal-to-electric efficiencies of around 3.5% and 1.9 respectively, which demonstrates the micro-power source concept. Experimental results and their numerical validation are outlined and analysed.

KW - cooking

KW - developing countries

KW - electricity generator

KW - micro-power

KW - thermoacoustics

KW - waste heat

U2 - 10.1016/j.energy.2017.05.029

DO - 10.1016/j.energy.2017.05.029

M3 - Article

VL - 134

SP - 1107

EP - 1120

JO - Energy

JF - Energy

SN - 0360-5442

ER -