Evaluation of thermal efficiency and energy conversion of thermoacoustic Stirling engines

Hu, Zhenzhen; Li, Zheng Yu; Li, Qing; Li, Qiang

doi:10.1016/j.enconman.2009.11.015

Cited by 40 publications

(10 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of the others focus on a specific type of Stirling engine, for example, free piston Stirling engine [7]. Considering specific operating conditions, for example, thermoacoustic conditions, are objective in many of these researches [8]. In all of these researches, the main objective is to calculate the optimum operating condition.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics Performance Analysis of Solar Stirling Engines

Asnaghi

Ladjevardi

Izadkhast

et al. 2012

ISRN Renewable Energy

View full text Add to dashboard Cite

This paper provides numerical simulation and thermodynamic analysis of SOLO 161 Solar Stirling engine. Some imperfect working conditions, pistons' dead volumes, and work losses are considered in the simulation process. Considering an imperfect regeneration, an isothermal model is developed to calculate heat transfer. Hot and cold pistons dead volumes are accounted in the work diagram calculations. Regenerator effectiveness, heater and cooler temperatures, working gas, phase difference, average engine pressure, and dead volumes are considered as effective parameters. By variations in the effective parameters, Stirling engine performance is estimated. Results of this study indicate that the increase in the heater and cooler temperature difference and the decrease in the dead volumes will lead to an increase in thermal efficiency. Moreover, net work has its maximum value when the angle between two pistons shaft equal to 90 degrees while efficiency is maximum in 110 degrees.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermodynamics Performance Analysis of Solar Stirling Engines

Asnaghi

Ladjevardi

Izadkhast

et al. 2012

ISRN Renewable Energy

View full text Add to dashboard Cite

show abstract

“…Low-emission propulsion/combustion systems are more susceptible to combustion instability. When combustion instability occurs [6][7][8][9][10][11], overheating might occur or the flame may be blow out. Such pressure oscillations may cause structural vibrations and other operational problems.…”

Section: Introductionmentioning

confidence: 99%

Characterizing premixed laminar flame–acoustics nonlinear interaction

Zhang

Guan

Zheng

et al. 2015

Energy Conversion and Management

View full text Add to dashboard Cite

“…These oscillations are mainly caused by the http://dx.doi.org/10.1016/j.apenergy.2015.04.026 0306-2619/Ó 2015 Elsevier Ltd. All rights reserved. energy transferred from the heat source to sound waves [10][11][12][13][14][15][16][17], which depends upon the nature of coupling between the flame and oncoming flow fluctuations [18,19]. Small amplitude flow disturbances can excite natural modes of combustion chamber and cause them to grow into a nonlinear limit cycle.…”

Section: Introductionmentioning

confidence: 98%