Results 21 to 30 of about 192 (119)

Numerical and experimental investigation on the effect of regenerator mesh size on performance of the traveling wave thermoacoustic-stirling heat engine

open access: yesCase Studies in Thermal Engineering, 2020
Traveling wave thermoacoustic-Stirling heat engine is a unique device that is used to convert heat energy to acoustic work. In this article, the thermoacoustic engine is modeled, manufactured and tested.
Mahesh Krishna Gaikwad, Pradeep A. Patil
doaj   +1 more source

Selection and experimental evaluation of low-cost porous materials for regenerator applications in thermoacoustic engines [PDF]

open access: yes, 2010
This paper aims at evaluating three selected low-cost porous materials from the point of view of their suitability as regenerator materials in the design of thermoacoustic travelling-wave engines.
Yu, Z.   +11 more
core   +1 more source

Numerical computation for parallel plate thermoacoustic heat exchangers in standing wave oscillatory flow [PDF]

open access: yes, 2011
A simplified computational method for studying the heat transfer characteristics of parallel plate thermoacoustic heat exchangers is presented. The model integrates the thermoacoustic equations of the standard linear theory into an energy balance-based ...
Piccolo, Antonio, A. Piccolo
core   +1 more source

Heat transfer processes in parallel-plate heat exchangers of thermoacoustic devices - Numerical and experimental approaches [PDF]

open access: yes, 2012
This paper addresses the issues of heat transfer in oscillatory flow conditions, which are typically found in thermoacoustic devices. The analysis presented concerns processes taking place in the individual "channels" of the parallel-plate heat ...
Piccolo, A   +3 more
core   +1 more source

Sustainable Energy Solutions for Irrigation and Harvesting in Developing Countries [PDF]

open access: yes, 2013
One of the critical problems currently being faced by agriculture industry in developing nations is the alarming rate of groundwater depletion. Irrigation accounts for over 70% of the total groundwater withdrawn everyday.
Mehrotra, Prakhar
core   +1 more source

Mover guide in a linear electric generator with double‐sided stationary stators

open access: yesThe Journal of Engineering, Volume 2019, Issue 17, Page 3986-3990, June 2019., 2019
This study addresses double‐sided stationary stators in a linear electric generator with similar operation to a linear oscillatory motion electric machine. The plate mover in the linear electric generator's double‐sided stationary stators is powered by the acoustic power output of the thermoacoustic engine's acoustic line.
Pierre Kenfack   +2 more
wiley   +1 more source

Energy Harvesting with Piezoelectric Element Using Vibroacoustic Coupling Phenomenon

open access: yesAdvances in Acoustics and Vibration, Volume 2013, Issue 1, 2013., 2013
This paper describes the vibroacoustic coupling between the structural vibrations and internal sound fields of thin structures. In this study, a cylindrical structure with thin end plates is subjected to the harmonic point force at one end plate or both end plates, and a natural frequency of the end plates is selected as the forcing frequency.
Hiroyuki Moriyama   +3 more
wiley   +1 more source

Thermodynamics Performance Analysis of Solar Stirling Engines

open access: yesInternational Scholarly Research Notices, Volume 2012, Issue 1, 2012., 2012
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.
A. Asnaghi   +5 more
wiley   +1 more source

Numerical analysis on a four-stage looped thermoacoustic Stirling power generator for low temperature waste heat [PDF]

open access: yes, 2017
Recent developments in thermoacoustic technologies have demonstrated that multi-stage looped thermoacoustic Stirling engine would be a promising option for harvesting waste heat.
Qiu, Limin   +3 more
core   +1 more source

The myth of the high-efficiency external-combustion Stirling engine [PDF]

open access: yes, 2015
The reported discrepancy between theory and experiment for external combustion Stirling engines is explained by the addition of thermal resistance of the combustion gasses to the standard Carnot model. In these cases, the Stirling engine ideal efficiency
Riley, P. H., Riley, Paul Howard
core   +1 more source

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