Results 11 to 20 of about 124 (117)

Effects of cold‐end temperature and heat load on the cooling characteristics of a pulse tube refrigerator

open access: yesEnergy Science &Engineering, Volume 8, Issue 3, Page 731-739, March 2020., 2020
A coupling model of the PTR by using REGEN and DeltaEC is built for investigating the effects of the cold‐end temperature and cold load on the cooling efficiency. Some experiments are performed on a PTR working at different cold‐end temperature and cold load which are in good agreement with the simulation results.
Shaoshuai Liu   +5 more
wiley   +1 more source

Numerical Modeling and Performance Evaluation of Standing Wave Thermoacoustic Refrigerators with a Multi-Layered Stack

open access: yesEnergies, 2020
Thermoacoustic refrigerators have huge potential to replace conventional refrigeration systems as an alternative clean refrigeration technology. These devices utilize conversion of acoustic power and heat energy to generate the desired cooling. The stack
Umar Nawaz Bhatti   +3 more
doaj   +1 more source

Thermoacoustic Refrigerator for High Temperature Gradient

open access: yesMATEC Web of Conferences, 2018
Leakage of HFCs, thermal shocks to sensitive devices, moving mechanical components which in turn require more maintenance, are some of the cons of a conventional vapor compression system .The newest field in refrigeration overcoming such flaws is ...
Mishra Abhishek   +3 more
doaj   +2 more sources

A compact standing-wave thermoacoustic refrigerator driven by a rotary drive mechanism

open access: yesCase Studies in Thermal Engineering, 2020
The design, the manufacture and the testing of a novel refrigeration system that is based on the thermoacoustic energy-conversion technology is reported.
Ahmed I. Abd El-Rahman   +5 more
doaj   +1 more source

Numerical Simulation and Analysis of Gas-liquid Coupled Double-acting Thermoacoustic Refrigeration System

open access: yesZhileng xuebao, 2021
A novel type of gas–liquid coupled double-acting traveling-wave thermoacoustic refrigeration system is proposed to solve the low efficiency of traditional thermoacoustic refrigeration with a gas resonance tube.
Chi Jiaxin   +4 more
doaj  

Thermoacoustic Engines and Refrigerators [PDF]

open access: yesPhysics Today, 1995
We ordinarily think of a sound wave in a gas as consisting of coupled pressure and displacement oscillations. However, temperature oscillations always accompany the pressure changes. The combination of all these oscillations, and their interaction with solid boundaries, produces a rich variety of “thermoacoustic” effects. Although these effects as they
openaire   +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

Heat-driven Thermoacoustic Cooling Technology: A Review and Perspective

open access: yesZhileng xuebao, 2022
Heat-driven thermoacoustic cooling technology utilizes the acoustic power generated by a thermoacoustic engine to drive a thermoacoustic cooler to realize thermal–acoustic–cooling energy conversion.
Xu Jingyuan, Luo Ercang
doaj  

Small and Medium-scale Power Generation Devices Suiting for Distributed Combined Cooling, Heating and Power System

open access: yes发电技术, 2020
Combined cooling, heating and power (CCHP) system is a new type of distributed energy supply technology, which is small scale and close to users. It can avoid the energy loss during long-distance energy transmission process, and has the characteristics ...
Xiaodong XUE   +3 more
doaj   +1 more source

Numerical Simulation of Thermoacoustic Wave Induced by Thermal Effects by Using Discontinuous Galerkin Method

open access: yesModelling and Simulation in Engineering, Volume 2018, Issue 1, 2018., 2018
This paper describes a numerical model based on discontinuous Galerkin method for thermoacoustic investigation. Numerical investigation was conducted to study the behaviour of thermoacoustic wave propagations induced by thermal effects in 2‐dimensional enclosure. The compressible Navier‐Stokes equations are used as the governing equations.
Pranowo Pranowo   +2 more
wiley   +1 more source

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