Results 11 to 20 of about 132 (123)

Modular thermoacoustic refrigerator [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1993
A thermoacoustic refrigerator was built to explore scaling to large heat flux. The refrigerator was constructed according to a modular design so that various stack, heat exchanger, and resonator sections are easily interchangeable. The resonator is driven by a commercial 10-in. woofer. Initial tests, using pure helium gas as the working fluid and steel
Steven R. Murrell, George Mozurkewich
openaire   +1 more source

Energy Applications of Magnetocaloric Materials

open access: yesAdvanced Energy Materials, Volume 10, Issue 10, March 10, 2020., 2020
The quest for energy‐efficient and environmentally friendly energy conversion technologies is more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives to existing technologies. This article gives an overview of energy applications of magnetocaloric materials.
Andrej Kitanovski
wiley   +1 more source

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

THERMOACOUSTIC REFRIGERATOR SYSTEM PERFORMANCE USING THE PVC (POLYVINYL CHLORIDE) STACK BY POWER INPUT VARIATION

open access: yesJurnal Neutrino: Jurnal Fisika dan Aplikasinya, 2017
The thermoacoustic refrigerator is an innovative alternative and did not use substances that had a negative impact on the environment such as freon, but using air as the working substance.
Indah Kharismawati
doaj   +1 more source

Numerical investigation of porous stack for a solar-powered thermoacoustic refrigerator

open access: yesAdvances in Mechanical Engineering, 2020
This article proposes a numerical analysis for performance improvement of the stack, which represents a crucial element on the solar-powered thermoacoustic refrigerator.
Oumayma Miled   +2 more
doaj   +1 more source

Experimental Investigation on the Thermoacoustic Effect in Easily Accessible Porous Materials

open access: yesEnergies, 2020
Thermoacoustic devices are the systems which use acoustic power to transport heat through a stack in a resonance tube. The stack is one of the most important parts of the thermoacoustic systems.
Jakub Kajurek, Artur Rusowicz
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

Numerical analysis of a standing-wave thermoacoustic refrigerator by one-dimensional simulation

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, a numerical simulation for a standing-wave thermoacoustic refrigerator using the equations of conservation law are proposed. In this simulation, the gas flow in the thermoacoustic refrigerator is expressed by the quasi one-dimensional ...
Rin IRIE   +4 more
doaj   +1 more source

Freeze desalination via thermoacoustic cooling: System analysis and cost overview

open access: yesEnergy Nexus, 2023
Clean, drinkable water is essential for human health and well-being. However, access to clean water is becoming a global problem due to climate change and over exploitation of natural water resources. Desalination is widely accepted as a solution to meet
Ussama Ali   +3 more
doaj   +1 more source

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

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