Results 11 to 20 of about 850 (142)

Experimental results of a waste-heat powered thermoacoustic refrigeration system for ships

open access: yesScience and Technology for Energy Transition, 2023
Greenhouse gas emissions are a major concern for maritime transport. The International Maritime Organization (IMO) presents Waste Heat Recovery Systems (WHRS) from engine exhaust gas as a viable solution to improve energy utilization and reduce ...
Thiaucourt Jonas   +2 more
doaj   +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

Using a side-branched volume to tune the acoustic field in a looped-tube travelling-wave thermoacoustic engine with a RC load [PDF]

open access: yes, 2017
Travelling-wave thermoacoustic engine utilises a compact acoustic network to obtain a right time-phasing between the acoustic velocity and pressure oscillations within the regenerator to force gas parcels to experience a Stirling-like thermodynamic cycle.
Al-Kayiem, Ali, Yu, Zhibin
core   +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

Optimization of a thermoacoustic refrigerator with an evolutionary algorithm approach [PDF]

open access: yes, 2016
Current non-environmentally friendly refrigerants released into our environment have caused serious concern over reports of the depleting of the ozone layer and global warming.
Mohd. Ghazali, Normah   +1 more
core   +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 refrigeration for space applications

open access: yesSpace Programs and Technologies Conference, 1991
A thermoacoustic refrigerator has been designed, tested, and certified by NASA to be flown aboard the space-shuttle get-away-special (GAS) payload program on STS-42 in January 1992. This thermoacoustic heat pump uses acoustic power to pump heat from a low-temperature source to a high-temperature sink. It has only 15 g of moving mass operating at 400 Hz,
Garrett, Steven L.   +2 more
openaire   +2 more sources

Single-objective optimization of a thermoacoustic refrigerator [PDF]

open access: yes, 2014
Optimization of energy-related systems with by-products that involve environmental degradation has never been so crucial today with depleting resources and global concerns over negative impacts on our environment.
Ahmad, Robiah   +2 more
core   +1 more source

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  

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