Ecological performance optimization of a thermoacoustic cooler
نویسندگان
چکیده
منابع مشابه
Coefficient of Performance Optimization of a Single Stage Thermoelectric Cooler
In thermoelectric coolers (TECs) applied external voltage potential is generated to a temperature difference based on the Peltier effect. Main and basic structure of TECs is in the form of single stage device. Due to the low efficiency, especially low coefficient of performance (COP) of thermoelectric coolers, optimal design of geometrical parameters of such devices is vital. For this purpose, ...
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The experimental studies of thermoacoustic cooler consisting of acoustic loop-tube were carried out. The loop-tube was filled with the mixture of air and helium gas or air at atmospheric pressure. The dimensions of the loop-tube were 3.3 m of length, 44 mm of inner diameter and 4 mm of thickness. A pair of stacks (stack 1 and stack 2) which were sandwiched between two heat exchangers was placed...
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An acoustic field spontaneously induced in a thermoacoustic prime mover consisting of a looped tube and resonator is determined through simultaneously measurements of pressure P and velocity U. A thermal efficiency of the thermoacoustic prime mover of this type has been reported to reach 30%. The measurements of the acoustic field in the present system revealed that a phase lead of U relative t...
متن کاملDesign , Construction and Resonance Tracking of a Laboratory - Scale , Loudspeaker - Driven Thermoacoustic Cooler Autumn Term 2013
This thesis describes the design, construction and control of a quarter-wavelength, loudspeaker-driven thermoacoustic refrigerator. The stack and resonator design is based on linear thermoacoustic theory combined with numerical simulations in the thermoacoustic design software DeltaEC. The mechanical layout focuses on experimental flexibility and ease of maintenance, which leads to a modular sy...
متن کاملDesign of a Traveling Wave Thermoacoustic Engine Driven Cooler with Hybrid Configuration
Kees de Blok proposed a “hybrid configuration” travelling wave thermoacoustic engine and his prototype using atmosphere air as the working gas achieved an onset temperature difference as low as 65 K. However, no further research work has been reported on this type of thermoacoustic engine to reveal whether this type of engine can achieve higher efficiency, or how to couple it with acoustic load...
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ژورنال
عنوان ژورنال: International Journal of Low-Carbon Technologies
سال: 2009
ISSN: 1748-1317
DOI: 10.1093/ijlct/ctp038