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โœฆ   LIBER   โœฆ

Experimental research of thermoacoustic prime mover

โœ Scribed by Shuliang Zhou; Yoichi Matsubara

Book ID
104111510
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
462 KB
Volume
38
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

Measurements of thermoacoustic prime movers with stacks made of copper wire mesh are presented. The resonance frequencies are below 100 Hz, which are useful to drive pulse tube refrigerators. Onset temperature and resonance frequency were studied. It is found that under certain conditions the second harmonic component becomes dominant and the prime mover essentially works on the second mode, which should be avoided. The influence of gas properties, frequency, mean pressure, mesh size and stack length on the overall performance were measured and expressed in terms of normalized input power, heater temperature and pressure amplitude. A maximum output of 26 W from the thermoacoustic prime mover was achieved with the frequency, input power and heater temperature 73 Hz, 833 W and 700 K respectively.

๐Ÿ“œ SIMILAR VOLUMES

Experimental investigation on the onset
Experimental investigation on the onset and damping behavior of the oscillation in a thermoacoustic prime mover
โœ G.B Chen; T Jin ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 185 KB

Experiments have been made on the onset and damping behavior of the oscillation in a thermoacoustic prime mover with nitrogen as the working ยฏuids. In contrast to the traditions indicating that the damping point coincide with the onset one, we ยฎnd lags between the onset temperature and the damping t