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Indexed by:期刊论文

Date of Publication:2022-06-27

Journal:中国科技论文

Affiliation of Author(s):化工学院

Issue:6

Page Number:717-720

ISSN No.:2095-2783

Abstract:To systemically study the influences of operating parameters on the pressure oscillation tube ,the experimental platform of pressure oscillating tube with double opens is established ,the relationship between operation parameters i .e .speed ,expansion ratio ,pressure of high‐temperature outlet and refrigeration efficiency of pressure oscillating tube with double opens has been in‐vestigated .The results indicate that with the increase of rotational speed ,isentropic refrigeration efficiency of the oscillating tube is firstly increased and then decreased ,and there is the optimal rotational speed .When the expansion ratio is 3 ,the best rotation‐al speed is about 2 600 r/min .With the increase of expansion ratio ,isentropic refrigeration efficiency of the oscillating tube is firstly increased and then decreased ,and there is the optimal expansion ratio ,When the rotational speed is 2 825 r/min ,the best expansion ratio is about 3 .0 .With the increase of pressure of high‐temperature outlet ,the isentropic refrigeration efficiency in‐creased first and then decreased sharply ,and there is the optimal pressure of high‐temperature outlet .When the rotational speed is 2 927 r/min ,the best pressure of high‐temperature outlet is about 0 .22 MPa ,The results of the study will guide the design and operation of the refrigerator and promote the pressure oscillating tube refrigeration technology applications .

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