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高温材料处理:国际期刊

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ISSN 打印: 1093-3611

ISSN 在线: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

Indexed in

CONSTANT-VOLUME FOUR-LINED GAS-DISTRIBUTING COMBUSTION CHAMBER OF SPOOL-TYPE CONFIGURATION

卷 18, 册 1-2, 2014, pp. 71-82
DOI: 10.1615/HighTempMatProc.2015014493
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摘要

A constant-volume high-performance spool-type combustion chamber has been designed to operate in advanced propulsion systems where pulsating operating processes occur. The chamber can be applied in pulsejet engines as a detonation initiator of detonation engines, gas-dynamic lasers, and MHD generators.
The article is focused on the development of a low-pressure fuel-supply system and a four-lined intermittent combustion chamber. When testing a diesel fuel-supply system, the functional capability of a single-lined combustion chamber reached a vibration frequency of 100 Hz. The value of the compression ratio during combustion was λ = 7. In order to ensure a continued improvement of speed rate and weight dimension characteristics of the combustion chamber, it is necessary to increase the operating vibration frequency (spool speed rate n). The analysis indicated that with n ≥ 4000 rpm, the delay time of the air-fuel mixture ignition by the chamber wall is sufficient for complete overlapping of the spool-valve port by the ignition time, i.e., the flame-out at the chamber input is impossible. The objective to raise the speed rate was therefore achieved by using a simple low-pressure (0.4−0.8 MPa) continuous system of fuel supply to the inlet nozzle. During the tests carried out the designed fuel-supply system along with swirl-type nozzles provided a stable chamber operation up to 190 Hz. Thus, the maximum combustion temperature Tz exceeded 2000 K, and the engine designed on the single-lined chamber can match small-sized turbojet engines by the level of face thrust.

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