J. Busnardo‐Neto, V. A. Rodrigues, H. Bockelmann, P. H. Sakanaka
{"title":"30kw等离子炬的特性","authors":"J. Busnardo‐Neto, V. A. Rodrigues, H. Bockelmann, P. H. Sakanaka","doi":"10.1109/PLASMA.1989.166037","DOIUrl":null,"url":null,"abstract":"A 30-kW torch for heating air has been built using scaling law techniques. The current-voltage characteristics were determined over a wide range of parameters: 60 to 120 A, 200 to 460 V, and gas flows of 2.8 to 13.7 g/s. The thermal efficiency varied from 62% to 76%. The results yield the expected V infinity I/sup -0.3/ law. The result with the highest mass flow suggests that higher injection velocities may play a role. Experience showed that the erosion of the cathode plays an important role in the operation of the torch. Eroded cathodes systematically yielded lower voltages, lower power levels, and lower efficiencies.<<ETX>>","PeriodicalId":165717,"journal":{"name":"IEEE 1989 International Conference on Plasma Science","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Characteristics of a 30 kW plasma torch\",\"authors\":\"J. Busnardo‐Neto, V. A. Rodrigues, H. Bockelmann, P. H. Sakanaka\",\"doi\":\"10.1109/PLASMA.1989.166037\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A 30-kW torch for heating air has been built using scaling law techniques. The current-voltage characteristics were determined over a wide range of parameters: 60 to 120 A, 200 to 460 V, and gas flows of 2.8 to 13.7 g/s. The thermal efficiency varied from 62% to 76%. The results yield the expected V infinity I/sup -0.3/ law. The result with the highest mass flow suggests that higher injection velocities may play a role. Experience showed that the erosion of the cathode plays an important role in the operation of the torch. Eroded cathodes systematically yielded lower voltages, lower power levels, and lower efficiencies.<<ETX>>\",\"PeriodicalId\":165717,\"journal\":{\"name\":\"IEEE 1989 International Conference on Plasma Science\",\"volume\":\"35 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-05-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1989 International Conference on Plasma Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PLASMA.1989.166037\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1989 International Conference on Plasma Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PLASMA.1989.166037","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 30-kW torch for heating air has been built using scaling law techniques. The current-voltage characteristics were determined over a wide range of parameters: 60 to 120 A, 200 to 460 V, and gas flows of 2.8 to 13.7 g/s. The thermal efficiency varied from 62% to 76%. The results yield the expected V infinity I/sup -0.3/ law. The result with the highest mass flow suggests that higher injection velocities may play a role. Experience showed that the erosion of the cathode plays an important role in the operation of the torch. Eroded cathodes systematically yielded lower voltages, lower power levels, and lower efficiencies.<>
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