南京理工大学学报(自然科学版)
南京理工大學學報(自然科學版)
남경리공대학학보(자연과학판)
JOURNAL OF NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
2014年
1期
111-117
,共7页
吕倩%胡家渝%刘娟%成丹凤
呂倩%鬍傢渝%劉娟%成丹鳳
려천%호가투%류연%성단봉
热管冷板%温度循环试验%传热性能%寿命预估
熱管冷闆%溫度循環試驗%傳熱性能%壽命預估
열관랭판%온도순배시험%전열성능%수명예고
heat pipe cold plates%temperature cycle test%heat transfer characteristics%estimated life time
为考察热管冷板在机载条件下的适用性,设计一种温度循环试验方案对不同类型及同类型不同配置方式的9种热管冷板进行试验研究。根据温度循环前后红外热像仪测试结果分析不同热管冷板的传热性能差异,并基于试验结果采用阿雷尼乌斯公式进行寿命预估。研究表明:温度循环前后,铝均温板因产生不凝性气体导致传热性能恶化,普通铜水热管冷板与微热管阵列冷板传热性能均未发生改变,可靠性较好;未发生恶化的热管冷板在最高工作温度下预估寿命至少为6627 h,可满足使用寿命要求。研究工作可为机载热管冷板的选择与设计提供参考依据。
為攷察熱管冷闆在機載條件下的適用性,設計一種溫度循環試驗方案對不同類型及同類型不同配置方式的9種熱管冷闆進行試驗研究。根據溫度循環前後紅外熱像儀測試結果分析不同熱管冷闆的傳熱性能差異,併基于試驗結果採用阿雷尼烏斯公式進行壽命預估。研究錶明:溫度循環前後,鋁均溫闆因產生不凝性氣體導緻傳熱性能噁化,普通銅水熱管冷闆與微熱管陣列冷闆傳熱性能均未髮生改變,可靠性較好;未髮生噁化的熱管冷闆在最高工作溫度下預估壽命至少為6627 h,可滿足使用壽命要求。研究工作可為機載熱管冷闆的選擇與設計提供參攷依據。
위고찰열관랭판재궤재조건하적괄용성,설계일충온도순배시험방안대불동류형급동류형불동배치방식적9충열관랭판진행시험연구。근거온도순배전후홍외열상의측시결과분석불동열관랭판적전열성능차이,병기우시험결과채용아뢰니오사공식진행수명예고。연구표명:온도순배전후,려균온판인산생불응성기체도치전열성능악화,보통동수열관랭판여미열관진렬랭판전열성능균미발생개변,가고성교호;미발생악화적열관랭판재최고공작온도하예고수명지소위6627 h,가만족사용수명요구。연구공작가위궤재열관랭판적선택여설계제공삼고의거。
In order to investigate the applicability of heat pipe cold plate under airborne environmental conditions,a temperature cycle test program is proposed to study the nine kinds of different heat pipe cold plates. According to the results tested by infrared thermal imager before and after temperature cycle,the performance differences of different heat pipe cold plates are analyzed. Based on the test results,the life time is predicted by the Arrhenius equation. The results show that the heat transfer characteristics of vapor chamber is deteriorated due to non-condensable gas generated before and after temperature cycle,but the performance of ordinary copper-water heat pipe cold plate and micro-heat pipe arrays have no change and they have better reliability;the estimated life time of unchanged heat pipe cold plates can be at least 6 627 hours at the highest operating tem-perature,meeting the life requirements. The research can provide some foundation for the selection and design of the heat pipe cold plate used for cooling the airborne electronic equipment.