| 残存气体对高温真空集热管热损失的影响研究 |
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| 引用本文： | 王军,龚广杰,黄鑫炎,郝梦龙.残存气体对高温真空集热管热损失的影响研究[J].太阳能学报,2011,32(1):107-111. |
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| 作者姓名： | 王军 龚广杰 黄鑫炎 郝梦龙 |
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| 作者单位： | 东南大学太阳能技术研究中心,南京,210096 |
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| 摘 要： | 从理论上分析了残存气体在不同压强下的传热机理,同时以东南大学和三乐集团近期开发的新型高温真空集热管为研究对象,采用特制的排气系统和真空计,在集热管环状空间不同真空度条件下测试了相应的热损失。结果表明实验与理论分析吻合,残存气体会在传热机理和材料特性两方面同时造成真空集热管的热损失显著提高。
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| 关 键 词： | 光热 抛物线槽式 真空集热管 残存气体 热损失 |
AN OVERALL STUDY OF RESIDUAL GAS EFFECT ON THE HEAT LOSS OF HIGH TEMPERATURE VACUUM SOLAR RECEIVER |
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| Wang Jun,Gong Guangjie,Huang Xinyan,Hao Menglong.AN OVERALL STUDY OF RESIDUAL GAS EFFECT ON THE HEAT LOSS OF HIGH TEMPERATURE VACUUM SOLAR RECEIVER[J].Acta Energiae Solaris Sinica,2011,32(1):107-111. |
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| Authors: | Wang Jun Gong Guangjie Huang Xinyan Hao Menglong |
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| Affiliation: | Wang Jun,Gong Guangjie,Huang Xinyan,Hao Menglong (Solar Energy Research Center,Southeast University,Nanjing 210096,China) |
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| Abstract: | In order to evaluate the receiver thermal properties in possible leakage situations,a theoretical analysis on different heat transfer mechanisms of residual gas in various pressures was carried out.In the meantime,a new high temperature vacuum receiver recently developed and produced by Southeast University and Sanle Electronic Group was studied by adopting special exhaust system and vacuum gauge.Thermal properties of the receiver under different annulus pressures were tested.Results showed that theoretical... |
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| Keywords: | solar thermal parabolic trough vacuum receiver residual gas thermal properties |
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