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摘要: |
在对液体蒸发过程中的热量传递进行详细分析的基础上,推导建立了液体蒸发计算模型,并给出了求解方法。设计了风洞实验台,并通过对液体苯蒸发过程的实验研究,对新建模型进行了实验验证。结果 表明,新建模型能够比较准确地预测液体蒸发过程中蒸发质量和液体温度随时间的变化,其预测平均值分别比实验测量值偏大3.5%和3%,从安全的角度来讲是有利的。而在预测准确度方面,新建模型的预测绝对偏差分别为15%和5%,预测精度较高。最后,对导致偏差产生的原因进行了分析,并指出了新建模型存在的不足。 |
关键词: 蒸发 传热传质 模型 风洞实验 |
DOI: |
分类号:TQ433.432 |
基金项目:国家自然科学基金重点项目资助(No.29936110)、教育部骨干教师资助计划项目资助. |
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The Evaporation Model of Heat and Mass Transfer Coupling for Mono-component Liquid and Its Experimental Verification |
Pan Xuhai Hua Min Gong Hongwei et al
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Abstract: |
Based on analysis of heat transfer in the process of liquid evaporation in details, an evaporation model was developed and the calculation method was also provided. The wind tunnel experiment equipment was designed and experimental evaporation process of |
Key words: evaporation,heat and mass transfer, model, wind tunnel experiment |