摘要
针对含内热源的埋地管道,建立了管道与周围土壤之间的传热模型。模型考虑了地表温度随季节变化,采用数值计算方法编制程序进行计算,得出管道温度随年代的变化规律。根据实际模型,建立缩小的相似性实验台进行验证,结果表明数值计算具有很好的准确性。最后,利用本模型预测了电力隧道在无通风条件下连续运行50a内的温度变化情况。
A numerical model was developed to analyze the heat transfer phenomena between soil and buried pipe which an internal heat source. Seasonal temperature variation of earth surface was considered in the model, and a program was developed to calculate temperature distribution of pipe with time. A similarity experiment was used to validate the numerical model by comparing their results, which confirmed the accuracy of the proposed model. Finally, temperature distribution through 50 years of an underground power transmission tunnel without ventilation was calculated.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第6期727-731,共5页
Acta Energiae Solaris Sinica
