技术中心

【英文篇名】 Simulation study on cooling potential of multi-tube earth-air tunnels 【下载频次】 ☆ 【作者】 宋凌; 朱颖心; 【英文作者】 Song Ling and Zhu YingxinCenter of Science and Technology of Construction; Ministry of Housing and Urban-Rural Development; Beijing; China; 【作者单位】 住房和城乡建设部科技发展促进中心; 清华大学; 【文献出处】 暖通空调 , Heating Ventilating nbsp; 期刊荣誉：中文核心期刊要目总览 ASPT来源刊 中国期刊方阵 CJFD收录刊 【中文关键词】 多管地道; 地道降温; 修正温度; 【英文关键词】 multi-tube earth-air tunnel; cooling potential of earth-air tunnel; modified temperature; 【摘要】 以三维非稳态固体导热模型和一维流体传热模型为基础,采用有限差分法,建立了考虑管间传热影响的多管地道降温传热模型,并通过与实测数据的比较,验证了其正确性。采用修正温度简化了多管地道降温算法。分析了管数、埋管深度和管间距对地道降温效果的影响。 【英文摘要】 Based on a 3-D unsteady heat conducting mode and a 1-D liquid heat transfer mode,establishes heat transfer mode of multi-tube earth-air tunnel by using finite difference method.Verifies the correctness of this mode by comparison between simulated data and test data.Develops a simplified method with a modified temperature.Analyses the influences of tube number,depth of buried tube and tube spacing on cooling potential of multi-tube earth-air tunnels.