【作者】 胡世华；

【导师】 郑爱平；

【作者基本信息】 长安大学 ， 建筑与土木工程， 2009， 硕士

【摘要】 近年来,随着城市化进程的加快,城市建设快速发展,城市规模不断扩大,城市人口急剧膨胀,许多城市不同程度地出现了建筑用地紧张、生存空间拥挤、交通堵塞、基础设施落后、生态失衡、环境恶化等城市病,给人们居住、生活带来了很大影响,制约了城市经济发展和社会的进步,成为现代化城市可持续发展的障碍。在这样的背景下,城市地下空间开发利用迫在眉睫。城市地下建筑建成后内部环境的舒适度直接影响其使用效率。建成使用时对室内温湿度的控制非常关键。建筑处在地下,地面气候对其影响很小,再加之岩土的热力特性,决定了地下建筑的散热、散湿很困难,从而影响其热环境的状况,这就需要良好的通风条件来保证。地下建筑的这些特点使得地下建筑实际体形系数小,隔热性好而蓄热量大,能在严酷多变的外界气候条件下保持相对舒适稳定的室内环境,使得地下建筑的空调负荷降低,从而降低空调能耗。而空调系统的能耗在建筑能耗中所占的比重很大,不管是地下建筑还是地面建筑,空调节能在当前建设节约型环境时期显得尤为重要。本文用Fluent计算软件模拟了西安市某服装城地下与地面空调房间内的流场和温度场,通过模拟结果比较了地下建筑与地面建筑的空调能耗。通过地下与地面商场的工程实例简要对比了地下建筑与地面建筑的能耗。更多还原

【Abstract】 With the acceleration of urbanization process, the rapid development of urban construction and scale, and the rapid expansion of the population, there were more and more problems,such as,the tensions of building land, the overcrowding of living space,,the jam of traffic, the poor of infrastructure,the imbalance of ecological and the deterioration of the environment,these led to the impact on lives, restricted the economic development and social progress, become to the opponent of the development of modern cities. In this background, the development and utilization of urban underground space is urgent.After the completion of construction, underground internal environment directly affect their efficiency of use. It is critical of the controlling of internal environment.Construction in the underground, the ground has little effect on climates, and couples with the thermal properties of rock and soil, which determines that the difficult to wet and heat dispersion, thus affecting the thermal state of the environment, which requires good atmospheric conditions. These characteristics results in small coefficient of building, good thermal insulation and large heat storge. keep comfortable indoor environment, lowing air conditioning load and reducing energy consumption. Air-conditioning energy consumption in building energy consumption accounts for a large portion, regardless of the ground or underground construction, it is particularly important for everyone to save the air-conditioning energy consumption.In this paper, we used Fluent to simulate the flow fields and temperature fields of the underground and ground clothing room of Xi’an. By the simulation, we compared the air-conditioning energy consumption with underground and ground building. Simultaneously, we compared energy consumption with the underground and ground department store.更多还原