英文文献汇报 汇报人：XXX 时 间：2019.11.21
Numerical simulation and experiments with green roofs for increasing indoor thermal comfort 期刊：《Journal of the Chinese Institute of Engineers 》关键字 大面积的绿色屋顶； 节能减排; 有限元分析; 室内热舒适度
目 录 摘 要 试验过程 试验结果 结论
摘 要 绿色屋顶不仅可以改善建筑美学，还有助于城市地区的可持续发展。 由于现代城市缺少绿地，因此近年来绿色屋顶被广泛使用。 本 文着重于绿色屋顶的热性能和有限元分析模型的发展，以改善室内热舒 适性。 对台北的一栋教学楼进行了全面的实地试验，以验证分析模型 并调查广泛的绿色屋顶的实际收益。 结果发现，绿色屋顶在冬季几乎 没有隔热效果，而在夏季则具有显着的降温效果，这将使室内温度降低 至4°C。
实 验 过 程
理论分析 1.蒸散作用：包括两个水分蒸发过程--从土壤表面和叶片表面的蒸发，以及通过叶片气孔的蒸腾作用 为了描述通过植物冠层的太阳辐射，假设冠层是一个均 匀的层，由随机排列的水平叶片和冠层LAI 组成，LAI 是每单 位地面面积的总投影叶面积。然后通过冠层的辐射可以表示 为R 是入射的太阳辐射，Rn 是通过冠层到达地表的净太阳辐 射 ET0为参考蒸散率；Δ为温度-蒸气压曲线斜率，为气温Tamb 的函数；Rn 为太阳净辐射；G 为土壤热通量；γ为湿度常数；u2为作物上方2m 处测得的风速；es 为饱和蒸气压；ea 为实际蒸气压蒸汽压，取决于湿度和温度。 ET ：实际的蒸散速率 2.太阳辐射：植物直接遮荫有助于减少太阳辐射向结构屋顶的转移，减缓室内空气温度的飙 升
Time：30 seconds(0:00~0:30) Say: Hello everyone, nice to see all of you . It’s my turn to give the presentation. The topic of mine is “Preliminary Thermal-hydraulic Design and Analysis of China Lead Alloy Cooled Research Reactor (CLEAR-I)”. Author’s names are writing on the middle of this slide, you can see. And my name is Ash. This paper is in the area of nuclear physics. I hope you will enjoy it, let’s begin. Time: 50 seconds(0:30~1:20) Say: Let’s see the background first. Nuclear power is an attractive way to solve the energy dilemma. There are so many pressurized water reactors (PWR) have been built. So much nuclear waste have been produced every year. We need a system to do with nuclear waste.The accelerator driven system (ADS) is a potential option of a transmutation system in terms of the partitioning and transmutation strategies for the radioactive waste in the advanced nuclear fuel cycle. What’s more, a natural circulation cooled reactor thermal-hydraulic calculation model had been built up by I Time: 30 seconds(1:20~1:50) Say: Let’s see the feature of CLEAR-I.PWR’s coolant is water. Different from PWR,CLEAR-I use lead-bismuth as coolant. lead-bismuth has high heat transfer coefficient and large heat capacity. CLEAR-I is a research reactor, which is not intersecting in power generation or high neutron flux. So it’s power only have https://www.doczj.com/doc/297539245.html,ing natural circulation, the system is more safety. Time: 30 seconds(1:50~2:10) Say: This is the structure of our CLEAR-I reactor. CLEAR-I is a pool-type reactor using a cylindrical heat barrier to divide the PbBi pool into a hot pool and a cold pool. The primary coolant is driven by natural circulation. So, we do not need pumps. Time: 20 seconds(2:20~2:40) Say: The model is complex. We use Boussinesq approximation to simplify models and assumes that the riser and down comer are adiabatic. Though simplifying models, we can simplify iteration Using impulse equation and energy equation describe the problem. nstitute of Nuclear Energy Safety Technology. Time: 10 seconds(2:40~2:10) Say: The impulse equation, the pressure losses and the energy equation can be described as this. Time: 30 seconds(2:50~3:20) Say: As a research reactor, the design constraints are focus on safety and experiment utility value. Three main limit values include maximum fuel temperature limit, maximum cladding temperature limit and maximum coolant velocity limit were chosen as CLEAR-I design constrains. This table show the specific values of each constrain. Time: 40 seconds (3:20~4:00) Say: Let’s see the table 2 an table 3. A summary of core geometry parameters are presented in Table 2.
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Table of Contents (字体Times New Roman, 四号，) （空一行） 1. Introduction (4) 2. Sample title (4) 2.1 Sample title (4) 2.1.1 Sample title (4) 2.1.2 Sample title (4) 2.2 Sample title (5) 2.3 Sample title (5) 3. Conclusion (5) Bibliography (6) Appendices I (7) （制作目录请选择菜单中的：插入——引用——索引和目录——目录——确定，即可，然后将字体改为小四号。不要自己输入）
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