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| Nanomaterials for Energy Related Applications Photocatalytic Sequestration of Carbon Dioxide | |
| 项目编号 | DE-FG02-01ER45859 |
| Sun, Ya-Ping | |
| 项目主持机构 | Clemson University |
| 开始日期 | 2000-11-01 |
| 结束日期 | 2003-10-31 |
| 英文摘要 | Project Research Results Final Report 1999 Progress Report 1998 19 publications for this project 4 journal articles for this project Related Information Research Grants P3: Student Design Competition Research Fellowships Small Business Innovation Research (SBIR) Grantee Research Project Results Search Chemical-Transport Modeling of the Global Atmosphere Environmental Problems: Evaluations, Comparisons and Initial Studies EPA Grant Number: R826384 Title: Chemical-Transport Modeling of the Global Atmosphere Environmental Problems: Evaluations, Comparisons and Initial Studies Investigators: Wuebbles, Donald J. , Brasseur, Guy , Kotamarthi, V. Rao Current Investigators: Wuebbles, Donald J. , Kotamarthi, V. Rao Institution:University of Illinois at Urbana-Champaign , National Center for Atmospheric Research Current Institution:University of Illinois at Urbana-Champaign EPA Project Officer: Hahn, Intaek Project Period: April 1, 1998 through March 31, 2001 Project Amount: $312,334 RFA: Exploratory Research - Environmental Chemistry (1997)RFA Text | Recipients Lists Research Category:Water ,Land and Waste Management ,Air ,Engineering and Environmental Chemistry Description: There are many environmental issues and scientific problems where the capabilities of global scale three-dimensional models of the chemistry and physics of the troposphere and stratosphere will be required. However, up to this time, existing three-dimensional models have largely used a number of simplifying assumptions to make these models more computationally efficient. In the exploratory research project proposed, the University of Illinois will coordinate with the National Center for Atmospheric Research in the development, testing, and evaluating of a new three-dimensional chemical-transport model where such simplifications have been greatly minimized.After testing and evaluation of the model in comparison with available observations, initial research studies with the model will focus primarily on the oxidizing capacity of the atmosphere. Many compounds, including most of the replacement compounds being used and/or considered for CFCs, halons, and other controlled chemicals, are designed to react in the troposphere, largely with OH. Improved understanding of the oxidative capacity of the atmosphere is essential for estimating the lifetimes of these compounds correctly and to predict the fate of their degradation products in the troposphere. The sensitivity of model calculated tropical oxidant concentrations to perturbations, including biomass burning, will be investigated. The calculated oxidant field will be tested with an off-line simulation of CH3CCl3 and compared with observations. Sensitivity of model calculated lifetimes of short-lived (~ months) replacements to temporal and spatial variabilities of the source will be investigated.We expect as a result of this project to reduce the uncertainties in calculating the tropospheric lifetimes of such replacement compounds and to provide an improved understanding of the oxidizing capacity of the atmosphere and the changes that may be occurring to it. |
| 英文关键词 | global warming;nitrogen budget;semi-volatile organochlorines |
| 学科分类 | 1103 - 工程热物理与能源利用;11 - 工程与技术;04 - 物理学 |
| 资助机构 | US-DOE |
| 项目经费 | 224950 |
| 项目类型 | Grant |
| 国家 | US |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/77053 |
| 推荐引用方式 GB/T 7714 | Sun, Ya-Ping.Nanomaterials for Energy Related Applications Photocatalytic Sequestration of Carbon Dioxide.2000. |
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