SGER: Optimizing the Hygrothermal Performance of Earth Bricks in Hot and Humid Climates

SGER：优化湿热气候下土砖的湿热性能

• 批准号: 0844612
• 负责人: Esther Obonyo
• 金额: --
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-10-01 至 2010-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0844612&HistoricalAwards=false
• 关键词: SGER; Optimizing; Hygrothermal; Performance; Earth

This is a SGER proposal to complement the PI's NSF-funded International Research Experiences (NSF-IRES) program in the East African region. The overarching aim of the proposed research is investigating adaptations that can be made to existing earth bricks to improve their hygrothermal performance in hot and humid climates such as Dar es Salaam. This will be achieved through a series of laboratory testing complemented with advanced computer modeling. The specific research objectives focus on assessing how wall made out of earth bricks can be engineered for optimal performance with respect to: 1) Water vapor permeability; 2) Hygroscopicity, and; 3) Capillarity. The findings will be used to develop a computer-based model for predicting the performance of earth bricks.It is now universally acknowledged that organic building materials such as earth bricks are more sustainable. However, there are still doubts with respect to their adequacy as far as mechanical properties are concerned. The proposed SGER research will contribute to credibility of the properties of the existing earth bricks. A key outcome of the proposed SGER research will be a hygrothermal material property database for earth bricks which will be published on the Web. The research will also bring together a team of foreign experts who are currently working in silos. The PI will provide research training for a female, graduate student through the SGER.

这是 SGER 的一项提案，旨在补充 PI 在东非地区由 NSF 资助的国际研究经验 (NSF-IRES) 项目。拟议研究的总体目标是调查对现有土砖的改造，以提高其在达累斯萨拉姆等炎热潮湿气候下的湿热性能。这将通过一系列实验室测试并辅以先进的计算机建模来实现。具体研究目标侧重于评估如何设计土砖墙体以实现以下方面的最佳性能：1）水蒸气渗透性； 2) 吸湿性； 3）毛细现象。研究结果将用于开发基于计算机的模型来预测土砖的性能。 现在普遍认为土砖等有机建筑材料更具可持续性。然而，就机械性能而言，它们的充分性仍然存在疑问。拟议的 SGER 研究将有助于提高现有土砖性能的可信度。拟议的 SGER 研究的一个关键成果将是土砖的湿热材料特性数据库，该数据库将在网上发布。该研究还将汇集目前在各自领域工作的外国专家团队。 PI 将通过 SGER 为一名女性研究生提供研究培训。