CAREER: Mixed-Integer Nonlinear Programming Approaches for Hydrogen Production Systems

职业：制氢系统的混合整数非线性规划方法

• 批准号: 0238663
• 负责人: Edward Gatzke
• 金额: $ 43.14万
• 依托单位: University South Carolina Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0238663&HistoricalAwards=false
• 关键词: CAREER; Mixed; Integer; Nonlinear; Programming

Research:As the United States makes the transition to a hydrogen economy, various technical challenges must be met. For vehicle fuel cell applications, a need exists for efficient production of hydrogen from liquid fuels. Liquid fuel reformer methods for hydrogen production must consider thermal interaction, startup procedures, and operating condition changes before these systems can become a truly viable energy alternative. Efficient operation often requires that chemical processing systems work well in different operating conditions and/or close to safety limitations. Chemical reaction systems may exhibit varied dynamic behavior based on the current operating conditions (nonlinear dynamics) and can sometimes switch to qualitatively different modes of operation (hybrid dynamics). This project considers nonlinear hybrid dynamic systems and with process safety constraints. The proposed methods require computational solution of difficult numerical optimization problems involving unknown variables that may take either continuous or integer values (mixed-integer optimization). Specifically, development and application of deterministic mixed-integer nonlinear optimization techniques for nonlinear process control applied to hydrogen production systems are considered. This project also examines integration of research and education in the development of research-related educational tools and student programs with student impact at both the national and local level. Process control educational software will be developed for national dissemination. A cross-disciplinary undergraduate process control laboratory will be developed using a collaborative research-based environment. Here, enrollment would be encouraged from an existing National Science Foundation sponsored undergraduate research communication studio and student groups not normally drawn to systems engineering careers such as the Society of Women Engineers and National Society of Black Engineers. Finally, an outreach program will be started with graduate students presenting engineering demonstrations in area high schools. Impact Development and application of methods for improved operation of hydrogen production systems may have broad societal impact, aiding the transition to a hydrogen economy by improving system efficiency and speeding adoption of new technologies. In support of improved hydrogen production operation, development of novel chemical process control methods for complex nonlinear dynamic systems will be considered. Development of these concepts may have lasting effects across the chemical industry, in addition to improved hydrogen production system operation. Finally, development of improved general purpose deterministic mixed integer nonlinear programming solution methods may have impact across scientific and engineering disciplines.

随着美国向氢经济过渡，必须应对各种技术挑战。对于车辆燃料电池应用，需要从液体燃料有效地生产氢。用于制氢的液体燃料重整器方法必须考虑热相互作用、启动程序和操作条件变化，然后这些系统才能成为真正可行的能源替代品。有效的操作通常要求化学处理系统在不同的操作条件下和/或接近安全限制的情况下良好地工作。化学反应系统可以根据当前的操作条件表现出不同的动态行为（非线性动力学），有时可以切换到定性不同的操作模式（混合动力学）。本计画考虑非线性混杂动态系统及制程安全限制.所提出的方法需要计算解决困难的数值优化问题，涉及未知变量，可以采取连续或整数值（混合整数优化）。具体而言，开发和应用的确定性混合整数非线性优化技术的非线性过程控制应用于制氢系统。该项目还审查了研究和教育的整合，在国家和地方一级的研究相关的教育工具和学生的影响与学生计划的发展。将开发过程控制教育软件供全国推广。一个跨学科的本科生过程控制实验室将开发使用协作研究为基础的环境。在这里，招生将鼓励从现有的国家科学基金会赞助的本科研究通信工作室和学生团体通常不吸引到系统工程的职业生涯，如女工程师协会和黑人工程师的国家社会。最后，一个推广计划将开始与研究生提出工程示范地区高中。影响改进制氢系统运行的方法的开发和应用可能会产生广泛的社会影响，通过提高系统效率和加快新技术的采用，有助于向氢经济过渡。为了支持改进的制氢操作，将考虑为复杂的非线性动态系统开发新的化学过程控制方法。这些概念的发展可能会对整个化学工业产生持久的影响，除了改进制氢系统的运行。最后，改进的通用确定性混合整数非线性规划求解方法的发展可能会对科学和工程学科产生影响。