Development of Multi-Scale and Multi-physics Mathematical Model for Energy-Efficient Underground Mine Ventilation Design

节能型地下矿井通风设计多尺度、多物理数学模型的开发

基本信息

批准号：
RGPIN-2015-03945
负责人：
Sasmito, Agus
金额：
$ 1.75万
依托单位：
McGill University
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2020
资助国家：
加拿大
起止时间：
2020-01-01 至 2021-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=708456
关键词：
Development Multi Scale physics Mathematical

项目摘要

Underground mining environments are dangerous due to the risk of cave-ins, explosions, lack of breathable air, heat, fog and the presence of hazardous gases and dust. Mine ventilation, heating and cooling consumes significant amount of energy. With increase of energy costs, and implementation of carbon tax, an energy-efficient ventilation system together with the use of renewable energy in mine has become highly desirable for sustainability in mining industry. Mathematical modeling in recent years has play important role to complement experimental data and assist engineer on designing ventilation, heating and cooling. However, due to the vast range of geometrical length and time scales for various transport phenomena found in a mine, these models are usually simplified to only consider zero or one dimensional networks and thus only loosely represent the behaviour of the field variables on a local level. The research program described in this proposal aims to produce novel and innovative approaches to develop a mathematical and numerical framework for mine ventilation and total air-conditioning that serves two main objectives: the first involves the study of the fundamental aspects of the multi-scale and multi-physics ventilation and the associated transport of turbulent heat, mass, momentum, species and particulate transfer including multiphase flow for both local (small part of mine) and global (the whole mine) levels. Three-dimensional ventilation model which is able to capture essential physics and transport phenomena at all scales will be derived, calibrated, verified and validated. In-house user-defined subroutine will be developed to enhance and modify the default capability of the software. The second objective concerns the development and integration of applied research for mine ventilation, including novel designs and addressing management issues (gas, dust, diesel particulate matters, fire, fog, radon and so forth). With more accurate model prediction as compared to existing mine-ventilation-planning software, the goal is to plan, design innovate and optimize the mining infrastructure to maximize safety, minimize energy consumptions including use of renewable energy to reduce carbon footprint and costs. The program will be carried out through HQP training of two PhD and two MEng students under close supervision of the applicant. One PhD and one MEng will work on the first objective, and one PhD and one MEng will work on the 2nd objective. The proposed research is important in mining industry as several mining in Canada are planning to go for ultra-deep, eg Thompson mine in Manitoba and Laronde mine in Quebec. They are facing problem of insufficient air, heat stroke and high energy consumption. Thus, the proposed program will assist them as the end users to re-design and improve their ventilation system including heating/cooling for optimum performance, energy saving and cost.

由于存在塌陷、爆炸、缺乏可呼吸空气、高温、雾以及有害气体和灰尘的风险，地下采矿环境非常危险。矿井通风、供暖和制冷消耗大量能源。随着能源成本的增加和碳税的实施，节能通风系统以及矿井中可再生能源的使用已成为采矿业可持续发展的迫切需要。近年来，数学建模在补充实验数据和协助工程师设计通风、供暖和制冷方面发挥了重要作用。然而，由于矿井中发现的各种传输现象的几何长度和时间尺度范围广泛，这些模型通常被简化为仅考虑零维或一维网络，因此只能松散地表示局部水平上场变量的行为。本提案中描述的研究计划旨在提出新颖和创新的方法来开发矿井通风和整体空调的数学和数值框架，该框架服务于两个主要目标：第一个涉及多尺度和整体空调的基本方面的研究。多物理通风以及相关的热量、质量、动量、物质和颗粒传递的湍流传输，包括局部（矿井的一小部分）和全局（整个矿井）水平的多相流。将导出、校准、验证和验证能够捕获所有尺度的基本物理和传输现象的三维通风模型。将开发内部用户定义的子程序来增强和修改软件的默认功能。第二个目标涉及矿井通风应用研究的开发和整合，包括新颖的设计和解决管理问题（气体、灰尘、柴油颗粒物、火灾、雾、氡气等）。与现有的矿井通风规划软件相比，模型预测更加准确，目标是规划、设计创新和优化采矿基础设施，以最大限度地提高安全性，最大限度地减少能源消耗，包括使用可再生能源来减少碳足迹和成本。该计划将在申请人的密切监督下通过对两名博士生和两名硕士生进行 HQP 培训来实施。一名博士和一名硕士将致力于第一个目标，一名博士和一名硕士将致力于第二个目标。拟议的研究对于采矿业非常重要，因为加拿大的一些采矿业正计划进行超深矿开采，例如曼尼托巴省的汤普森矿和魁北克省的拉龙德矿。他们面临着空气不足、中暑、能耗高的问题。因此，拟议的计划将帮助他们作为最终用户重新设计和改进他们的通风系统，包括加热/冷却，以实现最佳性能、节能和成本。