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Multi-physics, multi-scale modelling of liquefied natural gas (LNG) in marine shipping and heavy-duty trucking: transport, storage, spill, and atmospheric dispersion

海运和重型卡车运输中液化天然气 (LNG) 的多物理场、多尺度建模：运输、存储、泄漏和大气扩散

基本信息

批准号：
519885-2017
负责人：
Brinkerhoff, Joshua
金额：
$ 7.67万
依托单位：
University of British Columbia
依托单位国家：
加拿大
项目类别：
Collaborative Research and Development Grants
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=697508
关键词：
Multi physics multi scale modelling

项目摘要

The greenhouse gases produced by Canada's trucking and marine shipping industries can be reduced by using alternative fuels such as liquefied natural gas (LNG). LNG is a cryogenic fuel, so it must be carefully stored, transported, and dispensed to minimize the release of methane vapour to the environment. If LNG systems fail and fuel is spilled, environmental and safety consequences may result. Ship structural components may fail due to thermal stresses caused by the spilled LNG's extremely low temperature. Moreover, the resulting methane vapour has high climate impact and is flammable. To help develop LNG as a safe and clean alternative fuel for marine shipping and heavy-duty trucking, a deeper understanding of how LNG behaves in real industrial systems is required. The proposed research project will develop a suite of computer-based modelling tools in collaboration with Westport Fuel Systems, Fortis BC, BC Ferries, and the Port of Vancouver. The tools will be used to evaluate the behaviour of LNG during storage and transport in trucks and ships, to ensure the integrity and safety of ship structural components following LNG spills, and to predict the atmospheric dispersal of methane gas following venting or spill of LNG. Ultimately, the research will assist in safely transitioning Canada's trucking and marine shipping industries to lower-carbon fuels for significant carbon reductions and cost savings.

加拿大卡车运输和海运行业产生的温室气体可以通过使用液化天然气（LNG）等替代燃料来减少。液化天然气是一种低温燃料，因此必须小心储存、运输和分配，以尽量减少甲烷蒸气向环境中的释放。如果液化天然气系统发生故障，燃料泄漏，可能会导致环境和安全后果。由于泄漏的液化天然气温度极低，船舶结构部件可能会因热应力而失效。此外，由此产生的甲烷蒸气对气候的影响很大，而且是易燃的。为了帮助开发LNG作为海运和重型卡车运输的安全、清洁的替代燃料，需要更深入地了解LNG在实际工业系统中的行为。拟议的研究项目将与Westport Fuel Systems、Fortis BC、BC Ferries和温哥华港合作开发一套基于计算机的建模工具。这些工具将用于评估液化天然气在卡车和船舶中储存和运输过程中的行为，以确保液化天然气泄漏后船舶结构部件的完整性和安全性，并预测液化天然气排放或泄漏后甲烷气体在大气中的扩散。最终，这项研究将有助于加拿大的卡车运输和海运行业安全过渡到低碳燃料，以显著减少碳排放和节省成本。