多物理场下微生物污垢的生长与抑制机理及传热特性研究

以再生水源热泵为代表的非清洁水源热泵，是具有重要现实意义的节能减排技术。微生物污垢问题是严重影响再生水源热泵系统效率和安全并制约其发展的瓶颈问题。非清洁流体在设备中形成的微生物污垢是近年相关领域的国际热点。本项目以再生水源热泵微生物污垢在多物理场下的生长和抑制机理及传热特性为研究对象，通过科学的实验设置与多种先进的观察测量仪器，重点考察在不同温度场、流场、剪切力场等物理场下，各种因素与污垢生长过程和传热之间的交互作用。同时，建立微生物污垢三维全生命周期机理模型，通过模型模拟的方法进一步研究微生物污垢的生长机理与传热特性。进而根据实验和模拟结果，选取微纳刻痕、抑垢剂等多种物理和化学抑垢手段，考察评价这些新型抑垢方法的作用机理与效果。本项目将扩展对于微生物污垢生长机理和传热特性这一科学问题的认识，推动实验与模型研究方法的发展，增进对新型抑垢方法作用机理的理解。

Non-clean water source heat pumps, such as treated sewage source heat pump, are energy saving and emission reduction technologies with important practical usage. Biofouling seriously impairs treated sewage source heat pump system efficiency and security, which is a bottleneck of development. Biofouling formed by the non-clean water in heat exchangers is also an international hot topic in related scientific areas for recent years. This study focuses on biofouling growth and inhibition mechanisms as well as heat transfer characteristics in the treated sewage source heat pump under multi-physics conditions. With scientific experimental settings and various advanced observation and measurement instruments and technologies, the interactions among growth, heat transfer and influential factors will be detailed investigated, under multi-physics conditions including different temperature fields, flow fields and shear stress fields. A life cycle mechanism biofouling model will be carried out to further simulate and analysis the growth mechanisms and heat transfer characteristics. Base on experiments and simulations results, various physical and chemical inhibition technologies such as micro-nano indentation and chemical agents will be selected, aiming to investigate and evaluate the effects and mechanisms of these new inhibition methods. This study will expand the scientific knowledge of biofouling growth mechanisms and heat transfer characteristics, promoting the development of experimental and modeling strategies, as well as enhancing the understanding of new biofouling inhibition methods.