间歇波动性低温热源混合工质冷电联供系统集成和调控机理研究

项目名称： 间歇波动性低温热源混合工质冷电联供系统集成和调控机理研究

项目编号： No.51476121

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 能源与动力工程

项目作者： 王江峰

作者单位： 西安交通大学

项目金额： 83万元

中文摘要： 利用非共沸混合工质在两相区的温度滑移特性，能够实现间歇波动性低温热源的多能量输出转换，对于节能降耗和抑制雾霾天气具有重要意义。建立混合工质多能量输出系统集成方法并且确保系统协调优化运行，是实现能量高效转换的根本。项目通过对间歇波动性低品位能量传输、储存、转换过程最佳热力匹配特性研究，以能量耗散最小为原则，建立间歇波动性低温热源混合工质冷电联供系统集成方法，满足用户对冷电的双重需求，实现能量品质提升；探究低温热源流量、温度以及冷、电负荷变化时，混合工质冷电联供系统关键热力参数的动态响应规律，阐明混合工质冷电联供系统中能量传输、储存、转换过程的时空演变规律；探索混合工质组分对热功/热冷转换过程的调控机理，阐明混合工质冷电联供系统协调控制机理，揭示多准则评价指标下系统的最优化协调运行特性，实现系统高效灵活运行。项目有助于丰富和完善多能量输出能源系统集成理论，具有重要的理论和学术意义及应用前景。

中文关键词： 低温热源；系统集成；冷电联供；协调控制

英文摘要： Utilizing the behavior of temperature glide of non-azeotropic mixture during the two-phase region could achieve multiple energy conversion for the interval and fluctuant low temperature heat source. It is significant to obtain energy saving and low consumption and control the occurrence of haze weather.it is fundamental for effective energy conversion to establish the integration method of multiple energy conversion system using mixture working fluid and ensure the optimum coordinated operation of system. This program will examine optimal thermodynamic match of the pocess of energy trasportion, energy storage and conversion, and establish the integration method of combined cooling and power system driven by low temperature heat source using mixture working fluid based on the principle of minimum energy dissipation to meet the dual requirement of cooling and power, achieving the promotion of energy grade. Furthermore, it will explore the dynamic response of the key parameters of the combined system when the mass flow rate and temperature of heat source, the load of cooling and electricity of the combined system are subjected to a change. It will demonstrate the space-time evolvement behavior of energy transportion and conversion in the combined system. In addition, it will explore the adjusting mechanisim of ammonia mass fraction during the process of energy conversion. It also will reveal the coordinated control mechanism of combined cooling and power system using mixture working fluid to obtain the optimum coordinated operation behavior with multiple evaluation criterions, achieving the effective operation of system. The program could help enrich and improve the theory of energy system integration with multiple energy output, which has an important academic significance application prospect.

英文关键词： low temperature heat source;system integration;combined cooling and power;coordination control