理想蓄能模式下蓄能位置对联供系统性能影响  

Influence of Position of Ideal Thermal Energy Storage on the Performance of BCHP System

作　　者：张堙 王馨[1] 张寅平[1] 

机构地区：[1]清华大学建筑技术科学系,北京100084

出　　处：《工程热物理学报》2015年第3期587-590,共4页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划(No.2010CB227305);国家自然科学基金资助项目(No.51376098)

摘　　要：以天然气为燃料,燃气轮机驱动的建筑冷、热、电联产系统具有能源效率高,污染物排放少,供能安全、可靠等优点。将蓄能与联供系统相结合,选择合适的蓄能位置,对改善系统变工况性能意义重大。本文建立了带理想蓄能装置的冷电联产系统(燃气轮机、吸收机)简化数学模型,以一次能耗最小为目标,分析比较了不同蓄能位置对系统性能的影响。结果表明在联供系统中加入蓄能装置能有效起到减容增效的作用,理想蓄能装置放在吸收机后更有利于提高系统性能。Natural gas-driven building cooling heating and power(BCHP) system is of high energy efficiency,low emission,high energy supply safety and reliability.Integrating thermal energy storage(TES) equipment with BCHP system proves to be an effective way to improve its performance.The location of the TES device in BCHP has a great impact on the performance of the whole system.In this paper,a simplified model of BCHP with ideal TES is built,containing gas turbine(GT) and absorption chiller(AC).Aiming at minimal primary energy consumption,the performances of BCHP systems with different TES locations are compared and analyzed.The preliminary results indicate that it is better for improving efficiency and reducing installed capacities of energy supply devices to place the ideal TES equipment close to users.

关 键 词：理想模型 蓄能 联供系统 位置 一次能耗 

分 类 号：TK02[动力工程及工程热物理]