带有抽水压缩气体储能装置的制冷系统.pdf

2015年第43卷第6期
流体机械
文章编号:1005-0329(2015)06-0069-0
带有抽水压缩气体储能装置的制冷系统
李瑞雄,王飞2,时文刚2,王焕然,王峰
(1.西安交通大学,陕西西安710049;2.中国大唐集团新能源股份有限公司,北京10003)
摘要:为开拓间歇式能源应用新途径,本文提出了一种复合制冷系统,该系统带有抽水压缩气体储能装置。在储能
阶段,该储能制冷系统通过水泵将电能转换为水气共容舱内带压气体的内能;释能阶段,在水气共容舱内高压气体的作
用下,使其内部的水流经水轮机直接驱动制冷循环制冷,而制冷循环中冷凝器所释放的能量被水气共容舱内的高压气体
全部吸收,最终完成了利用间歌式能源制冷之目的。文中建立了描述储能与制冷过程的热力学模型,并重点研究了储能
和制冷过程中关键节点的热力学参数变化规律,与文献给出的储能制冷系统相比,该系统具有较高的制冷系数。为拓展
间歇式能源实际应用途径提供了一种新思路。
关键词:压缩空气储能;抽水蓄能;制冷系统;热力学分析
中图分类号:TH12
文献标志码:Adoi:10.3969/j,is,1005-0329.2015.06.016
Refrigeration System with Pumping Compressed Gas Energy Storage Device
LI Rui-xiong, WANG Fei", SHI Wen-gang, WANG Huan-ran, WANG Feng
(1. Xi'an Jiaotong University, Xi'an 710049, China 2. China Datang New Energy Ltd, Beijing 100053, China
Abstract: To explore the new way of intemittent energy applications, a composite refrigeration system was proposed, which
quips with pumping compressed air energy storage device. During the stage of energy storage, the refrigeration system converted e-
lectric energy into internal energy of gas-pressurized through the water pump in the cabin; At the energy release stage, the internal
waer flow through urbine that will re ely e cycle of ef eration under the cabin s gas-pressurized, and the heat of th
condenser in refrigeration cycle is absorbed by high pressure gas inside the cabin, eventually completed the purposes of using in
termittent energy refrigeration. This paper established the thermodynamic model to describe the energy storage and refrigeration
process, and focuses on the change of the key node thermodynamic parameters during storage and cooling process. Contrasting with
the literature nergy storage re eation s em, this ssem has iger refrigeration coeficient. And it provides a new way for the
development of intermittent energy application
Key words: compressed air energy storage; pumped-hydro energy storage; refrigeration system; thermodynamic analysis
符号
水密度,kg/
水流量,kg/
δ一水气比,V、ノ(VーV)
H一一水泵的扬程,m
Eー一总耗电量
T一冷库温度,K
E。一压缩机耗电量
Q。-一制冷量,J
7一一环境温度,K
m,一一水泵效率
Tー一水气混令温度,K
m。一一压缩机效率
P。-一环境压力,MP
m一一系统运行效率
P
预置压力,MPa
B一冷凝器换热效率
一气体终压,MPa
水轮机做功效率
收稿日期:2014-12-18修稿日期:2015-03-16
基金项目:国家高技术研究发展计划(863计划)项?(2012AO52505);国家自然科学基金资助项日(5117145)