摘要
为了验证某大型冷热电分布式多能耦合能源站系统中的水蓄冷(热)系统是否完全满足设计要求,基于能源站设计典型日的24 h逐时波动冷热负荷需求,对水蓄能系统相关的核心技术指标(雷诺数、弗劳德数、水蓄能系统蓄冷及蓄热效率等)进行了评价计算,并采用CFD软件对布水器的均流效果以及蓄能水池内的温度场分布的变化进行了模拟验证。该多能耦合系统由燃气内燃发电机组、烟气热水余热型溴化锂冷温水机组、螺杆式地源热泵机组、冷(热)蓄能水池、10 kV离心式电制冷冷水机组、燃气真空热水锅炉等部分构成。评价计算及模拟分析的结果表明,蓄能系统的布水器各项选型参数及蓄能效率均完全可以满足设计要求。
In order to evaluate and verify whether the cold(heat)water storage system in a distributed multi-energy coupled energy station system fully meets the design requirements,according to the 24 hours hourly fluctuating cooling and heating load demand on typical design days,the evaluation calculation of the key technical indicators(Reynolds number,Froude number,energy storage tank efficiency,etc.)related to the water storage system are carried out.The professional CFD software is used to simulate and verification the current sharing effect of the water distributor and the change of temperature distribution in the water storage tank.The multi-energy coupled system consists of gas-fired internal combustion generator sets,waste heat recoverable lithium bromide chillers,screw ground source heat pump units,chilled water thermal and water heat storage tank,10 kV centrifugal electric refrigeration units and vacuum gas-fired hot water boilers.The results of evaluation calculation and simulation analysis show that the various parameters of the water distributor of the energy storage system and the energy storage efficiency can fully meet the design requirements.
作者
宋宏升
SONG Hongsheng(Beijing Gas Energy Development Co.,Ltd.,Chaoyang District,Beijing 100101,China)
出处
《分布式能源》
2020年第2期46-51,共6页
Distributed Energy
关键词
能源站
水蓄冷(热)
评价计算
模拟验证
蓄冷及蓄热效率
CFD模拟
energy station
chilled water thermal and water heat storage
evaluation calculation
simulation verification
cold and heat storage efficiency
CFD simulation
