摘要
冰蓄冷系统的初投资、运行费用及投资回收期与蓄冷率的选值密切相关。以某超高层办公建筑为例,对三种蓄冷率(20%、25%、30%)情况下的冰蓄冷冷源系统进行设计,分析了100%负荷率运行条件下,不同时刻蓄冰量、融冰量及冷机制冷量的分布情况,并与常规电制冷系统以及全负荷冰蓄冷系统进行经济性分析后设计本工程冷源系统。结果表明20%蓄冷率条件下负荷峰值时段主机满负荷运行时经济性最优,并设置五种工作模式适应负荷变化。
The initial investment,operating cost and payback period of the ice storage system are closely related with the selected value of the ice storage rate.Taking a super-high-rise office building project as an example,the air conditioning cooling systems with three kinds of ice storage rates(20%,25%,30%)are considered,the hourly distributions of ice storage quantity,ice melting quantity and the air conditioning cooling units capacity are analyzed on the 100%load working condition.Compared with conventional electric air conditioning cooling system and full load ice storage air conditioning cooling system,the comprehensive economic analysis is completed to design the air conditioning cooling system of the project.The results indicate that under the condition of 20%ice storage rate,the economy is optimal when cooling units are running at full load during peak load period,and five working modes are set to adapt to the load change.
作者
陈世玉
CHEN Shi-yu(East China Urban Architectural Design&Research Institute,Shanghai 200010,China)
出处
《应用能源技术》
2020年第3期10-14,共5页
Applied Energy Technology
关键词
蓄冷率
投资回收期
冷源系统
工作模式
ice storage rate
investment payback period
air conditioning cooling system
working modes
