文档介绍：探究变风量空调系统的优化设计方案
摘要: 变风量系统有很强的动态特性,加之空调系统固有的非线性,使问题的解决变得非常困难。可目前这方面的研究还比较滞后,设计人员在设计时缺少有效的分析计算手段。国内变风量系统的实践正在兴起,迫切需要可行、有效的辅助设计的分析方法。
Abstract: the dynamic characteristic of the variable air volume system has a strong, combined with the inherent nonlinear air conditioning system, makes it very difficult to solve the problem. But it's still lags behind, at present the research design personnel in the lack of effective means of analysis and calculation in design. Chinese practice of variable air volume system is on the rise, urgently need to be feasible and effective analysis method of aided design.
关键词: 变风量优化设计
Keywords: variable air volume optimization design
1、引言
1, the introduction
变风量空调系统于60年代在美国诞生,其基本原理是通过改变送入房间的风量来满足室内变化的负荷。在当今特别提倡节能和舒适性的条件下,变风量空调系统正在逐渐被人们接收并得到应用。
Variable air volume air conditioning system in the 60 s was born in the United States, its basic principle is through the change into the room air volume to meet the indoor load change. In today's special advocate energy saving fort conditions, variable air volume air conditioning system is gradually been received and applied.
变风量空调系统主要有以下几个优点:
Variable air volume air conditioning system mainly has the following advantages:
* 由于变风量空调系统是通过改变送入房间的风量来适应负荷的变化,而空调系统大部分时间的部分负荷下运行,所以风量的减少带来了风机能耗的降低。
* due to variable air volume air conditioning system is by changing the air into the room to adapt to the changing of the load and air-conditioning system running under the partial load of most of the time, so the air flow to reduce brought a fan to reduce energy consumption.
* 区别于常规的定风量或风机盘管系统,在每一个系统中的不同朝向房间,它的空调负荷的峰值出现在一天的不同时间,因此变风量空调器的容量不必按全部冷负荷峰值叠加来确定,而只要按某一时间各朝向冷负荷之各的最大值来确定。这样,变风量空调器的冷却能力及风量比定风量可风机盘管系统减少10-20% * 变风量空调系统属于全空气系统,与风机盘管系统相比有明显的好处是冷冻水管与冷凝水管不进入建筑吊顶空间,因而免除了盘管凝水和霉变问题。
* the difference between the conventional air volume or fan coil system, different toward the room in every system, its air conditioning load peak appears in the different times of the day, so the capacity of variable air v