【作者】 闫小涛；

【导师】 刘金平； 潘亚宏；

【作者基本信息】 华南理工大学 ， 动力工程， 2009， 硕士

【摘要】 随着中国经济的发展,人民的生活水平不断提高,对生活品质要求也越来越高。尤其对家居环境要求会更高。而空调作为一种常用的家用电器,对改善居住环境发挥了至关重要的作用。随着空调的普及,空调在带给人们舒适的同时,也带来了电能的巨大耗费,从而引起因发电而引起的资源的浪费,环境的污染。为了减少这种损失,在对现有空调的性能,结构进行优化,改进后;使其在保持原有性能的同时,降低能耗,减少污染。而数码多联机不但能有效的提高空调设备对能源的利用效率,而且还可以提高环境带给人们的舒适性。由于数码多联机具有调节温度精确,无电磁干扰,能效更高,可以匹配长配管,集中控制等优点,对一般的中小建筑都可以选择使用。本文研究的多联机是采用美国古轮公司开发的数码压缩机,通过调节卸载负载的时间比,来实现不同能力的输出。本文在讨论该系统的同时,对其所采用的全新技术进行讨论,并通过相关软件对该系统在长配管时的性能进行模拟分析,主要分析在超长配管下系统的各项性能参数的变化。届时,将导出相关曲线图。本文主要对多联机在长配管连接下的性能进行了分析,并通过计算得出不同配管长度下对应的参数及能效的变化,从而得出多联机在100米管长内的性能的优越的结论;过长的管长对多联机系统来讲没有竞争优势,通过该系统分析,对今后的多联机安装工作具有现实的指导意义,同时也对目前市场上出现的一些虚假宣传进行了理论上的驳斥。随着多联机技术的进一步发展,多联机系统在长配管下的性能也许会得到进一步的提升,多联机的应用前景会更加广阔。更多还原

【Abstract】 People living standard increase with China economic development. People have a high requirment for live quality.especially for house environment; and air conditioner as a household appliance,it is very important for improving living enviromnent.but air conditioner bring people comforable living,it cause environment pollution,energy waste.in order to decrease this waste,we begin to research air conditioner performance to increase its efficiency.and digital multy-system can meet these requirment.not only this system can control accurately room temperature;but also can save more power. And no EMC,can match long pipe to meet middle project requirment.This article mainly research this digital multy-system which use Coplend digital compressor;which adjust system capacity output by the rate of loading time and unloading time.meantime,we will analyze the system performance for long pipe,and input some curve and data by using some softwares.This article mainly analyse the multy-systym performance when connecting a long pipe;and calculate the corronsponding relation between the long pipe and the system performance.then we hava a caclusion which when the connecting pipe reach 100m,the system performance will decrease a little,and the 100 m is reasonable.when the pipe execeed 100 m,the multy-system will have not any superior,so we suggest the best pipeline is 100 m for multy-system.throuth this rearch,we can guide the multy-system installation in future;and it will supply some theory basis for our rearch in future,so it is very meaningful for multy-system field.更多还原