中央空调系统外文文献

1、t;span style=font-size:18px;color:#ff0000;http:/www.bisheziliao.com/p-132792.html 中文 8550 字   毕业设计外文资料翻译  学     院：        机械电子工程学院            专     业：        热能 与动力工程              姓 &。

2、 form ice cold storage, electricity consumption peak during the day when the ice will melt to provide air-conditioning services. As in most parts of Chinas electricity at night is much lower than during the day, using ice cold storage central air conditioning can significantly reduce the users operating costs. Ice storage central air-conditioning system configuration of equipment than conventional air-conditioning system to increase the number and require a higher degree of au。

3、d unify simulates I/O, the network corresponds as well as uses new programming standard like IEC 61131-3. However, engineers only must use digital I/O and few simulations I/O number as well as simple programming skill on potential 80% industrial application. PLC has been widely used in all industrial sectors. According to The United States market information World PLC and software market report, in 1995 the global software PLC and its economies of scale of about 5 billio。

4、d unify simulates I/O, the network corresponds as well as uses new programming standard like IEC 61131-3. However, engineers only must use digital I/O and few simulations I/O number as well as simple programming skill on potential 80% industrial application. PLC has been widely used in all industrial sectors. According to The United States market information World PLC and software market report, in 1995 the global software PLC and its economies of scale of about 5 billio。

5、ntal protection, energy saving, efficient use of resources and materials, especially focus on requirements for air temperature, humidity, ventilation and cleanliness. Therefore, the use of air conditioning system is more widely. Air-conditioning control system involves many aspects, but more complex tasks to be achieved. It needs support of cold and heat. There are high-power air conditioning unit fan, but its a great energy. Under the premise of meeting the requirements of users to。