特黄特黄国产一级片_日韩亚洲自拍AV_A∨无码免费在线观看_黄色国产一级毛片_一区二区成人免费视频_japanese日本丰满少妇_婷婷中文久久精品香蕉_都市激情制服丝袜亚洲无码_欧美另类偷自拍情纯唯美_三级全黄裸体无遮挡国产

Welcome to Tai'an Xinyuan Solar Energy Ltd official website!

中文  |  Sitemap  |  Add Fav  |  Online

Tai'an Xinyuan Solar Energy Ltd

Hotline

400-155-0538

Your position:Home > News information > Company news

What is the power of the solar vacuum tube power solar vacuum tube

Publisher:admin  Addtime:2016-05-23  View counts:  

Vacuum tube absorption ratio is 97%. Remove the vacuum tube tube reflection, remove its heat loss. Also need coefficient is 0.8. That is to say a cloudy day is 0.23KW, sunny is 0.62KW. (this data is only for reference) in addition, if it is a solar water heater and need to take a coefficient of 0.6.

Previous:

Next:

Hot information