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Evacuated vacuum tube

离岸价格

获取最新报价

15 USD / Piece

|

1000 Piece Minimum Order

国家:

China

型号:

58mm/1800mm

离岸价格:

15 USD / Piece 获取最新报价

位置:

Qingdao

最小订单价格:

15 per Piece

最小订单:

1000 Piece

包装细节:

Carton with foam inside

交货时间:

7 day after payment

供应能力:

10000 Piece per Day

付款方式:

T/T, L/C

產品組 :

Evacuated vacuum tube

现在联系
Qingdao Allrise Import & Export Co, Ltd

Qingdao Allrise Import & Export Co, Ltd

China

免费会员

联系人 Shirley

Room A-1509 International Trade Center No 230 Changjiangzhong Road, Qingdao, Shandong

现在联系

详情

   The tubes are made from low emissivity borosilicate glass (glass with a very low iron content that has superior durability and heatresistance ) with an all-glass seal and they employ AL/N on AL selective coating, which enables the use of the whole solar energyspectrum to generate heat; this produces greater thermal efficiency in bright sunshine but also produces high efficiency in overcast ordiffuse sunlight conditions. Further, the tubes are evacuated and have a barium getter (vacuum indicator) which changes color fromsilver to white if a tube’s vacuum has been compromised.
         An examination of the tubes shows that the outside is actually 2 layers of glass and a vacuum has been created between them.A good way to demonstrate this would be to fill an empty tube with very hot water and notice that it does not even get warm as youhold the tube in your hands. That is because of the“thermos effect” created by having a vacuum between the layers of glass.  
The tubes are made from low emissivity borosilicate glass (glass with a very low iron content that has superior durability and heatresistance ) with an all-glass seal and they employ AL/N on AL selective coating, which enables the use of the whole solar energyspectrum to generate heat; this produces greater thermal efficiency in bright sunshine but also produces high efficiency in overcast ordiffuse sunlight conditions. Further, the tubes are evacuated and have a barium getter (vacuum indicator) which changes color fromsilver to white if a tube’s vacuum has been compromised.
         An examination of the tubes shows that the outside is actually 2 layers of glass and a vacuum has been created between them.A good way to demonstrate this would be to fill an empty tube with very hot water and notice that it does not even get warm as youhold the tube in your hands. That is because of the“thermos effect” created by having a vacuum between the layers of glass. 
Evacuated-tube collectors can achieve extremely high temperatures (**0°F to **0°F), making them moreappropriate for cooling applications and commercial and industrial application. The collectors are usually made ofparallel rows of transparent glass tubes. Each tube contains a glass outer tube and metal absorber tube attached toa fin. The fin is covered with a coating that absorbs solar energy well, but which inhibits radiative heat loss. Air isremoved, or evacuated, from the space between the two glass tubes to form a vacuum, which eliminatesconductive and convective heat loss.

国家: China
型号: 58mm/1800mm
离岸价格: 15 / Piece 获取最新报价
位置: Qingdao
最小订单价格: 15 per Piece
最小订单: 1000 Piece
包装细节: Carton with foam inside
交货时间: 7 day after payment
供应能力: 10000 Piece per Day
付款方式: T/T, L/C
產品組 : Evacuated vacuum tube

相关产品 Qingdao Allrise Import & Export Co, Ltd

Evacuated vacuum tube Evacuated vacuum tube

US$ 15 / Piece

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