Beijing Logon Sci. & Tech. Deve. Co., Ltd.
Main products:coating machine,ultrasonic cleaning machine,explosion spraying equipment
Products
Contact Us
  • Contact Person : Ms. Chen Sharon
  • Company Name : Beijing Logon Sci. & Tech. Deve. Co., Ltd.
  • Tel : 86-10-62477220
  • Fax : 86-10-62474518
  • Address : Beijing,Beijing,Room B-1409, Sigma Plaza, No. 49 Zhichun Road, Haidian District
  • Country/Region : China
  • Zip : 100086

solar collector tube

solar collector tube
Product Detailed
vacuum tube is inosculated by two glass tube at one end.inner tube with a selective coating, it can absorb the solar energy.

Vacuum tube is inosculated  by  two  glass tube at one end.inner tube with a selective coating, it can absorb the solar energy, prevent heat loss.Underpressure the air to form vacuum between the two tubes , prevent the conduction and convection heat loss.These tubes have high efficiency in the cloudy weather and low temperature conditions.This is because the tube material is glass, therefore the possibility of leakage be reduced to a minimum. Glass vacuum tube have a wide range of uses, including the DC or mixed with the heat pipe. Although the efficiency of the vacuum tube is lower than cryotron, but cheaper.

 technical parameter:

Model type

TG47

TG58

Length

1500mm

1800

Outer tube diameter

47mm

58mm

Inner tube diameter

37mm

47mm

Glass thickness

1.5mm

1.5mm

Thermal expansion

3.3x10-6

3.3x10-6

Material

3.3

3.3

Absorptive Coating

AL/N/AL

AL/N/AL

Absorption coefficient

>90%

>90%

Emission coefficient

<10%

<10%

Vacuum

P<5x10-2Pa

P<5x10-2Pa

Stagnation Temperature

>200oC

>200oC

Net weight

1.20kg

2.23kg

solar collector tube



Copyright Notice @ 2008-2012 ECVERY Limited and/or its subsidiaries and licensors. All rights reserved.