best efficiency heat pipe solar collector for solar power

Vacuum tube: three layer evacuated tube

 The vacuum tube of our solar water heater has the high absorption rate and low emission rate,

the absorption rate is 0.91-0.93 (AM1.5)

the emission rate is 0.05-0.075 (80±5)

vacuum tightness is P<5.0*0.0001Pa

idle sunning property parameters is Y=220-260./KW

the average heat loss coefficient is Ult=0.6-0.7W(.)

1) This collector tube adopts magnetron sputtering coating technology

2)  Coating: Cu/Ss-Aln/Aln high efficient selective absorptive coating and vacuum heat insulation could get higher heat and have high performance of absorptance and low reflection ratio and performing a strong heating ability.

3)tube life: more than 15 years.

How solar thermal collector works:
1) Solar absorption: Solar radiation is absorbed by the solar tubes and converted into heat.
2) Solar heat transfer: Heat pipes conduct the heat from within the solar tube up to the header pipe
3) Solar energy storage: Water is circulated through the header, via intermittent pump cycling.

Our company is a manufacturer of  solar collectors and solar water heaters in China .We have ISO certification and some other related certifications.We always give our customers best price and good quality! We sincerely hope you will be my next business friends.