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Products and Services
We provide the
most advanced evacuated-tube solar collectors certified by SRCC:
Our OEM supplier is Sunrain, which is the world's largest exporter of solar collectors, and was
recently awarded the highest international quality award -
"International Quality Star” issued by the Business Initiative
Directions in Geneva, Switzerland, joining the rank of GE, Coca-Cola
and other world renowned companies in winning this award.
Sunrain solar collectors are among the most efficient in the WORLD as certified by SRCC. They are the most cost-effective collectors on the market – they offer the best performance at the best price. You must see the SRCC ratings and price comparison before buying anything else: www.solartubs.com/Solar-Evacuated-Tube.html
Detailed Product
Specifications of the 20-evacuated
tube heat pipe collector TZ58/1800-20R, SRCC certified:
Heat Loss: (a1): 1.529W/m2 K (.269 (Btu/h)/ft2/F)
Heat Loss: (a2): 0.0166W/m2 K2 (.003 (Btu/h)/ft2/F)
Stagnation Temp: 200.3 C (392F)
Volume of Water In Header: 0.188 Gallons (.71L)
Pressure Drop Per collector: 1.5 PSI
Recommended Flow: 1-1.5GPM
Aperture Area: 1.720 m x 0.0544 m x (# of tubes )= 1.871 (for 20
tube)
Absorber Area: 1.720 m x 0.0470 x (#of tubes) = 1.6168 (for 20 tube)
Distance Between Tubes 7.8cm or 3"
Insulation In Header: polyurethane and mineral wool
Header Material: Aluminum
Fluid Operating Pressure:: 87 psi
Maximum Service Temperature: 95C (203F)
Length (nominal): 1800mm (70")
Outer tube diameter : 58mm (2.2")
Inner tube diameter: 47mm (2.1")
Glass thickness: 1.6mm (0.1")
Thermal expansion: 3.3x10-6 oC
Material: Borosilicate Glass 3.3
Absorptive Coating: Cu/AL/SS/N2
Transmission Through Glass: >92% (AM1.5)
Absorptivity Coefficient: > 94%
Emittance: < 7%
Vacuum: P<5x10-4 Pa
BTU Output Per Day (standard) 29,000 BTU
Manifold connection: 1" male threaded
Unit Dimensions: 5.7ft W x 6.7ft H
Average Efficiency: 71%
Warranty 10 Years
Estimated Lifespan 25-30 Years
Weight (tubes with frame): 174 lbs
Sloped or flat roof (or ground) mounting hardware is include.
30-tube heat pipe collector TZ58/1800-30R, SRCC certified.
Similar specifications as above, but 10 more tubes, 44,000 BTU/day.
Sloped or flat roof (or ground) mounting hardware is include.
We highly recommend PV
controlled solar
heating systems and avoid using controllers, sensors, and
thermostats etc because the latter components are the most
troublesome parts in the otherwise highly reliable solar heating
systems (controller electronics can be easily damaged by spikes in
power supply or lightening; sensors and thermostats also frequently
malfunction). A PV controlling a PV pump is extremely reliable. It
will work perfectly even when there is a power outage during bad
weather, or when circuit breaker is tripped, residents
turn off power etc. Any power outage can potentially cause damage to
controller-sensors
controlled systems.
For comparison of evacuated tubes vs. flat plates in design etc, see
www.SolarPlusGreen.com/tube-vs-plate.htm
Our systems are very modular and can be easily expanded by
connecting more solar collectors and adding one or more water tanks,
with lower cost per unit of hot water as system size increases.
Contact us for your particular needs, whether it is
commercial or residential, plumbers getting into this rapidly
expanding new field, or do-it-yourself projects. You will be happy
about your investment return and the great satisfaction in going
solar.
SolarPlusGreen LLC, 1104 Hendersonville Rd,
Asheville, NC 28803;
see location map.
Ph: 828-301-2021, Fax: 828-277-1240;
office@SolarPlusGreen.com
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