Solar Collector Water Heaters offer a comprehensive solution for harnessing solar energy to provide hot water. These systems consist of several essential components:
Solar Collector: The primary component responsible for capturing solar energy and converting it into heat. Solar collectors come in various types, such as flat plate or evacuated tube collectors, and are designed to maximize solar absorption efficiency.
Storage Boiler: Also known as a storage tank or cylinder, this component stores the heated water generated by the solar collector. It ensures a continuous supply of hot water for household or commercial use.
Group Pumps: These pumps are responsible for circulating the water between the solar collector and the storage boiler. They ensure efficient heat transfer and distribution throughout the system.
Controller: The controller regulates the operation of the entire solar water heating system. It monitors factors such as temperature, solar radiation, and water flow, optimizing performance and energy efficiency.
Expansion Vessel: An expansion vessel is included to accommodate the expansion of water as it heats up, preventing pressure buildup within the system. This ensures the longevity and safety of the solar water heater.
Collector Dimensions & Weights
| Collector Size | 15tubes | 20tubes | 25tubes | 30tubes |
| Overall Length 1 | 1970mm | |||
| Overall Height 2 | 135mm | |||
| Pressure Drop | less than 5mbar(80L/h),12mbar(150L/h) | |||
| Overall Width 3 | 1145mm | 1560mm | 1895mm | 2332mm |
| Absorber Area 4 | 1.24m2 | 1.65m2 | 2.06m2 | 2.48m2 |
| Aperture Area 5 | 1.425m2 | 1.90m2 | 2.38m2 | 2.85m2 |
| Gross Area | 2.26m2 | 3.07m2 | 3.73m2 | 4.95m2 |
| Gross Dry Weight | 58kg | 77kg | 96kg | 116kg |
| Fluid Capacity | 290ml | 520ml | 550ml | 710ml |
Specifications of solar collector:
- Vacuum tube material: Borosilicate glass 3.3
- Manifold pipe material: Red copper
- Heat pipe material: Red copper
- Manifold casing material: Aluminum alloy
- Insulation: High-density rockwool
- Frame material: Aluminium alloy
- Heat transfer fin material: Aluminum sheet
- Working Pressure: 6 bars
Features of solar collectora:
- Certified by Solar Keymark
- High efficiency
- Minimal heat loss due to vacuum tube design
- Suitable for cold climates, operates efficiently even at -50°C
- Material resistant to corrosion in all climates
- Comprehensive lifespan of over 15 years
- Maintenance-free
|
Model |
Solar acuum tube with heat pipe | Container Loading Qty | Daily Output ( 50-90 oC ) |
||||||
| Dia. | Length | Coating | Qty | Condenser | 20GP | 40GP | 40HQ | ||
| HSC-10 | Φ58 | 1800 | ALN/AIN-SS/Cu | 10 | Φ14 | 165 | 330 | 380 | 100L |
| HSC-12 | Φ58 | 1800 | ALN/AIN-SS/Cu | 12 | Φ14 | 145 | 300 | 340 | 120L |
| HSC-15 | Φ58 | 1800 | ALN/AIN-SS/Cu | 15 | Φ14 | 130 | 265 | 310 | 150L |
| HSC-18 | Φ58 | 1800 | ALN/AIN-SS/Cu | 18 | Φ14 | 105 | 215 | 250 | 180L |
| HSC-20 | Φ58 | 1800 | ALN/AIN-SS/Cu | 20 | Φ14 | 100 | 205 | 235 | 200L |
| HSC-24 | Φ58 | 1800 | ALN/AIN-SS/Cu | 24 | Φ14 | 92 | 190 | 220 | 240L |
| HSC-25 | Φ58 | 1800 | ALN/AIN-SS/Cu | 25 | Φ14 | 88 | 180 | 210 | 250L |
| HSC-30 | Φ58 | 1800 | ALN/AIN-SS/Cu | 30 | Φ14 | 85 | 175 | 205 | 300L |
Specifications of Storage Boiler:
- Inner tank: Stainless steel 304 2B, 1.2mm to 2.0mm thickness
- Out tank: White painted galvanized steel 0.5mm thickness
- Foam insulation: High density polyurethane foam
- Coil heat exchanger: Copper material Dia. 12mm
- Inlet & Outlet connections: G 3/4 female screw
- Including accessaries: Electric heater, PT valve, Check valve, sensor sleeve and Magnesium rod
Pump Station of Solar Collector Water Heaters
The pump station is a critical component in solar water heater systems, facilitating efficient operation and maximizing the utilization of solar energy. This station typically includes a pump, controller, temperature sensors, and other necessary devices for the system’s proper functioning. Its main function is to pump the thermal fluid (usually a mixture of water and glycol) through the solar collector and into the storage tank, where the heat captured from the sun is accumulated. In addition to ensuring a constant and controlled flow of fluid, the pump station may incorporate features for protection against overheating, as well as control and monitoring systems to ensure the efficiency and safety of the system at all times. In summary, the pump station plays a fundamental role in the reliable and effective operation of solar water heaters, helping to harness the renewable energy of the sun for hot water supply.
Some often used pump station in market
Expansion vessel of solar collector water heater
The expansion vessel is an essential component of a solar water heating system, particularly in closed-loop systems. Its primary function is to accommodate the expansion and contraction of the heat transfer fluid (often a mixture of water and antifreeze) as it heats up and cools down during operation.
As the heat transfer fluid absorbs heat from the solar collectors, it expands, increasing the pressure within the system. Without an expansion vessel, this pressure increase could lead to damage or failure of components such as pipes, valves, and the collector itself.
The expansion vessel consists of a sealed container divided into two chambers by a flexible membrane. One chamber contains the heat transfer fluid, while the other is filled with a compressible gas, typically nitrogen. As the fluid expands, it compresses the gas, allowing the system pressure to rise without causing damage. Conversely, when the fluid cools and contracts, the compressed gas expands, exerting pressure to maintain system stability.
