U pipe solar colletcor is a type of high efficiency direct flow evacuated tube solar collector with 10pcs , 15pcs , 20pcs of solar vacuum tube 58/1800 or 47/1500, used for hot water heating or space heating
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RNE-UCA-20
SOLARAVEN
84199010
High Efficiency evacuated tube U pipe solar collector
U pipe solar colletcor is a type of high efficiency direct flow evacuated tube solar collector with 10pcs , 15pcs , 20pcs of solar vacuum tube 58/1800 or 47/1500, used for domestic/ commercial hot water heating and space heating
Unlike standard "heat pipe" collectors that use a phase-change fluid, U-pipe collectors utilize a direct-flow system where the heat transfer fluid (typically water or a glycol-antifreeze mixture) flows through a continuous U-shaped
copper pipe within each vacuum tube.
The u pipe solar collector tube consists of three primary parts that work together to capture and transfer solar energy:
Evacuated Solar Glass Tube: Composed of two borosilicate glass layers and with a vacuum between them to minimize heat loss.
Absorption Layer: The inner glass tube is coated with a selective material that absorbs solar radiation and converts it into heat.
U-Pipe & Fin: A copper U-pipe is encased in an aluminum fin inside the tube. This fin conducts heat from the glass directly to the fluid inside the copper pipe.
Parameters of U pipe solar collectors
Model | tubes Diameter (mm) | tubes Length (mm) | Absorb area (mm) | Quantity heat-pipe (pcs) | Quantity 20GP/40GP/40HQ (pcs) |
RNE-UCA-10 | 58 | 1800 | 1.73 | 10 | 125/250/310 |
RNE-UCA-15 | 2.16 | 15 | 109/222/271 | ||
RNE-UCA-18 | 2.57 | 18 | 82/164/200 | ||
RNE-UCA-20 | 2.85 | 20 | 81/162/198 | ||
RNE-UCA-24 | 3.41 | 24 | 71/142/173 | ||
RNE-UCA-30 | 4.25 | 30 | 57/104/127 |
Key Advantages of a U pipe solar collector
High Efficiency: They offer superior thermal efficiency ,because the fluid is heated directly within the glass tube.
Freeze Resistance: There is no water inside the vacuum tube itself; the fluid remains in the copper pipes, allowing operation in temperatures as low as -35°C to -50°C.
Versatile Installation: They can be mounted at any angle (0° to 90°), including horizontally or flat on a wall, making them ideal for balcony or facade integration.
Pressurized Operation: Designed to withstand high working pressures (typically 0.6 MPa to 0.8 MPa), making them suitable for direct connection to household water systems.
Applications
Domestic Hot Water: Showers, kitchens, and washing.
Space Heating: Underfloor heating and radiators.
Commercial/Industrial: Large-scale systems for hotels, hospitals, and preheating industrial processes.
Specialized Heating: Swimming pool heating and solar air conditioning
Q1: How does the vacuum-sealed design improve efficiency?
The vacuum between the inner and outer glass tubes minimizes convective and conductive heat loss, allowing the collector to retain up to 95% of absorbed solar energy.
Q2: Can the collector operate in snowy or cloudy conditions?
Yes. The selective coating and vacuum insulation enable the collector to absorb diffused sunlight, ensuring reliable performance even in low-light environments.
Q3: What is the lifespan of the tubes?
With proper maintenance, the borosilicate glass tubes and stainless steel components can last 20 years or more.
Q4: Is professional installation required?
While installation is straightforward, professional setup is recommended to ensure optimal positioning and system integration. Most installers offer warranties for labor and parts.
High Efficiency evacuated tube U pipe solar collector
U pipe solar colletcor is a type of high efficiency direct flow evacuated tube solar collector with 10pcs , 15pcs , 20pcs of solar vacuum tube 58/1800 or 47/1500, used for domestic/ commercial hot water heating and space heating
Unlike standard "heat pipe" collectors that use a phase-change fluid, U-pipe collectors utilize a direct-flow system where the heat transfer fluid (typically water or a glycol-antifreeze mixture) flows through a continuous U-shaped
copper pipe within each vacuum tube.
The u pipe solar collector tube consists of three primary parts that work together to capture and transfer solar energy:
Evacuated Solar Glass Tube: Composed of two borosilicate glass layers and with a vacuum between them to minimize heat loss.
Absorption Layer: The inner glass tube is coated with a selective material that absorbs solar radiation and converts it into heat.
U-Pipe & Fin: A copper U-pipe is encased in an aluminum fin inside the tube. This fin conducts heat from the glass directly to the fluid inside the copper pipe.
Parameters of U pipe solar collectors
Model | tubes Diameter (mm) | tubes Length (mm) | Absorb area (mm) | Quantity heat-pipe (pcs) | Quantity 20GP/40GP/40HQ (pcs) |
RNE-UCA-10 | 58 | 1800 | 1.73 | 10 | 125/250/310 |
RNE-UCA-15 | 2.16 | 15 | 109/222/271 | ||
RNE-UCA-18 | 2.57 | 18 | 82/164/200 | ||
RNE-UCA-20 | 2.85 | 20 | 81/162/198 | ||
RNE-UCA-24 | 3.41 | 24 | 71/142/173 | ||
RNE-UCA-30 | 4.25 | 30 | 57/104/127 |
Key Advantages of a U pipe solar collector
High Efficiency: They offer superior thermal efficiency ,because the fluid is heated directly within the glass tube.
Freeze Resistance: There is no water inside the vacuum tube itself; the fluid remains in the copper pipes, allowing operation in temperatures as low as -35°C to -50°C.
Versatile Installation: They can be mounted at any angle (0° to 90°), including horizontally or flat on a wall, making them ideal for balcony or facade integration.
Pressurized Operation: Designed to withstand high working pressures (typically 0.6 MPa to 0.8 MPa), making them suitable for direct connection to household water systems.
Applications
Domestic Hot Water: Showers, kitchens, and washing.
Space Heating: Underfloor heating and radiators.
Commercial/Industrial: Large-scale systems for hotels, hospitals, and preheating industrial processes.
Specialized Heating: Swimming pool heating and solar air conditioning
Q1: How does the vacuum-sealed design improve efficiency?
The vacuum between the inner and outer glass tubes minimizes convective and conductive heat loss, allowing the collector to retain up to 95% of absorbed solar energy.
Q2: Can the collector operate in snowy or cloudy conditions?
Yes. The selective coating and vacuum insulation enable the collector to absorb diffused sunlight, ensuring reliable performance even in low-light environments.
Q3: What is the lifespan of the tubes?
With proper maintenance, the borosilicate glass tubes and stainless steel components can last 20 years or more.
Q4: Is professional installation required?
While installation is straightforward, professional setup is recommended to ensure optimal positioning and system integration. Most installers offer warranties for labor and parts.
