Direct Heat Generation From Solar Energy
SolarWall technology is a passive solar air heating technology that uses solar radiation directly to heat air. Its patented micro-perforated metal surface absorbs solar energy and converts it into heat. This heat is transferred to the fresh air passing behind the panel, and the warmed air is then directed into the building or process system.
Unlike conventional collector systems, SolarWall contains no liquid or moving parts; it works with sunlight and air alone. Thanks to its fully passive, silent and maintenance-free structure, it continues to generate energy at the same efficiency for many years.
Furthermore, unlike conventional heating systems, SolarWall technology performs direct air heating. As a result, this approach shortens the heat transfer chain and eliminates efficiency losses.
⚙ HVAC Integration
▣ Passive Heating
How Does SolarWall Technology Work?
1. Solar radiation reaches the surface
First, the patented micro-perforated metal surface absorbs solar energy and converts it into heat.
2. Fresh air passes behind the panel
Then, the fresh air passing behind the panel is heated and directed straight into the building or process system.
3. It integrates into the HVAC system
Finally, it can be connected to AHU, rooftop, heat pump, exhaust fan or process air lines as a supporting heat source.
The SolarWall Technology Family
The SolarWall technology family can be configured for different industrial needs with facade applications, duct-type systems, closed-loop solutions, PV/T hybrid systems and passive night-cooling technologies.
SolarWall 1-Stage
A single-stage facade solution that heats ventilation or process air in commercial and industrial buildings.
SolarWall 2-Stage
A high-performance system that reheats the air in a second stage to achieve a greater temperature rise.
SolarDuct 1-Stage
An economical single-stage duct-type solution that heats fresh air directly and feeds it into the duct.
SolarDuct 2-Stage
A two-stage duct-type heating system that produces a strong temperature difference at high air volumes.
2-Stage Closed Loop
A compact, highly efficient solution that provides closed-loop heating through indoor air recirculation.
PV/T Solar Air Heater
A hybrid cogeneration system that produces both electricity and hot air from the same surface.
NightSolar
A compressor-free solar cooling technology that provides passive cooling based on the night radiation principle.
SolarDuct Systems
SolarDuct technology is specially designed for rooftops and applications where a conventional facade system installation is not possible. Like the original SolarWall technology, it heats the outdoor air before it enters the ventilation or process units, thereby reducing the heating load.
SolarDuct 1-Stage
This is an efficient and economical single-stage solar heating solution that heats fresh air directly and feeds it into the duct. In addition, it provides fast installation and stable heat performance in medium-flow production and storage areas.
- Single-stage duct-type heat transfer system.
- Provides fast heating with 60–85% efficiency.
- Reduces energy consumption by 7–25%.
- Can be connected directly to AHU inlets.
SolarDuct 2-Stage
This is an advanced duct-type heating system that produces a strong temperature difference at high air volumes through two-stage heat transfer. Therefore, it is suitable for paint shops, process lines and facilities with high fresh air demand.
- Provides 2200–2500 kWh/m²/year of thermal output.
- Delivers 30–50% savings in high fresh air processes.
- Gives hybrid support to rooftop and heat pump systems.
- Used in high-flow industrial ventilation lines.
SolarWall 2-Stage Closed Loop
The SolarWall 2-Stage Closed Loop system is an advanced, compact heating solution that heats fresh air with the highest temperature difference thanks to its two-stage high-efficiency structure. Moreover, it delivers maximum performance in cold climates and in production areas requiring high heat.
Key Features
- Provides closed-loop heating with 100% indoor air recirculation.
- Produces 300–1000 W/m² of thermal power.
- Delivers strong heating performance at low outdoor temperatures.
- Can be integrated into tight spaces thanks to its modular structure.
Advantages
- Delivers 30–50% savings in heating costs.
- Provides stable and fast warming in cold climates.
- Offers a fast return with a 1–3 year ROI.
- Its maintenance requirement is extremely low.
PV/T Solar Air Heater and Electricity
The SolarWall PV/T cogeneration system produces both hot air and electricity. By combining highly efficient SolarWall air heating technology with photovoltaics, it creates an integrated energy solution.
Technical Features
- A hybrid system that produces electricity and heat from the same surface.
- Provides 10–18% higher electrical efficiency by cooling the back of the PV panel.
- Delivers 200–500 W/m² of thermal power output.
- Creates maximum energy density on rooftop areas.
Areas of Use
- Office buildings and commercial structures.
- Industrial rooftop applications.
- Facilities with high energy consumption.
- All buildings where hybrid energy use provides an advantage.
NightSolar 24/7 Solar Energy
Patented NightSolar systems make it possible to reduce the cooling load of buildings by cooling the air without using compressors or refrigeration systems. Based on the night radiation principle, the warm air contacts the cold surface of the NightSolar system and heat transfer takes place.
Key Features
- A patented, compressor-free passive cooling technology.
- Thanks to night radiation, it lowers the surface to about 10°C below ambient temperature.
- Naturally cools the air with its micro-perforated collector structure.
- Operates throughout the night without consuming energy.
Advantages and Areas
- Replaces air conditioning during the night hours.
- Significantly reduces the cooling load.
- Integrates into existing HVAC / AHU systems.
- Suitable for industrial facilities, warehouses, logistics centres, offices and commercial buildings.
SolarWall Technology Application Areas
Project-Based Assessment for SolarWall Technology
The choice of SolarWall technology should be determined according to the fresh air flow rate, the existing HVAC infrastructure, the application area, facade or rooftop suitability, the process temperature requirement and the energy-saving targets.
Airtes Industrial provides survey, analysis, engineering and installation support to determine the SolarWall technology best suited to your facility.
