⚡ Scheffler Fixed‑Focus Technology
The Direct Cooking uses a patented lateral‑moving parabolic geometry to reflect sunlight onto a stationary receiver located inside the kitchen. Unlike conventional cookers, the cooking position is fixed, safe, and indoor. The dish automatically tracks the sun while the focal point remains static — enabling continuous, high‑temperature cooking without operator exposure to concentrated rays.
Core Capabilities
Cooking Performance
- Rice: 15–20 kg in 20–25 min
- Dal: 20–25 L in 40–45 min
- Vegetables: 25–30 kg in 20–25 min
- Frying & Chapati supported
System Components
- 16 m² Scheffler reflector
- Precision tracking mechanism
- Fixed receiver unit (indoor cooking)
- Seasonal tilt adjustment
Safety Features
- Fixed focal point eliminates glare exposure
- Wind stow mechanism (140 km/h)
- Controlled heat delivery indoors
- No open flame – zero fire risk
- Automatic solar tracking with manual override
Key Benefits
- Reduction LPG and firewood dependency
- 10–12 tons CO₂ saved / year
- 2–4 year payback period
- 20–25 year system service life
- Eligible for carbon credits
📐 Technical Specifications
| Parameter | Specification |
|---|---|
| Reflector Area | 8-16 Square Meters |
| System Type | Scheffler Fixed Focus Parabolic Dish |
| Reflector Material | High Reflectivity Glass Mirrors / Anodized Aluminum |
| Reflectivity | ≥ 90% |
| Structure Material | Mild Steel (Hot Dip Galvanized / Anti-corrosion Coated) |
| Tracking System | Manual / Semi-Automatic (Single Axis with Seasonal Adjustment) |
| Focal Length | ~2.5 to 3.0 meters |
| Concentration Ratio | 100:1 to 150:1 |
| Operating Temperature | 350°C to 450°C |
| Mounting Type | Ground Mounted with RCC Foundation |
| Wind Resistance | Up to 140 km/h (with stow mechanism) |
| System Life | 20–25 years |
☀️ Solar Thermal Performance
| Parameter | Value |
|---|---|
| Peak Thermal Output | 5.5 kWh |
| System Efficiency | 55% – 70% |
| Effective Cooking Duration | 5–7 hours/day (clear sky conditions) |
| Fuel Savings | Equivalent to ~3–4 kg LPG/day |
| Annual CO₂ Reduction | 10–12 tons |
Deployed Across High‑Demand Kitchens
Ashrams
Mid-day Meals
PG's
Hotels / Dhaba's
Residential Schools
Small-scale Catering &
Self-Help Groups
(Roti-chapati making, frying, etc.)
🛠️ Installation & Maintenance
| Requirement | Details |
|---|---|
| Installation Requirements | RCC foundation, 3–5 days installation, unobstructed south-facing location |
| Maintenance Practices | Routine mirror cleaning, lubrication of tracking joints, periodic alignment inspection |
| Accessories Included | Fixed receiver unit, cooking stand, safety lock, seasonal tilt mechanism |
System in Action
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