🔧 System Overview
The Box Type Solar Dryer is a compact and efficient system designed for drying agricultural produce, food products, and herbs using solar energy. It operates on the greenhouse effect, where solar radiation is trapped inside an insulated chamber to produce clean, uniform, and hygienic drying conditions.
Ideal for farmers, FPOs, SHGs, small industries, and rural entrepreneurs, this system ensures improved product quality, reduced drying time, and higher market value.
📐 Technical Specifications
| Parameter | Specification |
|---|---|
| Dryer Type | Passive Solar Box Dryer (Natural Convection) |
| Drying Capacity | 25 kg – 80 kg per batch (fresh input) |
| Drying Chamber | Insulated box type enclosure |
| Outer Body | GI sheet / Powder-coated MS / Aluminum |
| Inner Surface | Food-grade SS / Aluminum |
| Glazing Material | Toughened glass / UV-stabilized polycarbonate |
| Insulation | Glass wool / PUF insulation |
| Tray Material | Food-grade SS / Nylon mesh |
| Number of Trays | 4 – 12 trays (based on capacity) |
| Air Circulation | Natural convection (ventilation slots) |
| Optional Air Flow | DC fan (solar-powered, optional) |
| Temperature Range | 50°C – 80°C |
| Drying Time | 1–3 days (depending on product) |
| Moisture Reduction | Up to 80%–90% removal |
| Mounting | Floor-mounted / portable |
Drying Performance
- Maintains uniform drying temperature
- Protects products from: Dust, Insects, Rain contamination
- Typical Drying Applications:
- Fruits: Mango, Banana, Pineapple, Papaya
- Vegetables: Onion, Tomato, Chili, Garlic
- Spices: Turmeric, Pepper
- Herbs: Medicinal plants, leaves
- Other: Grains, seeds
System Components
- Solar drying chamber (box type)
- Transparent glazing cover
- Multi-layer drying trays
- Air inlet & outlet vents
- Optional DC fan (for improved airflow)
Safety & Hygiene Features
- Food-grade materials for safe drying
- Enclosed system prevents contamination
- UV-protected glazing
- Non-toxic and corrosion-resistant structure
Environmental & Economic Benefits
- 100% solar-powered drying
- Eliminates open sun drying losses
- Improves product quality & shelf life
- Increases farmer income (value addition)
- Payback period: 6–12 months
- System life: 10–15 years
Capacity Variants
| Model | Capacity (Fresh Input) | Suitable For |
|---|---|---|
| Small | 25 kg | Individual farmers |
| Medium | 40–50 kg | SHGs / small businesses |
| Large | 60–80 kg | FPOs / rural enterprises |
Applications
Farmers & FPOs
Self Help Groups (SHGs)
Rural entrepreneurs
Food processing units
Herbal Product Manufacturers
Installation & Maintenance
- Installation Time: 1 day
- No foundation required (portable options available)
- Maintenance:
- Cleaning of glazing surface
- Tray cleaning after each batch
- Periodic inspection of structure
Optional Add-ons
- Solar-powered DC fan (forced convection upgrade)
- Hybrid heating (electric/biomass backup)
- Digital temperature & humidity monitoring
- Customized tray design for specific products
Manufacturer
KVB Green Energies
Providing innovative solar drying solutions with
proven performance across agricultural and food processing sectors.
Why Box Type Solar Dryer?
- Low-cost and easy to operate
- Ideal for decentralized rural use
- No fuel or electricity required
- Enhances product quality and profitability
System in Action
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