Introduction
Cold rooms are essential in modern food processing facilities, offering critical temperature control for perishable goods. A key component in their construction is the PUF Panel (Polyurethane Foam Panel), which provides exceptional thermal insulation. These panels are sandwiched between Pre-Painted Galvanized Iron Sheets (PPGI), with foam density typically maintained at 40±2 kg/m³, ensuring energy efficiency and compliance with hygienic design standards.
Types of PUF Panel
- Single Groove Panel: Ideal for general industrial buildings.
- Double Groove Panel: Designed specifically for cold rooms, offering better temperature retention and minimal heat transfer.
PUF Panel Manufacturing Process
Step-by-Step Production Overview
- De-Coiling System: Feeds PPGI sheets into the line.
- Roll Forming System: Shapes metal sheets into desired profiles.
- Polyurethane Foaming System: Applies foam between sheets.
- Double Belt Conveyor System: Ensures even pressure and foam curing.
- Cutting System: Shapes panels to exact dimensions.
- Cooling System: Promotes efficient heat dispersion.
- Stacking System: Organizes finished panels automatically.
- Wrapping System: Protects panels from rust and surface damage.
Key Components of Cold Storage Room Design Key Components of Cold Storage Room Design
Essential Elements:
- PUF Panels: Custom thickness from 60 mm to 150 mm depending on the temperature range.
- Insulated Doors: Sliding or swing type.
- Refrigeration System: Includes indoor & outdoor units.
- Electrical Panel: Manages refrigeration control.
Recommended Insulation Thickness: | Temperature Range | Panel Thickness | |-------------------|------------------| | +7℃ to +25℃ | 60 mm | | 0℃ to +7℃ | 80 mm | | -15℃ to 0℃ | 100 mm | | -30℃ to -15℃ | 120 mm | | -40℃ to -30℃ | 150 mm |
How the calculate refrigeration Capacity (Heat Load) of Storage Cold Room?
To size the refrigeration capacity, gather:
- Room size (L × W × H)
- Required temperature & RH
- Type of product (e.g., meat, dairy, vegetables)
- Product load per day
- Ambient temperature
- Panel thickness
- Pull-down time
- No. of personnel & working hours
Types of Cold Storage Room
1. Bulk Cold Storage
Used for storing a single seasonal commodity like potatoes or apples.
2. Multi-Purpose Cold Storage
Supports various products like meat, poultry, or dairy across different temperature zones.
3. Frozen Food Storage
Includes deep freeze systems maintaining -18°C to -30°C for meats and processed foods.
4. Walk-in Cold Storage Units
Compact units for distribution centers and food businesses, ideal for pharma, dairy, and beverages.
Step-by-Step Installation of a Cold Storage Room
- C-Channel Base: For panel anchoring.
- Wall & Ceiling Panels: PUF panels for structure and insulation.
- L-Angle Corner Joints: For reinforced connections.
- Silicone Sealing: Ensures airtight, moisture-resistant joints.
- Evaporator & Condenser Units: Handle internal and external heat exchange.
- Copper Pipe Interconnects: Carry refrigerant between units.
- Electrical Panel: Powers and controls refrigeration system.
Conclusion
Designing and installing a cold storage room requires technical expertise in food factory design, precise load calculations, and selection of insulation and refrigeration systems tailored to your food processing requirements. Collaborating with a professional food industry consultant ensures hygienic compliance, cost-effectiveness, and long-term performance.
Reference
1. https://www.cantekgroup.com/en/4/hotel-cold-storage-room - Image for Cold Room.
2. https://www.izopanel.pl/en/produkty/izowall-pir/ - Image for Single Groove Joint.
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