Solar cold storage rooms utilize high-density polyurethane (PU) foam panels (typically 100-150mm thick) for maximum thermal insulation, framed by durable materials like pre-painted galvanized iron (PPGI) or stainless steel. Key components include photovoltaic solar panels, battery banks, thermal storage (PCM), and aluminum checkered floor plates for durability. Core Structural and Insulation Materials Insulation Panels: Polyurethane (PU) sandwich panels are the standard, offering superior thermal resistance (\(0.018\) to \(0.023\) W/m·K) and moisture resistance.Panel Skins: Pre-painted Galvanized Iron (PPGI), stainless steel, or PVC-coated steel are used for inner/outer layers to ensure durability and corrosion resistance.Flooring: Reinforced with plywood, non-slip aluminum checkered plates, or galvanized steel to withstand heavy loads.Doors: Insulated cam-lock doors, often with heating elements (for freezers) to prevent icing, and PVC strip curtains to minimize air leakage. Solar Power System Components Solar Panels: Monocrystalline or polycrystalline photovoltaic panels are mounted on the roof to convert sunlight into electricity.Energy Storage: Gel batteries (e.g., 200 Ah) or Lithium-ion batteries store energy for night-time operation.Inverter/Controller: Smart sine wave inverters with Maximum Power Point Tracking (MPPT) chargers manage energy conversion. Alternative/Enhanced Technology Phase Change Material (PCM): Integrated to store thermal energy, allowing for 24/7 cooling without heavy reliance on electrical batteries. Finishing and Assembly Sealing: Silicone sealant and cam-lock mechanisms connect panels to create an airtight, vapor-proof seal.Lighting: Waterproof LED lights are used for interior illumination.
Solar cold storage rooms utilize high-density polyurethane (PU) foam panels (typically 100-150mm thick) for maximum thermal insulation, framed by durable materials like pre-painted galvanized iron (PPGI) or stainless steel. Key components include photovoltaic solar panels, battery banks, thermal storage (PCM), and aluminum checkered floor plates for durability. Core Structural and Insulation Materials Insulation Panels: Polyurethane (PU) sandwich panels are the standard, offering superior thermal resistance (\(0.018\) to \(0.023\) W/m·K) and moisture resistance.Panel Skins: Pre-painted Galvanized Iron (PPGI), stainless steel, or PVC-coated steel are used for inner/outer layers to ensure durability and corrosion resistance.Flooring: Reinforced with plywood, non-slip aluminum checkered plates, or galvanized steel to withstand heavy loads.Doors: Insulated cam-lock doors, often with heating elements (for freezers) to prevent icing, and PVC strip curtains to minimize air leakage. Solar Power System Components Solar Panels: Monocrystalline or polycrystalline photovoltaic panels are mounted on the roof to convert sunlight into electricity.Energy Storage: Gel batteries (e.g., 200 Ah) or Lithium-ion batteries store energy for night-time operation.Inverter/Controller: Smart sine wave inverters with Maximum Power Point Tracking (MPPT) chargers manage energy conversion. Alternative/Enhanced Technology Phase Change Material (PCM): Integrated to store thermal energy, allowing for 24/7 cooling without heavy reliance on electrical batteries. Finishing and Assembly Sealing: Silicone sealant and cam-lock mechanisms connect panels to create an airtight, vapor-proof seal.Lighting: Waterproof LED lights are used for interior illumination.