Domestic Solar Water Heater System with Galvanized Powder Coated Stand Frame

Product Description

Technical Specifications: Vacuum Tube outer diameter: 47 mm. Vacuum Tube inner diameter: 37 mm. Tube Length : 1800 mm Outer tank Diameter : 480 mm. Inner tank Diameter : 380 mm. Tank Volume : 100 liters to 500 liters Temperature : 65 degree C to 85 degree C. Tank Insulation : PUF 50mm (Polyurethane foaming) Stand frame : Galvanized Powder coated Inner Tank Material : Stainless Steel grade 0.5 mm Outer Tank Material : Stainless Steel Method of Welding : Seam less and Non welding Technology. Type of Fasteners : Stainless Steel Type of Grommets : Silicon rubbers. Type of Circulation : Thermo siphon Electrical Back Up : 1.5 KW each (optional) Type of inlet feeding : Using gravity feeding tank for non pressure, low mixing of hot and cold water, and long life of inner tank No of tubes for various capacities is as under: CAPACITY47 mm58 mm 100 LPD1210 125 LPD15--- 150 LPD1815 200 LPD2420 250 LPD2824 300 LPD3530 500 LPD5550 Three main temperature ranges used are Low temperature : Hot water - 60A A C to 80A A C Medium temperature : Drying - 80A A C to 140A A C High temperature : Cooking & power generation - > 140A A C It has three main components, namely 1. Solar Collector 2. Insulated hot water storage tank and 3. Cold water tank with required insulated hot water pipelines and accessories. In the case of smaller systems (100 - 2000 litres per day), the hot water reaches the user end, by natural (thermo siphon) circulation for which the storage tank is located above the collectors. In higher capacity systems, a pump may be used for forced circulation of water. Working Principle In a typical solar water heater, water is heated by the solar thermal energy absorbed by the collectors. The hot water with lower density moves upwards and cold water with higher density moves down from the tank due to gravity head. A bank of collectors can be arranged in a series parallel combination to get higher quantity of hot water. A typical 100 litres insulated tank with a 2 m2 collector area, will supply water at a temperature of 60 - 80A A A A C. Based on the collector system, solar water heaters can be of two types. Flat Plate Collectors (FPC) based Solar Water Heaters The solar radiation is absorbed by Flat Plate Collectors which consist of an insulated outer metallic box covered on the top with glass sheet. Inside there are blackened metallic absorber (selectively coated) sheets with built in channels or riser tubes to carry water. The absorber absorbs the solar radiation and transfers the heat to the flowing water Economics (Tentative) A 100 lpd domestic solar water heating system (SWHS) can cater to a family of 4-5 persons It saves about 1500 units of electricity per annum equivalent to about Rs.5000/- per year.