GST NO.- 27AACCA4583F1ZQ
FAQ's
The main part of the Solar Water Heating System is the Flat Plate Collector or in common parlance 'PANEL'. Metallic strip (mainly of Copper) is coated with thin layers of Nickel and Chromium, which is called as Solar Selective Coating. This selective coating ensures highest degree of absorption of Solar Heat and least possible emission of the same. This results in optimal utilization of the Solar Heat. This component, which is the heart of any Solar Heating System, is known as Absorber Fin.
In every Flat Plate Collector (panel) there are number of such absorber fins, which are connected on both sides to copper pipes known as headers. The heat collected by the Absorber Fin is transferred to the liquid flowing through the tubes / pipes. The liquid so heated becomes lighter & is pushed up by the cold water at the bottom helping it fill the Hot Water Storage Tank. Thus the cold water is continuously heated and collected in the Hot Water Storage Tank throughout the day. This is on the basis of natural thermo-siphon.
The Solar Flat Plate Collector is provided with insulation, which prevents heat loss. Similarly the Hot Water Storage Tank and the pipes carrying water upto user point are also properly insulated. This ensures minimum drop in the temperature of the hot water. As a result, you get hot water even on cold mornings.
The main use of hot water is for bathing. It is also used for washing of clothes and utensils to help less consumption of soap and detergent to get rid of stubborn dirt and grime. To clean floors and disinfect surroundings with added dermicides. It can also be used for preheating to save fuel and electricity to raise the temperature of normal or below normal cold water. The Users could be Homes, Hospitals, Hotels, Hostels, Industries, Laboratories, Laundries etc?
Metal utensil gets heated in the sun but due to the emission of heat gets cooled fast. Heart of the Solar Water Heating System, THE ABSORBER due to the selective coating results in absorption of maximum heat and loss of minimum heat due to emission. As a result the heat is retained effectively in the Solar Water Heating System as compared to any other uncoated Metal. This confirms that the efficiency of Solar Water Heating System depends mainly on the quality of the absorber used.
- Solar system should be installed with the panel at particular angle from the floor attitude/latitude of the city. Panel should have proper & sturdy support on both sides. The entire system should be properly installed on the terrace/ platform. The installation of piping should start from collector side so that unnecessary pull and stress in avoided on that side. The collector should be installed on the southwest corner of the terrace with a slope on the south side.
The collector of the solar water heating system should be receiving the sun light minimum for 5.5hours per day. The cold water should be on minimum 2.5-meter elevation from bottom of the panel. Proper vent should be provided for releasing the steam/air trapped in the system. The piping should be properly examined after installation to ensure that there is no leakage before insulating. There should be a good quality non-return valve to ensure that hot & cold water does not mix. While installing the hot water tank on the stand, proper care should be taken to ensure that no stress develops on the welded portion.
While selecting water-heating system your needs and usage habits should be taken into account.
In conventional thermo-siphon system for proper flow of hot water in the pipe equivalent amount of cold water should go into the hot water tank. Hot water should be used keeping this in mind.
The glass on the panel should be kept clean.
Overhead cold water tank should always have water.
Solar Thermal Energy is used for heating by absorbing the heat from Sunlight. Converting Sunlight into electricity produces solar electricity. Solar heating system cannot be used to produce electricity at present.
The life of solar water heating system depends on the absorber, the construction of the collector, quality of hot water tank & insulation etc. As mentioned above, a M. S. tank may get rusted & start leaking after 4-5 years, thereby resulting in lot of headache & expenditure for replacement. An ideal solar water heating system should have high quality panel, stainless steel (SS 304) tank, good quality pipes of standard make & proper insulation. These things along with use of soft water ensure a long life of system. Absorbers manufactured with the existing technology go through the coating processes at 28 degree Celsius temperature. If the cold-water tank remains empty during the day (which possibility cannot be avoided completely), temperature of approximately 180 degree Celsius is created in the collector This causes the coating at the absorber to weaken. This results in the reduction of effective life of solar water heating system. In Aksons? PVD Sunselect (TM) coating process, we heat the absorber material to 300 degree Celsius while applying the solar selective coating on it. Thus our absorber retains its efficiency and the coating even after going through the temperature of 180 degree Celsius for hundreds of hours. We believe that the solar water system manufactured according to our technical benchmark and having our absorber will have a life span of more than 25-years.
A technically sound system installed by skilled technicians coupled with usage of water having salt contents of less then 100ppm will require minimum maintenance. In this situation the only maintenance work, which can easily be done by any common man, is removing the dust on the glass of panel. If there are sediments / impurities in the water, remove the nut-bolts of flange of header below the panel to let the water and impurities go out. If the water contains dissolved salts more than 100ppm then you will have to use water softener or you have to cleanse the system with water mixed with acid after certain period. After 7-8 years the rubber parts of the collector are advised to be replaced. Please ensure that the silicon sealant is reapplied every 4-5 years to avoid leakage of water in the collector. Electrical components of a forced circulation system may need repairs replacement. Therefore before buying a solar water heating system you have to find whether the seller offers such service. Apart from this no other maintenance is required. For forced circulation systems, electrical maintenance may be required.
Generally cold water at 20 degree is converted to hot water at 60deg. For this, assuming average availability of the sunlight for 5.5hrs/ day the capacity of system is decided. For deciding the required capacity of Solar Water Heating System, habits of usage of hot water, number of persons in the household etc. need to be taken into account.
To protect the interest of consumer and ensure proper return of their money the Bureau of Indian Standards (BIS) benchmarks certain standards for every item. Based on these quality standards a License to manufacture is issued& the collector confirming to BIS 12933 - carries ISI mark. ETC systems are also covered under BIS 16544:2016.
The selection of system should be done based on the proper technical specifications. The system adhering to these specifications with most competitive price should be chosen.
The cold water tank should be full otherwise the steam generated can cause accident. The water coming from pipe is hot and can cause burn so you should not take both directly under the pipe/ shower without a good quality mixer.
The manufacturer /dealer takes responsibility for the material used in the system & its workmanship for a period called as warranty