| Q. How Does a Domestic Hot Water System work? |
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A. What solar systems do is heating up water, using one or several solar collectors, which purpose is to catch the solar radiation and transform it into heat. This process takes place in the solar cell collector absorber, which conforms the inner part of the collector. Soon, the heat is transferred to the liquid, which flows within the Absorber, by a process of heat interchange. In order to diminish losses of energy in interchange with environment, the absorber is introduced in an opaque isolated box in its inferior part and their flanks and by facing the sun, is isolated with one or more transparent layers. Finally, the liquid warms up. The liquid for domestics utilization is water or, in places below freezing point, a water compound with antifreeze or, for industrial uses the heat transfer liquid, all type of thermal oils, which leads to the solar storage deposit according the usage terms. The transmission of the liquid to the storage tank or to the utility place, can be done by means of natural circulation, is called also Thermo Siphon or by a circulation pump, commanded by an electronics device called Differential Thermostat, or Solar Center Electric Unit. |
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| Q. What are the disadvantages of solar energy usage? |
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A. The Thermal Solar Energy is used for many purposes, including: water heating and a building or a swimming pool calefaction. The usage of solar energy has many environmental and economic advantages. However, heating by solar energy often has the necessity of a higher initial investment in comparison to other types of energy. On the other hand, in most cases, the initial cost is balanced by substantial fuel economies (according to the indications of accounts at list) during the lifetime of the product. Our solar systems expect a utility lifetime between 15 and 30 years. |
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| Q. The sun does not shine 24 hours a day, how can its energy be used at the desired moment? |
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A. There is a solar energy storage unit in use, which allows hot water storing during daylight, and to take advantage of it during the rest of the day. |
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| Q. Can a solar water heater replace an electrical heater or gas water heater? |
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A. Not entirely. Electrical or gas heating systems remain as supplementary back-up for the solar system of water heating. The reason is that the sun does not shine sometimes, even for a few days in a row. For that reason, the solar storage tanks are constructed with an integrated electrical support and/or with a connection beforehand to be connected to an electrical support or to gas support. In practice, in all cases the solar equipment works with connection to conventional power equipment that will perform action as a backup system for low energy days. A good solar equipment is constituted in such form that always takes advantage first by solar energy and later by conventional energy, gas or electricity, to be able to save at the most in the consumption and the account of Energy. A good designed solar equipment provides more than 60% of the necessary energy in annual calculation. |
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| Q. The Solar heaters, are effective also in cold climates like being in the north or in the mountains? |
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A. Yes. The solar collector is heated by catching solar rays and not by ground surrounding temperature. In general, the direct solar radiation that is the most important, is greater in cold climates or cold days, in respect to the losses of energy between the solar collector and the environment, that are proportional to the difference of temperature between the interior and the outside of the collector, is saved with an appropriate insulation design of this product. In colder climates, more energy is required to warm up the cold underground water, so to use solar energy, in such conditions Solar Energy System utilization, could dramatically lower the accounts of power use of the consumer. As shown above we save up to 60% power and costs. |
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| Q. What are the costs of installing a Solar Water Heater System? |
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A. The cost of a Solar System installation depends on a number of factors, such as the Sun’s Irradiation data in the installation place, the size of the system and the manufacturer of the system, the retailer, and the particular installer. Prices would normally go between: 1,000$ - 4,000$. With this, any subsidy to solar installation and other incentives available in the respective area will reduce that total cost. For the solar water heaters and the heating, it is necessary also to consider the price of fuel in consumption to maintain the system. In most of the cases, it will be necessary to add to the system cost, the cost of natural gas or supplementary electricity to obtain a quite exact estimation of how much you can hope to pay for a Solar System. The costs of installed equipment vary extensively, from $1,000 to more them $4.000. Although a Solar Water Heating System require more initial budget than the electrical heater or a gas heater, the economic calculations account to long time, easy demonstrate the solar system efficiency by far. |
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| Q. How much money will a Solar Water Heater System save? |
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A. It is difficult to say how much will be saved by installing a solar system depending on several factors. for example, the cost of the electricity or gas in each case, the cost of the solar equipment and the incoming energy from the sun. In general, the solar equipment repays the investment between 3 to 7 years and their life utility is between 15 years to 30 years. |
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| Q. Can I use a solar heating system to warm up my swimming pool? |
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A. The use of Solar Equipment to warm up a swimming pool is one of the most common uses of solar energy. The application of Solar System for swimming pool warm, increase the temperature of the water in 5 - 10 C degrees or more, and can prolong the swimming season by two to three months. Range of prices for the swimming pool Solar System, as large as depends on swimming pool characteristics and on other conditions, such as next trees that they shade it and of next buildings and whichever near of the sea this located. Comparing with conventional equipment to gas or an electrical heater of the swimming pool, the initial investment is balanced by other costs in near three years maximum, the utility time of these kinds of systems is around 15 years. This way one can repay his investment in a fifth of the time, you are enjoying its high performance. |
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| Q. Can the solar energy be used to warm up my home and business? |
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A. Yes, the answer is positive, although an authorized professional must design the suitable equipment. There are a no pre-designed residential heating solar systems, since this depends on innumerable technical factors, some related to the zonal climate and others related to the building, thermal isolation, build possibilities and the place available for the installation. |
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| Q. Which are the advantages of using Solar Thermal Energy to water heating in my home? |
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A. First, the "fuel" is free, the sun does not present invoice to pay. Despite the relative high, initial costs of the Solar Equipment. The reduced or avoided to power costs, always can payback, your financial inputs. The Thermal Solar System will only require expenses for the maintenance and these plows practically null. Secondly, Solar Water Heaters to pave to water heaters and other utilization, these use clean technology and do not contaminate environment. Your contribution to environmental contamination with carbon dioxide, sulfuric acids, acid rain and other gases will reduced to the minimum.
Solar Collectors Solar collectors are the essentials components of Solar Water Heaters, Solar-Heating and Solar Cooling Systems. Solar Collectors getting the Sun’s Irradiation energy and processing them for an inner flow liquid heating, through an energy exchange procedure. There are several types of Solar Collectors: Flat Plate Solar Collectors, Evacuated Tubes Solar Collectors, Concentrators, CPC solar collectors, Photo Voltaic and so. This web page is referring to Flat Solar Collectors for domestic, industrial and commercial utilization and requires Temperatures below 120 ?C Flat Solar Collectors are the most utile type of Solar Collector for Solar Water Heating Systems, for Solar Pool Heaters, for Solar Space Heating Systems, for low temperature industrial needs (Laundry, fabrics, food, leather, shoes and so) and also in Hotels and Hospitals A typical flat-plate collector is an insulated metal box with a glazing cover and a special coated absorber plate.
Solar Tanks Solar Tanks are essential components in solar water-heating systems. They keep the collected energy. The collected solar energy, in a heated form expression, is stored in a liquid compound (normally water), in both solar tank types, the open loop (the liquids in the solar collector and in the costumer tank are the same), and in the closed loop (where the liquids are different). For the required separation of these different liquids, the system, have a heat exchanger, built-in the tank or connected to it. There are several types of Solar Tanks: Horizontal Tank, Vertical Tank, Open Loop Tank, Built-In Heat Exchanger Tank and Built-In multiple Heat Exchangers Tanks. The two kinds are Electric Built-In Back-Up Tank and/or Prepared for External Back-Up Connection Tank. This web page is referring to Standard Solar Tanks with Liquid Capacity from 80 Li (20 Gal.) to 300 Li (80 Gal.). Types: Horizontal, Vertical, Open Loop, Single Closed Loop, and Double Built-In Heat Exchangers. For: domestic, industrial and commercial utilization. Also Electric filled Boilers from 30 Li (8 Gal.) to 300 Li (80 Gal) Capacity Standard Solar Tanks are the most common type for Solar Water Heaters and for Solar Space Heating Systems, in Domestics and Commercial usage. Typical standard Solar Tank is an insulating metal vessel with Enamel or Ceramic, special protective coat. |
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