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Solar Thermal Crayford
Date Added: October 21, 2011 09:33:35 AM
Author: roberts campbell
Category: Business & Economy

Better Boiler installations is a new company but with a wealth of experience. With over 50 years of experience amongst the principal directors alone we offer After Care Service and Customer Satisfaction levels that we know will not be bettered. Solar thermal energy is the best known and most popular form of domestic renewable energy. The sun’s energy is collected by flat plate collectors or evacuated tubes (usually on the roof) which are orientated towards the sun in order to warm the property’s water. Inside the panels is a glycol mix which acts as anti-freeze in order to prevent freezing in cold periods whilst preventing it from boiling in especially hot spells. This hot fluid is then passed through a twin-coil cylinder (which looks very similar to traditional hot water cylinders, except for an additional flow and return that passes through the cylinder which helps to transfer the free heat from the sun into the cylinder which would otherwise just be heated by the boiler. Solar Thermal Crayford technologies harness the energy of the sun to provide thermal energy for solar water heating, solar pool heating, solar space heating and cooling, and industrial process pre‐heating. The umbrella term “solar thermal”*represents solar thermal technologies used for a variety of point‐of‐use applications. The amount of solar radiation that the U.S. receives is significant enough for solar thermal technologies to be an integral part of a clean energy future in any region. Solar thermal systems are composed of three main elements: solar collector(s), insulated heat transport piping, and heat storage. Some systems also employ the use of electronic controls, and in colder climates, a freeze protection strategy. Solar thermal electrice energy generation concentrates the light from the sun to create heat, and that heat is used to run a heat engine, which turns a generator to make electricity. The working fluid that is heated by the concentrated sunlight can be a liquid or a gas.Different working fluids include water, oil, salts, air,nitrogen, helium, etc. Different engine types include steam engines, gas turbines, Stirling engines, etc.All of these engines can be quite efficient, often between 30% and 40%, and are capable of producing 10’s to 100’s of megawatts of power. Solar thermal collectors produce heat, and are different from photovoltaic (PV) modules, which produce electricity.1 There are several types of thermal collectors: flat plate, evacuated tube, Integral Collector Storage (ICS), Thermosiphon, and Concentrating. Flat plate collectors are the most common type of collector in the US; typically copper pipes are affixed to an “absorber plate” contained in an insulated “box” covered with a tempered glass2 or polymer “coverplate.” Evacuated tube collectors consist of rows of parallel, transparent glass tubes. Each tube encloses an “absorber” assembly, and the entire tube is “evacuated” of air, leaving a vacuum; this vacuum acts as a highly efficient insulator, since air is required to transmit heat from the absorber to the glass. A fluid transfers the heat from the solar collector to a storage tank, where it is distributed for water or space heating purposes. Evacuated tube systems are generally used when higher temperatures or higher volumes of water are needed as well as for process heating and solar air conditioning systems. All Solar Thermal Crayford systems capture the energy of the sun by absorbing light as heat. Solar thermal power systems focus sunlight, usually with mirrors, to heat a fluid to high temperatures and drive an engine. This approach stands in contrast to photovoltaic solar power systems, in which light interacts with special materials directly to separate charges and generate electricity. Photovoltaic power enjoys many advantages, such as unattended operation and small-scale feasibility, but remains significantly more expensive as a source of large-scale power than solar thermal technologies. robertscampbells writes about Solar Thermal Crayford For further information please contact us on http://www.betterboilerinstallations.co.uk/