Do solar water heaters need electricity?
Solar water heater is the need for electricity, usually need to protect the use of air traffic control and solar water heater operation.Light and heat utilization: it is the collection of solar radiation energy, through the interaction with the material into heat energy to use. At present, the most widely used solar collector, there are 3 types of flat plate collector, vacuum tube collector and focused collector. Solar power: the future of large-scale use of solar energy is used to generate electricity. There are two main ways of using solar energy:
Working principleThe sun through the first layer of glass heat pipe according to black heat absorbing layer second layers of glass, solar energy heat absorption, because between two layers of glass is vacuum insulated, the heat transfer will be greatly reduced (heat radiation still exists, but there is no thermal conduction and convection), most of the heat is only transmitted to the glass tube the water inside the glass tube, heating water, heating water and light along the glass tube heating surface to enter the insulation water storage barrel, the barrel temperature is relatively low water along the glass tube into the back surface of glass tube, this constant cycle, the preservation of the water in the water bucket so as to achieve the continuous heating, hot water the purpose of.
Photo thermo electric conversion. Heat generation by solar radiation. The utility model is characterized in that the heat energy absorbed by the solar collector is converted into the working substance steam, and then the steam driven turbine drives the generator to generate electricity. The first process is the conversion of light and heat, and the latter is the conversion of heat and electricity.Optical electrical conversion. Its basic principle is to use the photovoltaic effect to convert solar radiation directly into electrical energy.
