METHOD, DEVICE AND MAGNETIC TRAP FOR CONTROLLING ENERGY EFFICIENCY AND LIGHT TRANSMITTANCE OF SOLAR COLLECTOR WITH LIQUID HEAT CARRIER Russian patent published in 2010 - IPC F24J2/42 

FIELD: power industry.

SUBSTANCE: to transparent liquid-heat carrier there added is fine-grain ferromagnetic composition increasing light absorbing properties of the obtained suspension, e.g. cobalt powder or iron oxide powder, as well as colouring agents dissociating in liquid-heat carrier, aniline colouring agents, blue colouring agent or China ink. Elements of fine-grain composition have developed absorption surface of quanta of solar radiation and almost at once transfer the heat energy received with such method to liquid-heat carrier. Besides micron sizes of elements of fine-grain composition, as well as surface/particle mass ratio, determine relatively small velocity of their flowing in liquid, which provides their considerably uniform concentration in suspension even at natural convection. To the device for controlling energy efficiency of solar collector consisting of solar panel with circulation channel of liquid-heat carrier with supply and discharge connection pipes, with heat exchanger and hydraulic pump connected to them, there introduced and connected to circulation circuit of liquid-heat carrier is module for controlling the concentration of fine-grain ferromagnetic components in liquid-heat carrier, which are added to the device, in the form of magnetic trap with sediment pocket or cone, which is also equipped with inputs of manual or electric control of retention force of fine-grain ferromagnetic components in sediment pocket. In the device there provided is automatic support of the specified energy delivery performance or light transmittance of solar panel with liquid heat carrier.

EFFECT: magnetic trap provides entrapping of fine-grain ferromagnetic components and possibility of increasing light transmittance or energy delivery performance of solar panel during its being used eg as covering of hot-house.

12 cl, 2 dwg