GR1010866B - Amplifying plane mirrors placed in front of the parabolic mirrors of solar collectors composed of a metal and large-diameter vacuum tube set at the focus of the paraboloc mirror - Google Patents

Abstract

In the Market there are Solar Collectors (1) Vacuum Tube (33) in the focus of a semi-cylindrical parabolic mirror (15). And the metal tube (6) inside the glass tube (9) with the vacuum (33) is of large diameter, so that the focuses (34) of the parabolic mirror (15), throughout the day's sunshine, fall on the adjacent cylindrical surface, which will also have the black Selective (31), without moving the mirror (15). In front of these horizontal semi-cylindrical parabolic mirrors (15), Reinforcing Flat Mirrors (36) will be placed, of the same length as the parabolic (15), and of such width as to fill the lower part of the parabolic with useful reflected radiation (35), with its appropriate inclination, during placement, as (Fig. 1). Also, there is a possibility, before Reinforcing, that the opening of the lower part of the parabolic (15) may have been increased, for an even greater increase in the Thermal Load, and for this benefit the Invention.

Description

[0001] TITLE.

[0002] AMPLIFIERS FLAT MIRRORS PLACED IN FRONT OF THE PARABOLIC MIRRORS OF SOLAR COLLECTORS, (METAL AND LARGE DIAMETER VACUUM TUBE, AT THE FOCUS OF THE PARABOLIC, AND HORIZONTALLY PLACED).

[0004] DESCRIPTION

[0005] Solar Collectors (1) Double or triple walled Vacuum Tube, and consisting of an inner metal tube inside a glass tube (9), and with the appropriate sealing of both ends (4), and the creation of a high vacuum (10 to -4) or (0.0001) bar! (12) And with the side surface (3) covered with Selective Black Titanium. (32) And if the tube is closed circuit, the inner metal is double walled (b). The metal one, either open circuit or closed (6), is of large diameter so that when the vacuum tube (1) is placed in the focus of a parabolic semi-cylindrical mirror (15), it concentrates the daily sunshine throughout the day, concentrating the focuses (34) on the Selective Side Surface (32), so that without moving the mirror (15) we can exploit all the daily Solar Energy and radiation (35)! The Collectors (1) are usually placed horizontally (to reduce Optical Pollution), and with the orientation of the mirror (28) constantly towards the South and with the inclination of the mirror (15) depending on the Geographical Latitude of the Installation area, and perhaps also the time of year. So far with the existing Technology! And our invention provides for placing, in front of the lower part of the semi-cylindrical parabolic mirror (15), horizontally (approximately) placed, even between the parabolic (15) [in a central installation of such collectors (1)], a Flat Reinforcing Mirror (36) appropriately, (as to their inclination and their support). At the same length (length) as the parabolic (15), and as wide as its placement will allow, to give us beneficial reflected radiation (35)! And so that the linear focuses (34) on the Selective (32) of the metal tube (6), from the lower side of the parabolic mirror (15), increase in sun concentrations by approximately 40%! (From our measurements).

[0006] This is a substantial addition without a major financial burden on the system. Only because of this addition does the invention become useful, so that it leads us to a beneficial techno-economic result and product, due to greater yields per collector (1) and can proceed to the International Market!

[0007] Then comes the 3rd feature (if we wish or the needs of the

[0008] installation require it, and outside the standard construction), to grow

[0009] the opening of the lower side only of the parabolic mirror (15) that we have and

[0010] the possibility of enhancing the concentration of the espons(34) in suns

[0011] The dimensions are indicative and not binding with respect to our invention. At the same time,

[0012] the upper side of the mirror (15), which does not have the possibility of being reinforced in

[0013] suns, and we leave the standard and limited opening width from the

[0014] axis of the vacuum tube (3) at least 30 centimeters X length 1.97 m., (Fig.1)

[0015] (We take care of the spacing of the collectors (1) (in a central installation), so that one collector does not shade the other. The Reinforcing Mirrors (36) were Invented for Reinforcing the sun in the linear Breaks (34) on the vacuum tube, where concentrated photovoltaic cells - cells, water-cooled, are placed inside the vacuum, in rows in the width of the linear breaks (34), around noon, and to increase their electricity production! But why not use these? I thought about it for the Solar Collectors (1) which are only for the Use of their Thermal Loads! Which also increase these, the Thermal Loads, by 40% as well! Before installing the Reinforcing Flat Mirror (36) by the power of the semi-cylindrical parabolic itself mirror (15), to increase the lower opening of the parabolic (15), before and after the Reinforcement, so as to increase, and for this reason, the increase in the Thermal Solar Load!

[0016] Figure (1) shows a Solar Collector. A three-walled Vacuum Tube (1) of a closed circuit, at the focus of a semi-cylindrical parabolic mirror (15), in a horizontal, or almost horizontal, position, with respect to the roof, oriented to the South, and in front of it, the Intensifying Flat Mirror (36) is placed, at an angle of inclination such that the incident solar radiation (35) on the Intensifying Flat Mirror (36) reflected, falls on the lower part of the parabolic mirror (15) increasing the incident radiation (35) and the concentration suns in the breaks (34) of the lower part of the parabolic (15)! And, as mentioned above, the increase in the Thermal Load has been experimentally measured, approximately 40%! A serious percentage that justifies our Application for the registration of our Invention!

Claims (2)

1. CLAIMS 1. In the Solar Collectors (1) Vacuum Tube (33) [made of a metal tube of relatively large diameter (6) with a selective "black Titanium" surface (32), and inside a glass tube (9), which forms a high vacuum (33)], placed (fixed and not movable), in the focus (34) of a parabolic mirror (15), and the entire Collector (1) placed horizontally, oriented exactly to the South, (and with the appropriate inclination of the parabolic depending on the Geographical latitude, and the time of year!) We will place in front of the parabolic (15) and with the appropriate inclination an Intensifying Flat Mirror (36), and thus we fill it with more sun, which falls on the lower part of the parabolic reflector (15), by approximately 40% , from the incident on the added Reinforcing Flat Mirror (36), and which is reflected incident on the lower part of the semi-cylindrical parabolic mirror (15), and in turn increases the suns (35) in the linear focuses (34) of , on the adjacent selective Surface (32) (Fig.1) ! And which simultaneously increase the Thermal Loads which through the Selective Surface (32) are transferred to the circulating within the Solar Collectors, liquids or water of Open or Closed Circuit (7) ! (Of course the Reinforcing Flat Mirrors (36) in front of the lower part of the parabolic mirror (15), to increase the suns (35) in the linear breaks (34) of the vacuum tube (33), within which the concentrated water-cooled photovoltaic cells can be placed, for their efficiency in Electricity Generation! My Patent Number 1009857 (31-10-2014) And my invention is to use the Reinforcing Flat Mirrors (36), in front of the parabolic (15) of the large diameter (6) Metal Vacuum Tubes (33), for the increase only, of the Delivered Thermal Loads, in the ΧΖΝ. of residences, Hotels, Hospitals, Industrial uses, or Air Conditioning, etc.! The increase has been calculated and measured, at 40% (of the delivered Thermal Load, before Reinforcement), and when the Reinforcing Flat Mirror (36), will not increase the cost, not even by 10%, (and with its installation!) And in this benefit lies our Invention! For their use in these Cases, of Use of Hot Water & Liquids! The Reinforcing Flat Mirror (36) that will be placed in front of the lower part of the semi-cylindrical parabolic mirror (15), will be the same length (length) as the semi-cylindrical parabolic (15), and of a suitable width, so that only beneficial reflected solar radiation (35) will be reflected! 2. In the Solar Collectors (1) of a Metal Vacuum Tube (33) in the focus (34) of a parabolic reflector (15), and by placing in front of the parabolic (15) an Intensifying Flat Reflector (36), according to the above Claim 1, the lower opening of the parabolic (15) is increased beyond the standard one, and maintaining the parabolic line and the breaks (34) on the adjacent Surface, (32) during the 8 hours of daily sunshine (35), in order to increase even more the incident radiation (35), but at the same time to provide better efficiency from the Intensifying Flat Reflector (36)!