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公开(公告)号：WO2015081961A1
公开(公告)日：2015-06-11
申请号：PCT/DK2014/000057
申请日：2014-12-01
Applicant: HELIAC APS
Inventor： PRANOV, Henrik , KOFOD, Guggi
CPC classification number: B29C59/04 , F24S23/31 , F24S23/80 , F24S23/81 , G02B1/11 , G02B5/0866 , G02B5/09 , Y02E10/43
Abstract: An optical element for use as a linear solar concentrator, comprising a polymer foil with a lower Fresnel lens mirror structure and an optional upper anti reflective layer, causing normal incident solar light to be deflected near the plane of the element. Arranging a multitude of such optical elements on a structure in such a way that the deflected light from each optical element will intersect a common focal line with a solar intensity of at least 10 times the direct normal intensity. The deflected light may be used in applications for concentrated solar power and concentrated photo voltaics. The optical element greatly reduces internal losses found in typical Fresnel lens mirror structures (microscopic and macroscopic), especially for large deflection angles. The main advantage is that the focusing element becomes flat, compared for instance with trough-like parabolic mirrors, reducing the complexity of both manufacture and deployment. A further advantage is that it is possible to manufacture such optical elements using high throughput roll-to-roll processes, greatly lowering the cost of manufacturing solar reflectors.
Abstract translation: 一种用作线性太阳能集中器的光学元件，包括具有较低菲涅尔透镜镜结构的聚合物箔片和可选的上抗反射层，使得正常入射的太阳光在元件的平面附近偏转。 在结构上布置大量这样的光学元件，使得来自每个光学元件的偏转的光将与具有至少10倍于直接正常强度的太阳光强度的公共焦线相交。 偏转光可用于集中太阳能和集中光伏的应用。 光学元件大大降低了在典型的菲涅尔透镜镜结构（微观和宏观）中发现的内部损耗，特别是对于大的偏转角。 主要的优点是聚焦元件变得平坦，例如与槽式抛物面镜相比，减少了制造和部署的复杂性。 另外的优点是可以使用高通量卷对卷制造这种光学元件，大大降低制造太阳能反射器的成本。
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公开(公告)号：WO2020120638A2
公开(公告)日：2020-06-18
申请号：PCT/EP2019/084765
申请日：2019-12-11
Applicant: HELIAC APS
Inventor： PRANOV, Henrik , MATSCHUK, Maria
IPC: G02B3/00
Abstract: A method of manufacture of an optical element for focusing electromagnetic radiation, comprising the steps of: (a) providing a first light-transmissive glass substrate having a front surface on which the electromagnetic radiation is incident in use and a back surface opposite to the front surface; (b) applying a liquid silicone resin to the back and/or the front surface of the glass substrate; (c) contacting the liquid silicone resin with a mould such that the liquid silicone resin adopts the form of the mould and forms microstructures extending over the surface(s) of the glass substrate to which the liquid silicone resin has been applied; (d) curing the liquid silicone resin to form a microstructured light-transmissive silicone coating; wherein the surface(s) of the glass substrate to which the liquid silicone resin is to be applied i s/a re roughened; an optical element for focusing electromagnetic radiation, comprising: a first light-transmissive glass substrate having a front surface on which the electromagnetic radiation is incident in use and a back surface opposite to the front surface; and a light-transmissive silicone coating on the back and/or the front surface of the substrate; wherein the silicone coating has formed thereon microstructures that focus the electromagnetic radiation incident on the optical element, and wherein the surface(s) of the glass substrate on which the silicone coating is formed is/are roughened; a solar concentrator comprising at least one optical element of the invention; a method of manufacture of the solar concentrator of the invention; and a method of manufacture of a mould for shaping a liquid silicone resin on a glass substrate.
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公开(公告)号：WO2018157895A1
公开(公告)日：2018-09-07
申请号：PCT/DK2018/000004
申请日：2018-03-01
Applicant: HELIAC APS
Inventor： PRANOV, Henrik
IPC: F28D17/02
Abstract: Disclosed is a thermal storage solution which can operate without any internal tubing or mechanical pumping in the heat reservoir, and features a heat transfer technology based on evaporation and condensation of heat transfer fluids that will prevent hot and cold zones in the thermal storage reservoir. The main advantage is that the reservoir will have a much lower cost, have more degrees of freedom regarding the interplay between storage capacity, input and output power, and can operate without any mechanical or pressurized parts.
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Patent Agency Ranking4.发明申请
公开(公告)号：WO2020120638A3
公开(公告)日：2020-06-18
申请号：PCT/EP2019/084765
申请日：2019-12-11
Applicant: HELIAC APS
Inventor： PRANOV, Henrik , MATSCHUK, Maria
IPC: G02B3/00
Abstract: A method of manufacture of an optical element for focusing electromagnetic radiation, comprising the steps of: • (a) providing a first light-transmissive glass substrate (20) having a front surface on which the electromagnetic radiation is incident in use and a back surface opposite to the front surface; • (b) applying a liquid silicone resin (30) to the back and/or the front surface of the glass substrate; • (c) contacting the liquid silicone resin with a mould such that the liquid silicone resin adopts the form of the mould and forms microstructures extending over the surface(s) of the glass substrate to which the liquid silicone resin has been applied; • (d) curing the liquid silicone resin to form a microstructured light- transmissive silicone coating wherein the glass surface has been roughened before application of the silicone.
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公开(公告)号：WO2019068773A1
公开(公告)日：2019-04-11
申请号：PCT/EP2018/076923
申请日：2018-10-03
Applicant: HELIAC APS
Inventor： PRANOV, Henrik , MATSCHUK, Maria
IPC: F24S70/00
Abstract: A solar thermal absorber (40) is described through which a heat transfer fluid can circulate to be heated by solar radiation (21 ) incident on an upper surface of the absorber. The absorber (40) comprising overlying layers of flexible foil (41,31,33,43) sealingly joined together at joins (61,62) to form plural enclosures (42,33) between respective co-joined layers. A first enclosure (33) provides a passageway for a heat transfer fluid to circulate. A second enclosure (42) is capable of being selectively filled with a gas, the second enclosure being above and overlying the first enclosure (33) such that solar radiation passes through the second enclosure (42) to reach the upper layer forming the fluid passageway. The upper layer (31 ) forming the fluid passageway comprises a wavelength selective flexible foil (10) comprising a polymer layer (12) with a surface nanostructure (12a) and a metal layer (1 1 ) conformally coating the surface nanostructure of said polymer layer and facing away from the fluid passageway.
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公开(公告)号：WO2021023681A1
公开(公告)日：2021-02-11
申请号：PCT/EP2020/071746
申请日：2020-08-01
Applicant: HELIAC APS
Inventor： PRANOV, Henrik
Abstract: A planar non-imaging optical element (10) for a solar concentrator is described. Groups of circular and concentrically arranged microstructures (35) are arranged to refract light incident normal to the plane (504) of the optical element (10) towards the centre point (502). The angle of the microstructures (35) with respect to the plane (504) of the optical element (10) within each group increases with increasing radial distance from the centre point (502) and are selected such that upon normally incident light (60) they to form a focal area common to all of the groups at a focal plane (506) of the optical element (10) and further selected such that the light refracted from the smallest radial distance from the centre point (502) within a given group and the light refracted from the largest radial distance from the centre point (502) within a given group cross at a plane (518) closer to the optical element (10) than is the focal plane (506).
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公开(公告)号：WO2020043854A1
公开(公告)日：2020-03-05
申请号：PCT/EP2019/073147
申请日：2019-08-29
Applicant: HELIAC APS
Inventor： PRANOV, Henrik
Abstract: A heat storage reservoir comprising: at least one input inlet for introduction of gaseous heat transfer fluid, or for introduction of superheated liquid heat transfer fluid, into the heat storage reservoir, and at least one liquid recovery system for recovery of liquid heat transfer fluid from the heat storage reservoir; and/or at least one gas outlet for recovery of gaseous heat transfer fluid from the heat storage reservoir, and at least one output inlet for introduction of liquid heat transfer fluid into the heat storage reservoir; and further comprising a volume of solid granular material, to which volume heat is transferred by means of a phase change from gas to liquid of a heat transfer fluid on contact of the heat transfer fluid with the solid granular material, and/or from which volume heat is transferred by means of a phase change from liquid to gas of a heat transfer fluid on contact of the heat transfer fluid with the solid granular material, which volume is in fluid connection with the at least one input inlet and the at least one liquid recovery system, and/or the at least one gas outlet and the at least one output inlet, and a pressure reduction system in fluid connection with the volume of solid granular material, characterized in that the pressure reduction system is arranged to reduce the gas pressure contribution arising from non-condensable species only.
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公开(公告)号：WO2017149095A1
公开(公告)日：2017-09-08
申请号：PCT/EP2017/054957
申请日：2017-03-02
Applicant: HELIAC APS
Inventor： PRANOV, Henrik , MATSCHUK, Maria
IPC: F24J2/08
Abstract: A focusing polymer foil for use in forming an optical element for use in a solar concentrator, and an optical element for use in a solar concentrator, arranged such that the focusing polymer foil is removable in order to renew the function of the optical element following damage and/or wear to the focusing polymer foil due to environmental conditions. A method of repair of such a damaged optical element, and methods of making the focusing polymer foil and optical element.
Abstract translation: 用于形成太阳能聚光器中使用的光学元件的聚焦聚合物箔以及太阳能聚光器中使用的光学元件，其布置成使得聚焦聚合物箔可移除以便更新 光学元件由于环境条件而对聚焦聚合物箔造成损坏和/或磨损的功能。 修复这种受损光学元件的方法，以及制造聚焦聚合物箔和光学元件的方法。
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