Panel for collecting solar energy from a bituminous surface covering on a building heated by solar radiation

Abstract

A solar energy collector panel intended for invisible incorporation behind and in thermal contact with a climate shield ( 94 ) of bituminous roofing felt or tar board on a building, said panel being made of a heat-conducting material and having at least one through- going fluid-impervious duct ( 91 ) embedded in said panel for passing a thermal energy carrying-capable fluid through it and having or being attached to a flat member ( 93 ) of heat-conducting material and substantial surface area intended to be mounted in direct physical contact with said climate shield. The solar panel provides excellent exploitation and transmission efficiency of sun radiation to an energy carrying-capable fluid in the fluid-impervious duct.

1 - 18 . (canceled) 
     
     
         19 . A solar energy collector panel intended for invisible incorporation behind and in thermal contact with a climate shield ( 11 ,  21 ,  31 ,  46 ,  67 ,  94 ) of roofing felt on a building, said panel being made of a heat-conducting material and having at least one through-going fluid-impervious duct ( 17 ,  25 ,  35 ,  45 ,  52 ,  62 ,  63 ) embedded in said panel for passing a thermal energy carrying-capable fluid through it and being attached to a plate member ( 12 ,  22 ,  32 ,  44 ,  55 ,  65 ,  71 ,  81 ,  91 ,  92 ,  93 ) of heat-conducting material and substantial surface area intended to be mounted in direct physical contact with said climate shield, said solar energy collector panel comprising said at least one through-going fluid-impervious duct has a body ( 71 ) having two opposite wings ( 74 ) as an integral part of said body, each wing being provided with a slot ( 74 ) intended for receiving a flange ( 82 ) of a heat-conducting plate member ( 81 ) in a snugly fit, wherein said panel with its fluid-impervious channel or duct has been produced by an extrusion process. 
     
     
         20 . A solar energy collector panel according to  claim 19 , wherein said roofing felt is bituminous a material(s) or tar board. 
     
     
         21 . A solar energy collector panel according to  claim 19 , wherein said heat-conducting material(s) of the plate member ( 12 ,  22 ,  32 ,  44 ,  55 ,  65 ,  71 ,  81 ,  91 ,  92 ,  93 ) is (are) a metal. 
     
     
         22 . A solar energy collector panel according to  claim 19 , wherein said heat-conducting material(s) of the plate member ( 12 ,  22 ,  32 ,  44 ,  55 ,  65 ,  71 ,  81 ,  91 ,  92 ,  93 ) is (are) a metal selected from the group comprising aluminium and aluminium alloys, copper and copper alloys, iron and iron alloys, in particular the different types of stainless steels. 
     
     
         23 . A solar energy collector panel according to  claim 19 , wherein said heat-conducting material(s) of the plate member ( 12 ,  22 ,  32 ,  44 ,  55 ,  65 ,  71 ,  81 ,  91 ,  92 ,  93 ) has (have) a thermal conductivity of more than 10 Wm 2 /K. 
     
     
         24 . A solar energy collector panel according to  claim 19 , wherein said at least one through-going fluid-impervious duct ( 17 ,  25 ,  35 ,  45 ,  52 ,  62 ,  63 ) is placed above the surface of the flat member ( 12 ,  22 ,  32 ,  44 ,  55 ,  65 ) and optionally the outer surface of said duct has the form of a triangular list. 
     
     
         25 . A solar energy collector panel according to  claim 19 , wherein said at least one through-going fluid-impervious duct ( 17 ,  25 ,  35 ,  45 ,  52 ,  62 ,  63 ) is placed below the surface of the flat member ( 71 ,  81 ,  91 ,  92 ,  93 ) and preferable is embedded in or surrounded by insulation material ( 95 ). 
     
     
         26 . A building having a climate shield ( 11 ,  21 ,  31 ,  46 ,  67 ,  94 ) of bituminous roofing felt or tar board and a solar energy collector panel according to  claim 19  invisible incorporated behind and in thermal and physical contact with said climate shield. 
     
     
         27 . A building according to  claim 26 , wherein said surface area of the flat member ( 12 ,  22 ,  32 ,  44 ,  55 ,  65 ,  71 ,  81 ,  91 ,  92 ,  93 ) of the solar energy collector panel covers at least 50%, more preferable at least 80%, and most preferable 90% of the area of the climate shield ( 11 ,  21 ,  31 ,  46 ,  67 ,  94 ). 
     
     
         28 . A building according to  claim 26 , wherein said surface area of the flat member ( 12 ,  22 ,  32 ,  44 ,  55 ,  65 ,  71 ,  81 ,  91 ,  92 ,  93 ) of the solar energy collector panel covers nearly 100% of the area of the area of the climate shield ( 11 ,  21 ,  31 ,  46 ,  67 ,  94 ). 
     
     
         29 . A building according to  claim 26 , wherein an insulation material is mounted between said solar energy collector panel and the remaining construction part of the building. 
     
     
         30 . A building according to  claim 29 , wherein each end of said at least one through-going fluid-impervious duct ( 17 ,  25 ,  35 ,  45 ,  52 ,  62 ,  63 ) is connected by tubing to a combination of a heat pump and a heat exchange appliance in said building, such as a water heater, a radiator, a central heating or cooling unit, a floor heating unit, or a swimming pool. 
     
     
         31 . A building according to  claim 30 , wherein more than one solar energy collector panel are incorporated behind and in thermal contact with a climate shield of a building and each end of the through-going fluid-impervious ducts in the panels is connected by manifolds and tubing in parallel or series to a combination of a heat pump and a heat exchange appliance in said building, such as a water heater, a radiator, a central heating or cooling unit, a floor heating unit, or a swimming pool. 
     
     
         32 . A building according to  claim 29 , wherein each end of the through-going fluid-impervious duct ( 17 ,  25 ,  35 ,  45 ,  52 ,  62 ,  63 ) of the solar energy collector panel is connected by tubing to a heat exchange appliance in said building and is used to convey heat from the interior of the building to said climate shield from which it is radiated or conducted to the surrounding environment. 
     
     
         33 . A method of incorporating a solar energy collector panel according  claim 19 , wherein the collector panel is incorporated invisibly behind and in thermal and physical contact with a climate shield on a building, wherein the climate shield is adhered to a substantial surface area of the collector panel with a bituminous or tar material or other adhesive material.