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.

Description

FIELD OF THE INVENTION[0001]The present invention relates to the area of solar water heating collectors, which absorb the radiation from the sun and convert the radiation into heat and convey this heat energy suitable for heating purposes in a building, a swimming pool, for process energy or tap water. Alternatively the panel transmit energy from the collectors to the atmosphere during a period of time where the outdoor temperature is lower than the interior temperature in the building.BACKGROUND OF THE INVENTION[0002]The traditional solar water heating systems available on the market today change all buildings visual character and appearance significantly. This limits to some extent the use of solar panels, especially in older and listed buildings. For this reason it has become increasingly difficult to meet the objective of increased use of solar energy as most countries and international organizations have set. There are several factors limiting the spread of the use of solar col...

AI Technical Summary

Benefits of technology

[0039]The slope of a solar heated liquid cooled surface having integrated a collector panel according to the present invention a climate shield of a building can be chosen freely between horizontal and vertical and is only limited by the manufacturer's instructions for the climate shield. Thus, the collectors of the present invention are “invisible” as a result of being integrated behind the climate shield, thereby not affecting the view of the building, which is visually unmoved.

[0061]In many countries it is normal to use non-organic fibre mats or porous plates for thermal insulation of building structures. In some regions polystyrene based air bubble foam sheets for the same purpose or even reflective foil insulation are widely used. These insulation components can be performed with varying density and physical dimensions for obtaining properties suitable for the isolation of various designs. It will be obvious to design and use relatively hard insulation panels for this invention so that the plates are aligned similarly to the underside of the liquid-cooled climate-screen interfaces. This reduces total height and thickness etc, plus reduces the number and size of cavities and should be able to eliminate cold bridges, etc. In some cases, such insulation panels laminated with the heat conveying surfaces facilitate installation.

Problems solved by technology

This limits to some extent the use of solar panels, especially in older and listed buildings.

For this reason it has become increasingly difficult to meet the objective of increased use of solar energy as most countries and international organizations have set.

There are several factors limiting the spread of the use of solar collectors.

Price is clearly the primary, but alteration and change of the building and technical complexity is of significant scale.

This design limits the prevalence of solar collectors considerably, but their costs and complexity and the necessity to rebuild the constructions involved and change their appearance and character are a more important limitation for their common distribution.

This creates bad transmission of heat energy between the underside of a climate shield and the heat-carrying medium in the radiant heat tube.

Clearly this shingle is not designed to be incorporated invisible behind a climate shield of a building and there is no hint in the patent to obtain such object.

However, nor this shingle is designed to be incorporated invisible behind a climate shield of a building and there is no hint in the patent to obtain such object.

However, the use of a building as an envelope for a solar collector reduces the thermal efficiency, primarily due to a reduction of the absorbed short wavy energy from the sun caused by colour and surface coatings on the building.

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