The development of a solar wall module using a selective surface
A need was indicated for the identification of a possible new solar energy
product to improve the sales potential of a metal film with a selective surface,
manufactured by the industria I sponsor of this project (INCO).
A possible way of overcoming the disadvantageous economics of solar energy
collection was identified. This util ised the collection of solar energy by the
walls of buildings constructed in such a manner as to allow the transfer of
energy into the building, whilst providing adequate thermal insulation in the
absence of sunlight. The actual collection element of the wall, being metallic,
is also capable of performing the function of a low temperature heating .system
in the absence of sunlight. As a result of this, the proposed system, -bydisplacing
both the wa II and centra I heating system which would otherwise be necessary,
demonstrates economic benefits over systems which are constructed solely forthe<
purpose of collecting solar energy.
The necessary thermodynamic and meteorologi.cal. chara.cteristics and data: are
established, and applied to a typical urban site in the North of EngJand, for 0
typical average year, with and without a shading device incorporated into the
It is concluded that the proposed system may offer considerable benefit inredvc~
ing the effective heating season in all orientations of wall.