초록 ▼

A flat plate solar boiler, having one face which is exposed to solar radiation to heat a liquid within the boiler, also has its opposing face, or the dark side of the boiler, indirectly heated by solar radiation thereby to minimize heat losses from the boiler and to apply further input heat to the b

A flat plate solar boiler, having one face which is exposed to solar radiation to heat a liquid within the boiler, also has its opposing face, or the dark side of the boiler, indirectly heated by solar radiation thereby to minimize heat losses from the boiler and to apply further input heat to the boiler. The dark side or second face of the solar boiler is indirectly heated through a metallic plate which is in conductive engagement with the second face of the boiler, extends beyond at least one of the side edges of the boiler, and has a radiation absorptive material on an extension portion of the plate facing the sun. In an alternative embodiment, the second face of the boiler is heated by use of a second solar boiler which is disposed in laterally spaced relation to the first boiler to provide a heated liquid which is circulated past the second face of the first boiler.

대표청구항 ▼

A solar boiler comprising a container having a liquid therein, said container having a first metallic surface on one side of said container adapted to face the sun and adapted to be heated by solar energy incident on said first surface thereby to heat the liquid in said container, said container hav

A solar boiler comprising a container having a liquid therein, said container having a first metallic surface on one side of said container adapted to face the sun and adapted to be heated by solar energy incident on said first surface thereby to heat the liquid in said container, said container having a second metallic surface on the opposite side of said container disposed in spaced relation to said first surface and isolated from direct exposure to the sun by said first surface and the liquid in said container, radiation absorption means laterally spaced from the said first and second surfaces of said container, said radiation absorption means being exposed to the sun and being adapted to be heated by solar energy incident thereon, said radiation absorption means comprising a second solar boiler disposed in laterally spaced relation to said container and having further liquid therein adapted to be heated by solar energy incident on said second solar boiler, and heat transfer means connecting said radiation absorption means to said second surface of said container for conducting heat from said radiation absorption means to said second surface whereby heat is delivered simultaneously to both sides of said container when solar energy is incident on said first surface of said container and on said laterally spaced radiation absorption means, said heat transfer means comprising means defining a liquid flow path which extends across the exterior of said second surface of said container, and means for circulating heated liquid from said second solar boiler through said liquid flow path thereby to supply heat to said second surface of said container.