초록 ▼

A solar heat collector having an elongated housing, a segmented absorber plate, inlet and outlet header pipes fluidly connected by a plurality of riser pipes for conducting heat transfer fluid through the collector, multilayered insulation for minimizing heat losses from the collector and at least o

A solar heat collector having an elongated housing, a segmented absorber plate, inlet and outlet header pipes fluidly connected by a plurality of riser pipes for conducting heat transfer fluid through the collector, multilayered insulation for minimizing heat losses from the collector and at least one segmented, arcuate transparent cover for allowing passage of solar radiation therethrough while isolating the interior of the collector from the elements. The multilayered insulation is constructed so as to withstand temperatures of about 400°F. without any attendant thermal degradation.

대표청구항 ▼

A solar heat collector comprising: means for absorbing solar radiation; means for transporting heat transfer fluid through said solar heat collector, said fluid being heated by said absorber means; an insulation for minimizing heat losses from said collector, said insulation exhibiting thermal stabi

A solar heat collector comprising: means for absorbing solar radiation; means for transporting heat transfer fluid through said solar heat collector, said fluid being heated by said absorber means; an insulation for minimizing heat losses from said collector, said insulation exhibiting thermal stability at stagnation condition temperatures of about 400°F., said insulation consisting essentially of: a first insulating layer having a relatively low temperature stability and a relatively low thermal conductivity: a second intermediate layer of metallic foil; a third insulating layer having a relatively high temperature stability and a relatively low thermal conductivity; means for fixedly securing said first, second, and third layers together, and means for housing said absorber means, said transporting means and said insulation, said insulation and said absorber means being relatively positioned to one another such that said third insulating layer is in closer proximity to said absorber means than said first insulating layer whereby said second intermediate layer of metallic foil prevents local buildup of heat throughout said insulation and prevents migration of low molecular weight material generated at said stagnation condition temperatures thereby preventing condensation of said low molecular weight material on cooler surfaces and maintaining a high thermal efficiency for the collector.