An apparatus for heating a working fluid of a gas turbine-solar power generation system, comprising, sequentially connected, a cold air flow channel, a heat collecting cavity, and a hot air passage. The hot air passage is formed by connecting an inner housing on the front side to a supplemental heating section on the rear side. Also comprised is a burner for heating a primary heating air within the supplemental heating section when having insufficient solar power, and the burner is arranged at the supplemental heating section.

In one embodiment a solar collector is provided. The collector has a modular heat transfer component, which includes a heat transfer core to heat up a heat transfer fluid. The collector makes use of the heat transfer fluid itself to prevent heat loss through radiation.

The present invention relates to a dual-passage open-type solar heat absorber having a porous plate array, and more particularly, to a dual-passage open-type solar heat absorber which is formed in a form of a rectangular-shaped container in order to increase a contact area with collected sunlight and easily extend in a lateral direction or in a form of a circular-shaped container which is advantageous when a pressure is applied thereto, and which includes a main body formed in a formed of a rectangular or circular-shaped container by using a three-layered tube to form a dual passage therein so that heat is prevented from being lost through an outer wall.

In one embodiment a solar collector is provided. The collector has a modular heat transfer component, which includes a heat transfer core to heat up a heat transfer fluid. The collector makes use of the heat transfer fluid itself to prevent heat loss through radiation.