초록 ▼

The present invention was achieved in order to provide a solar thermal system, wherein using a small amount of water as a medium, solar thermal energy can be largely and efficiently collected as latent heat of saturated steam or superheated steam with 1 atmospheric pressure, and the generated satura

The present invention was achieved in order to provide a solar thermal system, wherein using a small amount of water as a medium, solar thermal energy can be largely and efficiently collected as latent heat of saturated steam or superheated steam with 1 atmospheric pressure, and the generated saturated or superheated steam is automatically transported to be stored with ease and certainty, so that the light weight and downsizing of the apparatus are achieved, and that the apparatus can be easily designed, produced and maintained, resulting in a substantial reduction in cost, which comprises a steam generating chamber to evaporate droplets by solar heat therein, being formed between an absorbing body and a heat insulation case, and a droplet supply means to supply droplets into the steam generating chamber, wherein steam generated in the steam generating chamber is used as a heating medium.

대표청구항 ▼

1. A solar thermal system, comprising: a solar thermal collector which comprises, an absorbing body, made of a metal plate having a first surface on which a selective absorption film with a large absorptance of solar light and a small emissivity of infrared rays is formed, and a second surface o

1. A solar thermal system, comprising: a solar thermal collector which comprises, an absorbing body, made of a metal plate having a first surface on which a selective absorption film with a large absorptance of solar light and a small emissivity of infrared rays is formed, and a second surface on which is disposed a black body film, a heat insulation case fitted to the second surface of the absorbing body, a steam generating chamber formed between the hat insulation case and the absorbing body, a droplet supply unit to supply droplets into the steam generating chamber, a transport system whereby steam generated in the steam generating chamber is transported outside the system, wherein the transport resistance of the transport system is set so that the steam pressure within the steam generating chamber can be kept at almost 1 atmospheric pressure; a steam storage unit, being connected through the transport system of the solar thermal collector, with an opening open to the atmosphere in the lower portion and a steam storage portion in the upper portion; a heat-using device or a power-using device, being connected through a steam piping to the steam storage unit; and a discharge device to discharge a gas introduced to the heat-using device and the steam piping. 2. A solar thermal system according to claim 1, wherein a mixer to mix steam is mounted in the steam generating chamber. 3. A solar thermal system according to claim 1, wherein the droplet supply unit also serves as a mixing means. 4. A solar thermal system according to claim 1, further comprising a transmission body which transmits light arranged above the absorbing body so as to cover the absorbing body. 5. A solar thermal system according to claim 1, wherein the heat-using device is a heat exchanger and the power-using device is a steam turbine. 6. A solar thermal system, comprising: a solar thermal collector which comprises, an absorbing body, made of a metal plate having a first surface on which a selective absorption film with a large absorptance of solar light and a small emissivity of infrared rays is formed, and a second surface on which is disposed a black body film, a heat insulation case fitted to the second surface of the absorbing body, a steam generating chamber formed between the heat insulation case and the absorbing body, a droplet supply unit to supply droplets into the steam generating chamber, a transport system whereby steam generated in the steam generating chamber is transported outside the system, wherein the transport resistance of the transport system is set so that the steam pressure within the steam generating chamber can be kept at almost 1 atmospheric pressure; a steam storage unit, being connected through the transport system of the solar thermal collector, with an opening open to the atmosphere in the lower portion and a steam storage portion in the upper portion; a heat-using device or a power-using device, being connected through a steam piping to the steam storage unit; a discharge device to discharge a gas introduced to the heat-using device and the steam piping; and an outside-air intake regulator. 7. A solar thermal system according to claim 6, wherein the outside-air intake regulator is controlled using a controller, based on data from a detector to detect the amount of steam generated and the amount of steam stored in the steam storage unit. 8. A solar thermal system according to claim 6, wherein a mixer to mix steam is mounted in the steam generating chamber. 9. A solar thermal system according to claim 2, wherein the droplet supply unit also serves as a mixing means. 10. A solar thermal system according to claim 6, further comprising a transmission body which transmits light arranged above the absorbing body so as to cover the absorbing body. 11. A solar thermal system according to claim 6, wherein the heat-using device is a heat exchanger and the power-using device is a steam turbine.