Development project involves many aspects, in addition to solar cells and radio transmission technology, including power management, transportation and security. Have already begun preparations to launch active in various fields. y6142
For example, microwave power transmission, and Kyoto University to develop a device for transmitting power to simulate the sun. The components of the device include 133 halogen lamps are a simulated solar light, solar cells, micro-wave oscillator circuit, the transmitting antennas, and in 1848, the antenna formed by the electric antenna.
Furthermore, also considering the construction of concepts in the universe. For example prototype reflectors. Mirror aluminum vapor composition polyimide. Before the mirror the average intercalation of a diameter of about 49cm in the hexagon building, then expand the diameter of about twice 110cm.
In particular, through the inhalation chamber expansion into the interior air to ensure that the mirrors incorporated natural beginning. Lightweight mirror, only 785g. f2024a , Controlled trial sakase Adtech made.
To reduce shipping costs in difficulty
In the embodiment of SSPS, difficulties in addition to technical development, it has also made, including how to reduce costs. As the major components, photovoltaic cells, and the large number of microwave components. If 1GW class system, we need the equivalent of 1GW of solar cells, and billions of micro-waves (using the 5.8 GHz band frequency, note 1). If you want to put 20 to 30 SSPS sets, then we need a large number of parties, even to say “how much is not enough to build the new plant” (Sasaki JAXA). Perhaps, through mass production can reduce costs.
(Note 1) is called the rectifier antenna (rectifying antenna) antenna flat type in accordance with 0.6 to 0.8 range of wavelengths defined. 5.8GHz frequency band of electromagnetic waves with a wavelength of 5.2 cm, the correction if the antenna range 3 ~ 4cm. The rectifier is equipped with microwave antennas are required components.
In addition to component costs, the reduction of these components must also be transported to the delivery of cost of space. 1GW system level and then be delivered to 10000 2 million tons of supplies. pa3191u-4brs , Once only use existing rockets to transport expensive. So we must be able to use 10,000 ~ ¥ 20,000 / kg cost of transporting the universe, reusable rockets. JAXA hope that thanks to the popularity of space tourism, and a large number of FSS and logistics demand of production, can be reused rocket development speed and reduce costs considerably.
If these costs are cut, costs 1GW class construction SSPS can be controlled to within 1 to 2 trillion yen. SSPS main components, namely the life of the solar cell is not only for decades, but also reduce operating costs in relation to nuclear power plants. The combination of these factors, the projected cost of energy production SSPS is expected to control the ¥ 8 / kWh. In this case, even compared to existing energy production, we can tell the source fully competitive energy.
Also examined the use of laser
An example SSPS, JAXA has already been mentioned in public in using the system of microwave energy delivery, but the agency is also considering the use of the laser energy delivery. JAXA microwave method is called M (microwave)-SSPS, the method is called L laser (laser)-SSP.
The use of the laser without the use of solar cells. But the use of laser excited by sunlight directly stimulate type solid-state lasers. JAXA has developed the laser, and the evaluation of propagation characteristics of atmospheric effects.
Laser has the advantage, as it can reduce the diameter of the laser, therefore, compared the microwave may be affected by the electrical diameter reduced to 200 ~ 300m. To achieve SSPS, guaranteed by the feeder has enough covered are also one of the difficulties, it will allow the power supply unit to achieve the benefits of miniaturization is very visible. thinkpad r52 battery
On the other hand, the use of lasers exist, apart from the rain of laser will be absorbed, less efficient energy transfer. The need to increase the sunlight conversion efficiency laser.
Reaching the ground laser is mainly used for producing hydrogen as a fuel for fuel cells. In the manufacture of oxygen when immersed in seawater using PHOTOCATALYST to laser irradiation, or use of the photoelectric conversion element to convert the laser power after the method of electrolysis water. btp-63d1