According to the Japan Times report on May 27, 2014, JAXA has conducted a number of studies on the idea of ​​building large-scale solar sails for use in power generation in space. The basic idea of ​​the space-based solar energy system (SSPS) is to build a large-scale solar power station in the geostationary orbit to collect sunlight, convert the solar energy into electrical energy, and then transmit the capability to the ground antenna through microwaves or laser beams. SSPS will not be affected by the weather, and its power generation capacity is 5-10 times that of the ground solar power station. A 2.5-kilometer X2.3-kilometer SSPS can have a power of 1 billion watts, almost the same as a nuclear power plant. Japan currently focuses on the technologies needed to build large structures in space and focuses on the way to transmit energy to the Earth through microwaves or laser beams. JAXA is also developing a system for folding solar sails into rockets and then deploying them in space. JAXA originally hoped to conduct space-based demonstration verification tests in 2017 and begin commercial applications in 2030. However, this plan is increasingly impractical and JAXA plans to announce a new timetable in the coming years. A huge problem is the cost. JAXA initially estimated that the total cost of constructing SSPS was 1 trillion yen (US$9.83 billion). However, this money is far from enough. The 2.5-kilometer X2.3-km SSPS windsurfing and microwave generator that JAXA is studying will make the ISS 750 times larger and will weigh 26,600 tons. This requires multiple space transportation. Japan’s current H-2A launch vehicle has a static orbit carrying capacity of 5-6 tons, and each launch costs 10 billion yen. In addition, there is a need to fully study the safety of microwave transmission and its impact on the environment and human health. If Japan uses a laser beam to transmit solar energy, the SSPS can be smaller, but the laser beam cannot penetrate the clouds. (China Academy of Aerospace Science and Engineering Hou Dan)
Filter Disc is
processed by puncher with special mould. It's one of the filters; meanwhile it's
also one of the most widely used products. The wire
mesh disc is mainly based on the processing customized size and shape of the
customers. The filter mesh has so many different apertures, that it can meet
the needs of different filters. The filter
mesh appearance is very beautiful, for a variety of containers is no problem
The shape of Metal Filter Disc include rectangle, square,
round, ellipse, ring, rectangle, hat shape, waist shape and abnormity.
Wire mesh disc structure: single,
double, multilayer.
Processing technology: double or
three layers of spot welding, solder joints are generally 4 - 10 different,
also can according to customer requirements to do single-layer and double layer
hemming.
Rim material: stainless
steel plate, copper plate, galvanized plate, aluminum plate, etc.
Filter diameter: generally 5
mm to 600 mm
Use: Filter wire
mesh products (referred to as filter), mainly used in rubber, plastics
industry, grain and oil, oil refining, screening, chemical industry, light
industry, medicine, metallurgy, machinery, shipbuilding, automobile and tractor
industry in distillation, absorption, evaporation, filtration process,
eliminate entrained in the steam or the droplets in the gas and liquid foam,
and car used as air filter.
Filter Disc Filter Disc,Stainless Steel Liquid Filter Discs,Stainless Steel Filter Disc,Metal Filter Disc Anping Xinzheng Metal Wire Mesh Co., Ltd , https://www.sievingmesh.com
Japan is developing space-based solar power station