 |
A Japanese research team has developed a new type of solar panel using wood pulp as a raw material. This “paper-paste†solar cell is environmentally friendly, cheap, ultra-thin and flexible, and may be of great use in the future.
According to the report of Japan’s “Daily News†website, a research team led by Nobuya Nobuta, an associate professor at Osaka University’s Institute of Industrial Science, used plant fibers in wood pulp as a raw material to successfully develop a transparent material with a thickness of only 15 nm through compression processing. , and use this as a substrate, the photoelectric conversion of organic materials and wiring embedded with pressure, resulting in paper solar cells.
Allegedly, the "paper paste" solar cell photoelectric conversion efficiency is only 3%, far less than the average conversion rate of solar cells for electricity generation 10% to 20%, but similar to the glass substrate solar cells, and portable and easy to use, simple manufacturing, cost Extremely low.
Stop Valves are closed by screwing a rubber gasket down onto a seat in the middle of the valve. Pros only use small versions that act as shutoff valves for fixtures such as sinks and toilets and outdoor sillcocks. Flow is inefficient because of the circuitous route the fluid (water, in most cases) has to follow. It's important to orient the valve in the right direction with the arrow (cast into the side of the valve) aligned with flow direction. That way, water flows against the bottom of the rubber gasket. If the valve is put in backward, the flow will force the gasket away from the top of the valve.
Stop Valves, Shower Stop Valve, Water Stop Valves, Brass Stop Valve
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsir-valves.com