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Planetary Gear Ratio calculations

Planetary Gear Ratio calculations

A question that I often get is how to work out planetary gears using the gear template generator Working out the tooth counts for planetary gears is actually not that complicated, so I initially neglected to mention how to do it. But having received the question a number of times, I’ll elaborate. For convenience, let’s denote R, S, and P as the number of teeth on the gears. R  Number of teeth in…

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Russian heavy machine-building company Atommash said yesterday it had completed production of the reactor pressure vessel (RPV) for the Ostrovets nuclear power plant in Belarus. It is the first RPV manufactured at Atommash’s production site after a nearly 30-year hiatus and the first since it became part of Rosatom, the Russian state nuclear corporation, in 2012.

The completed vessel for Ostrovets (Image: AEM-Technology)

A ceremony to mark shipment of the reactor pressure vessel (RPV) to the plant’s construction site was attended by Andrey Nikipelov, general director of Atomenergomash (AEM), Igor Kotov, general director of AEM-Technology, Mikhail Mikhadyuk, deputy energy minister of Belarus, and Mikhail Tikhonov, industry and energy minister of the Rostov District.

Atommash is part of AEM-Technology, which is a unit of AEM, Rosatom’s power engineering subsidiary.

“The revival of the Atommash industrial complex was one of Rosatom’s priorities,” Nikipelov said at the ceremony. “Work to upgrade equipment, train personnel and introduce new technologies has been done in the shortest time possible. Specialists from several companies, including Tsniitmash and Zio-Podolsk helped with this work.”

Tsniitmash, another subsidiary of AEM-Technology, develops steel and welding materials used in reactor casings, steam generators, pressure compensators, hydraulic tanks, primary circulation pumps, stainless steel equipment and other equipment, including turbines and piping for VVER-1000 and AES-2006 reactors. Zio-Podolsk, an AEM subsidiary, also manufactures equipment for nuclear power plants, including steam generators.

Atommash’s completion of the RPV for Belarus confirms that it has “completely regained its competence” as a manufacturer of key equipment for nuclear power plants, Nikipelov said. Atommash is the only company in Russia that is able to produce the full set of equipment for a nuclear island, he added, including the reactor vessel and steam generators. Atommash is able to make up to four sets of such equipment per year, he said.

Atommash is currently working on equipment for the Novovoronezh and Rostov nuclear power plant projects in Russia. It will soon start work on nuclear island equipment for the Akkuyu and Kudankulam plants in Turkey and India, respectively.

Sourced by ekomeri.com

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