Hire Writer During the maintenance period, the turbine blades were welded due to ppearance of cracks and cavities caused by long period of operation. The turbine was also equipped with a new electro hydraulic speed regulator supplied by Promavtomatika company.
However, risks can only be minimized when that safety plan is studied, understood and faithfully enacted by the critical stakeholders. These considerations need to involve the human element. Consider how the human element affected the disaster that occurred at the Sayano—Shushenskaya hydroelectric power station in Khakassia, Russia, on August 17, First there was a loud bang from one of the operating turbines Turbine 2.
Soon afterward, tons of water spouted from the cavity of the turbine and into the machinery hall. At that moment, chaos ensued. The machinery hall and rooms below its level flooded. The safety system, which was dependent upon power to operate, was now rendered useless.
The steel gates to the water intake pipes of the turbines, weighing metric tons each, had to be manually closed. This was performed by opening the valves with hydraulic jacks and keeping them open from 8: The operation took 25 minutes, which is near the highest speed that such an operation allows.
The emergency diesel generator was started at When Turbine 2 broke apart violently, 75 people were killed and more than 40 injured.
Both the turbine hall and engine rooms were flooded, and a collapsed ceiling contributed to 9 of the 10 turbines at the site being damaged or destroyed. Humans played major role Human factors played a major role in the build up to the disaster and also, as the disaster unfolded, they worked to save lives.
After the initial rupture, the water level rose, and employees raced toward the main entrance. Among the fleeing workers were supervisors in charge of safety and emergency response. The official report, released on October 3, identified poor management and technical flaws as the main causes of the accident.
For example, when Turbine 2 was placed under maintenance during the period extending from January to Marchafter the repairs were completed, the turbine wheel was not properly rebalanced.
When recommended performance band limits are exceeded, the turbines will begin to vibrate due to the force of water flow. This, in turn, leads to degradation of the turbine over time, due to excessive vibrations and shocks.
The problem was observed many times and yet the load on Turbine 2 was not reduced. During the morning of the accident, the plant general director, Nikolai Nevolko, was celebrating his 17th work anniversary.
Accountability has to be communicated clearly None of the 50 staff present around Turbine 2 had authority to make any decisions about taking further actions to cope with the increasing vibrations. They had become accustomed to those high levels of vibration and chose to ignore them.
To better understand how some of the various mistakes that occurred over time should have been addressed and prevented, click here. Supporting Content from Our Sponsor.According to this report, on 17 August at AM (local time) there was a fire at the hydroelectric power station of Bratsk which broke both communications and the automatic driving systems of other power plants in the region, including Sayano–Shushenskaya.
The situation was recovered on 17 August at Furthermore, andom inspections by an independent organization that is familiar to safety hazards should be encouraged. 7. 0 Conclusion To summarize this report, the accident at the Sayano-shushenskaya hydroplant was caused mainly by poor management and technical flaws.
It could have been avoided if a more tight maintenance had been implemented. Sayano-Shushenskaya, DoL: 17 August 19 Sayano-Shushenskaya was a wake-up call In the government requested an investigation of 60 medium -sized and large hydroelectric plants in Russia.
RusHydro, the plant's owner and operator, was the second-largest hydropower producer in the world, with 25, MW of capacity. Sayano-Shushenskaya accounted for a quarter of that output. Before the accident, Sayano-Shushenskaya was the largest hydropower plant in Russia and the sixth largest in the world.
Aug 01, · Engineering Seminars Project Sayano Shushenskaya Hydro Power Plant disaster john sandy. Need to report the video? Hydro-Horror: Lessons of disaster - Duration.
A view from the dam of the Sayano-Shushenskaya hydroelectric power station on the Yenisei River, where a turbine failure killed 75 people and crippled the facility, leaving hundreds of thousands of people without power.