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The article indicates that engineering design criteria do not provide measures to prevent failures; this is evidenced by the occurrence of many accidents. Fracture prevention criteria should be derived from the principles of fracture mechanics, what should be developed further. However, the current concepts of fracture mechanics, when properly applied, provide an opportunity to ensure the reliability...
The article discusses the issue of energy savings in the operation of mining belt conveyors. Using the concept of energy consumption indicators, the directions for reducing the energy consumption of belt conveyors are presented by applying energy-efficient components, upgrading the drive system, or introducing organizational and technical changes in the conveying process
The paper presents the discussion of novel life raft designs. The existing solutions of life rafts available on the market have many drawbacks. In Polish industry, a company having the experience in production of life rafts is Stomil Grudziadz who are now on the way to start new production of modern life rafts. The design for operation has been proposed to introduce complex approach including life...
This paper regards design issues of large power output steam turbines for supercritical power plants. A special focus is set on features of turbine cycles, their parameters as well as on aerodynamical, material and strength problems. The second part of the paper presents an operation diagnostics system, which regards monitoring of stresses.
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