Pumped storage stations undergo numerous transition processes, which make the pump turbines go through the unstable S-shaped region. The hydraulic transient in S-shaped region has normally been investigated through numerical simulations, while field experiments generally involve high risks and are difficult to perform. In this research, a pumped storage model composed of a piping system, two mo...

During December 2008 to January 2009, two persons contracted Legionnaires’ disease in a newly built block of flats in a suburb of Copenhagen in Denmark. Polymerase chain reaction and culture was used to diagnose Legionnaires’ disease in this cluster. Isolates from both patients tested positive for Legionella pneumophila serogroup 1 subgroup Philadelphia sequence type 1 and the same strain was d...

The flow and dispersion characteristics of the fire extinguishing agent in pipings concentration distribution nacelle are essential for optimizing aircraft system. In present work, we developed a three-dimensional CFD model to simulate transport piping nacelle. results show that length structure near nozzles affect concentration, pressure, rate, agent. smaller bend angle connection with main pi...

Applying the modular technology of developing of the problem-oriented extensions of a CAD system to a problem of automation of creating of the axonometric piping diagrams on an example of the program system TechnoCAD GlassX is described. The proximity of composition of the schemas is detected for special technological pipe lines, systems of a water line and water drain, heating, heat supply, ve...

A team of undergraduate students from mechanical engineering and poultry science was assembled and worked cooperatively on a food safety project. The particular problem addressed was the development of a non-chemical-based clean-in-place system for cleaning the piping used to transport giblets in a poultry processing plant. The design and testing of the system required engineers to work with po...