A series of failures of a radial inflow hot gas expander driving a centrifugal compressor in a nitric acid plant plagued the second author’s former company over a 24 year period. The 19,000 hp single-stage radial inflow expander inlet and discharge blade tips would fail in service, destroying the inlet nozzle vanes and expander wheel, and causing extensive damage to the rotor, bearings, seals, ...

Nowadays industries like mining are focused in the need of improving processes towards net zero emissions and accomplishing with united nations' sustainable development goals. This article presents a case at copper mine where an artificial intelligence solution is adopted to optimize industrial processes. The paper illustrates way software using low code platform framework can democratize use a...

In the research of steam turbine rotor, start-up optimization is a very key problem. A series can greatly improve efficiency and safety performance unit. The inseparable from analysis process mathematical model startup unit, because unit be regarded as function to find optimal solution. This paper analyzes 300 MW turbine, through data used in actual power plant, gives cold according so further ...

U ovom radu, kao prvi korak, opisane su neke od najrelevantnijih teorija za pokretanje i analizu strartup projekata. Nakon teorijskog pregleda, analiziran je startup, koji u momentu pisanja rada procesu razvoja. Cilj ovog primeniti Lin Kanvas Model kreiranju preciznije vizije smera razvoja obrađenog startup projekta.

Multimedia data poses challenges for efficient storage and retrieval due to its large size and playback timing requirements. For applicat;ions that store very large volumes of multimedia data, hierarchical storage offers a scalable and economical alternative to store data on magnetic disks. In a hierarchical storage architecture data is stored on a tupe or optical disk based tertiary storage la...

Maintenance or repair of water mains may require the interruption of flow. Re-initiation of flow may present opportunities for the interaction of air and the accelerating water, resulting in undesirable pressure transients. This study focuses on air intrusion during flow startup in an initially filled horizontal pipeline supplied by a constant-head reservoir. Flow was initiated by opening the d...

Resulting from the technological revolution from the last decades, we observed many software startup ecosystems emerging around the globe. Having tech entrepreneurs as their main agents, some ecosystems exist for more than 50 years, while others are newly born. This difference in terms of evolution and maturity makes the task of comparing different tech hubs a challenge. Moreover, nascent ecosy...

Performance-critical components of virtual machines are often implemented in assembly language. Traditionally, this code is compiled with an assembler and linked statically with the rest of the system. Generating this code at startup time has significant engineering advantages over the conventional approach: The generated machine code is much safer, easier to maintain, and has better performanc...

The fact that systems fail should come as no surprise to anymore who has ever developed or worked on a system. A failure reduces the availability of the system and hence the productivity of entities using this system. To increase system availability, several approaches have been developed; these approaches range from simple techniques such as restarting the entire system, to complex algorithms ...

Lateral nozzle forces are known to cause severe structural damage to any new rocket engine in development during test. While three-dimensional, transient, turbulent, chemically reacting computational fluid dynamics methodology has been demonstrated to capture major side load physics with rigid nozzles, hot-fire tests often show nozzle structure deformation during major side load events, leading...