operability analysis as one of the most important bridges between process design and process control helps the process designer to investigate the control issues quite early in the design stage. recently, vinson and georgakis suggested a steady state geometrical operability index as a quantitative measure for assessment of process operability. in this paper, dme fixed-bed reactor is heterogeneo...

Operability analysis as one of the most important bridges between process design and process control helps the process designer to investigate the control issues quite early in the design stage. Recently, Vinson and Georgakis suggested a steady state geometrical operability index as a quantitative measure for assessment of process operability. In...

Most offshore wind farms are bottom-fixed at sites with less than 50 m of water depth. For deeper waters, floating platforms economically viable and, for many countries that have steep continental shelves, this is the only option developing farms. If energy being harvested far in deep waters (more 200 depth and hundreds km from coast), one possible alternative use Floating Production Storage (F...

Hazard and operability (HAZOP) methodology is a Process Hazard Analysis (PHA) technique used worldwide for studying not only the hazards of a system, but also its operability problems, by exploring the effects of any deviations from design conditions. Our paper is the HAZOP review intended to gather HAZOP-related literature from books, guidelines, standards, major journals, and conference proce...

Process operability was originally proposed as an approach for the design and control of complex chemical processes. This approach has been applied to processes that are described by high-dimensional linear models. For nonlinear systems, an operability-based method for design and intensification of low-dimensional membrane reactor systems has also been reported. However, operability algorithms ...

Motor-spindles are belong to a special class of complex dynamic systems natural and natural-anthropogenic origin, which can be realized both translational rotational motion, represent variety developing species. Such used in metalworking complexes, lathes, milling, drilling, grinding, multi-purpose other machines. In modern designs spindle units rolling bearings, hydrostatic, hydrodynamic, gas-...

Many chemical processes exhibit strong nonlinear dynamic behaviours which may present significant challenges to process operation and control, including input and output multiplicities. Input multiplicity refers to the phenomenon where different inputs (control action) result in the same steady state process output, which is commonly encountered in biochemical reactors. A process with input mul...