نتایج جستجو برای: Operability index

تعداد نتایج: 398533  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
mohammad farsi saeid mazinani, abdolhossein jahanmiri

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...

ژورنال: مهندسی دریا 2004
بهزاد, مهدی, تقی پور, رضا, راد, منوچهر, سادات حسینی, سید حمید, موسوی راد, سید میثم,

This paper holds a parametric study on seakeeping performance for one kind of submersible vehicles, a tourist submarine. This analyis has been performed from the aspect of motion sickness incidence by using a strip theory hydrodynamics solver. The parameters include sea state, sea direction, depth, speed and duration of operation. Results prove head seas to be more violative than following seas...

2015
Ross Edward. Swaney Ignacio E. Grossmann

One of the key components of chemical plant operability is flexibility the ability to operate over a range of conditions while satisfying performance specifications. A general framework for analyzing flexibility in chemical process design is presented in this paper. A quantitative index is proposed which measures the size of the parameter space over which feasible steady-state operation of the ...

Journal: :Journal of Marine Science and Engineering 2023

The inherent complexity of large ships makes it challenging to evaluate ship designs systematically and scientifically. Knowledge-based expert systems can be reasonable solutions. However, this problem needs more rationality better operability, especially in complicated ship-equipment suitability evaluation problems with numerous indicators complex structures. This paper presents a hybrid multi...

2008
Thomas E. Marlin

This paper presents a proposal for increased emphasis on operability in the Chemical Engineering capstone design courses. Operability becomes a natural aspect of the process design course for a project that is properly defined with various scenarios and uncertainty. Key topics in operability are the operating window, flexibility, reliability, safety, efficiency, operation during transitions, dy...

Journal: :Ships and Offshore Structures 2022

Many ship accidents are experienced by small boats. With a large number of fishing boats in Indonesia, the risk potential is high. Therefore, an operability analysis must be conducted for various loading conditions to address any safety issues due severe vessel motion. The net cargo boat will change during its operation at sea and then affect vessel’s seakeeping characteristics. This study aims...

Journal: :Computers & Chemical Engineering 2010
Thomas E. Marlin

This paper presents a proposal for increased emphasis on operability in the Chemical Engineering capstone design courses. Operability becomes a natural aspect of the process design course for a project that is properly defined with various scenarios and uncertainty. Key topics in operability are the operating window, flexibility, reliability, safety, efficiency, operation during transitions, dy...

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