A graphical inherent safety assessment technique for preliminary design stage

2019 ◽  
Vol 130 ◽  
pp. 275-287 ◽  
Author(s):  
Syaza I. Ahmad ◽  
Haslenda Hashim ◽  
Mimi H. Hassim ◽  
Roslina Rashid
Keyword(s):  
Safety Assessment ◽  
Design Stage ◽  
Preliminary Design ◽  
Inherent Safety ◽  
Assessment Technique ◽  
Preliminary Design Stage

scholarly journals CFD Investigation into Seakeeping Performance of a Training Ship

CFD letters ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 19-32
Author(s):  
Ahmad Fitriadhy ◽  
Syarifuddin Dewa ◽  
Nurul Aqilah Mansor ◽  
Nur Amira Adam ◽  
Ng Cheng Yee ◽  
...  
Keyword(s):  
Safety Assessment ◽  
Scale Model ◽  
Design Stage ◽  
Preliminary Design ◽  
Reliable Prediction ◽  
Subsequent Increase ◽  
Following Seas ◽  
Seakeeping Performance ◽  
Preliminary Design Stage ◽  
Computational Fluid Dynamics Cfd

The numerous ship accidents at sea have usually resulted in tremendous loss and casualties. To prevent such disastrous accidents, a comprehensive investigation into reliable prediction of seakeeping performance of a ship is necessarily required. This paper presents computational fluid dynamics (CFD) analysis on seakeeping performance of a training ship (full scale model) quantified through a Response of Amplitude Operators (RAO) for heave and pitch motions. The effects of wavelengths, wave directions and ship forward velocities have been accordingly taken into account. In general, the results revealed that the shorter wavelengths (l/L ? 1.0) have insignificant effect to the heave and pitch motions performance of the training ship, which means that the ship has good seakeeping behavior. However, the further increase of wavelength was proportional with the increase of RAO for her heave and pitch motions; whilst it may lead to degrade her seakeeping quality. In addition, the vertical motions behavior in the following-seas dealt with higher RAO as compared with case of the head-seas condition. Similarly, the subsequent increase of the ship forward velocity was prone to relatively increase of the RAO for her heave and pitch motions especially at l/L ? 2.0. It was merely concluded that this seakeeping prediction using CFD approach provides useful outcomes in the preliminary design stage for safety assessment of the training ship navigation during sailing.

Inherent safety for sustainable process design of process piping at the preliminary design stage

2019 ◽  
Vol 209 ◽  
pp. 1307-1318 ◽  
Author(s):  
Muhammad Athar ◽  
Azmi Mohd Shariff ◽  
Azizul Buang ◽  
Muhammad Shuaib Shaikh ◽  
Tan Lian See
Keyword(s):  
Process Design ◽  
Design Stage ◽  
Preliminary Design ◽  
Inherent Safety ◽  
Process Piping ◽  
Preliminary Design Stage

Using process stream index (PSI) to assess inherent safety level during preliminary design stage

2012 ◽  
Vol 50 (4) ◽  
pp. 1098-1103 ◽  
Author(s):  
Azmi Mohd Shariff ◽  
Chan T. Leong ◽  
Dzulkarnain Zaini
Keyword(s):  
Design Stage ◽  
Preliminary Design ◽  
Inherent Safety ◽  
Process Stream ◽  
Safety Level ◽  
Preliminary Design Stage

scholarly journals Chemical reactor inherent safety index at preliminary design stage

2018 ◽  
Vol 458 ◽  
pp. 012048 ◽  
Author(s):  
Muhammad Athar ◽  
Nor Ayuni Binti Zaidi ◽  
Azmi Mohd Shariff ◽  
Azizul Buang ◽  
Muhammad Ishaq Khan
Keyword(s):  
Chemical Reactor ◽  
Design Stage ◽  
Preliminary Design ◽  
Inherent Safety ◽  
Safety Index ◽  
Preliminary Design Stage

scholarly journals Distillation column inherent safety index at preliminary design stage

2018 ◽  
Vol 458 ◽  
pp. 012047 ◽  
Author(s):  
Azmi Mohd Shariff ◽  
Muhammad Athar ◽  
Azizul Buang ◽  
Muhammad Ishaq Khan ◽  
Heri Hermansyah
Keyword(s):  
Distillation Column ◽  
Design Stage ◽  
Preliminary Design ◽  
Inherent Safety ◽  
Safety Index ◽  
Preliminary Design Stage

Three-Tier Inherent Safety Quantification (3-TISQ) for Toxic Release at Preliminary Design Stage

2014 ◽  
Vol 625 ◽  
pp. 426-430 ◽  
Author(s):  
Dzulkarnain Zaini ◽  
Mohd Shariff Azmi ◽  
Chan T. Leong
Keyword(s):  
Design Stage ◽  
Risk Level ◽  
Preliminary Design ◽  
Inherent Safety ◽  
Safety Level ◽  
Inherent Risk ◽  
Process Route ◽  
Preliminary Design Stage ◽  
Second Tier ◽  
A New Technique

This paper proposes a new technique to evaluate the level of inherent safety of process plant during the preliminary design stage by using the combined assessment of process routes, streams and inherent risk for toxic release accidents. This technique is known as 3-Tier Inherent Safety Quantification (3-TISQ). The first tier is to screen the process routes and to select the ‘best’ route that is inherently less hazardous. Next, the inherent safety level of the streams within the selected process route can be prioritized using Toxic Release Stream Index (TRSI) as the second tier. Afterwards, the inherent safety level of the selected streams can be determined using toxic release inherent risk assessment (TRIRA) as the third tier. The acceptability level of the inherent risk for the selected streams can be obtained using a two-region risk matrix concept. If the inherent risk level is not acceptable, the improvement of the design can be done using the inherent safety principle until the level of the inherent risk is at the tolerable or acceptable region. 3-TISQ can also be extended to evaluate the inherent safety level of fire and explosion accidents.

scholarly journals Uniform deformation design of outrigger braced skyscrapers: A simplified method for the preliminary design stage

Structures ◽  
2021 ◽  
Vol 31 ◽  
pp. 395-405
Author(s):  
Arsalan Alavi ◽  
Elena Mele ◽  
Reza Rahgozar ◽  
Ehsan Noroozinejad Farsangi ◽  
Izuru Takewaki ◽  
...  
Keyword(s):  
Design Stage ◽  
Preliminary Design ◽  
Uniform Deformation ◽  
Simplified Method ◽  
Preliminary Design Stage

An Approximate Method for Intact Stability of Fishing Vessels

1999 ◽  
Vol 36 (03) ◽  
pp. 171-174
Author(s):  
Hüseyin Yilmaz ◽  
Abdi Kükner
Keyword(s):  
Design Stage ◽  
Design Parameters ◽  
Preliminary Design ◽  
Ship Stability ◽  
Fishing Vessels ◽  
Initial Stability ◽  
Intact Stability ◽  
Preliminary Design Stage ◽  
Reduce Risk ◽  
Vessel Stability

It is well known that stability is the most important safety requirement for ships. One should have some information on ship stability at the preliminary design stage in order to reduce risk. Initial stability of ships is an important criterion and can be closely evaluated in terms of form parameters and vertical center of gravity. In this study, using some sample ship data, approximate formulations are derived by means of regression analysis for the calculations expressed in terms of ship preliminary design parameters that can easily provide approximate GM calculations. Thus designers can be provided with ship stability at the preliminary design stage, and also a set of appropriate design parameters for improving vessel stability can easily be determined.

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