TABLE OF CONTENTS In Chapter 4, we have focused attention on the various hazard identification (HAZID) tools available. This is the largest chapter in this book, as hazard identification forms the foundation of risk management.
A number of hazard identification techniques have been introduced. Some are suitable directly for continuous flow processes (e.g. HAZOP), and others are more suited to sequential processes, man-machine interfaces, and non-process operations such as maintenance and mechanical handing. Methods, by which human factors can be accounted for in hazard identification, have been described.
The advantages and limitations of the various HAZID tools are described, with suggestions on the choice of technique for various applications through the facility life cycle. Fault tree and event tree analysis form the border line between hazard identification and hazard analysis, with a stronger foothold in the latter camp. Therefore, they only get a mention in Chapter 4, with more details in Chapter 8.
Illustrative examples are provided to describe the technique. Simple processes have been used in the examples to ensure that the reader is not lost in the processes used for illustration, but understands the techniques.
We have emphasized the fact that no single HAZID tool can by itself assist in identification of the full range of hazards in the process, covering all the operations. A judicious combination of different techniques must be used for any given facility. Suggestions on the choice of techniques have been made for the various stages of the facility life cycle.
A large number of...
