ABSTRACT
The aim of coarse analysis, also called preliminary hazard analysis (PHA), preliminary risk analysis, or energy analysis, is to identify and evaluate the hazards in a system. A simplified coarse analysis (without estimating the risk) is sometimes called hazard identification (HAZID). This chapter gives a detailed description of each step of the coarse analysis, which is similar to the steps of risk assessment. It also reviews the basic principles for hazard identification. In coarse analysis, the team uses its experiences and imagination in the identification of hazards and possible incidents within an area. Risk estimation serves as a basis for prioritisation in relation to safety measures and the need for detailed job safety analyses. The most serious consequence of the occurrence should be estimated from a realistic point of view of what may happen according to the scale shown in the chapter. The consequences are dependent on the amount and type of energy involved.
