Hi All, Mình đang muốn tìm hiểu về HAZOP và HAZID, Mong ACE biết cùng chia sẻ giúp để anh em hiểu sâu hơn về 2 khái niệm này và nghĩa của các từ viết tắt bên dưới nhé. HAZID ( Hazard Idnetification) HAZID (Hazard Identification) is a technique for early identification of potential hazards and threats. The technique has two styles, Conceptual and Detailed and should be applied at the very outset of a new venture or during the early stages of a development. It is therefore likely to be the first formal HSE-related study for any new project. The major benefit of HAZID is that early identification and assessment of the critical HSE hazards provides essential input to project development decisions. This will lead to safer and more cost-effective design options being adopted with a minimum cost of change penalty. The HAZID technique is: HAZID is done at a very early stage in the project, at the scope and flowsheet stage • a means of identifying and describing occupational HSE hazards and threats at the earliest practicable stage of a development or venture • a meeting employing a highly experienced multi-discipline team using a structured brainstorming technique, based on a checklist of potential HSE issues, to assess the applicability of potential hazards • a rapid identification and description process only, not a forum for trying to solve potential problems. HAZOP ( Hazard & Operability Study): (ICI) Hazop is done after the design reviews are completed and the P&IDs are issued. After the Hazop, when all the recommendations are implemented, the P&Ids are approved for construction. Hazard and Operability study is a formal, systematic, critical examination of the process and engineering intentions of the facilities to assess the hazard potential due to mal-operation or mal-function of individual items of equipment and the consequential effects on operation of the facility as a whole. The method identifies the possible hazards and postulates possible accident scenarios. The safety features provided in the design are then reviewed to determine whether the safeguards are adequate or not. Actions are recommended if deficiency is found in the safeguards provided. The process demonstrates to the owner / management that prudent steps have been taken to make the installation as safe as practicable. HAZID deals with non or other than process related hazards like facility hazards etc. HAZOP deals with process related hazards, . HAZOP focuses on the equipment or pipeline or piece of equipment as node, whereas HAZID takes the facility as a node. HAZOP deals with the internal hazards of the equipment and HAZID deals with the external hazards. While HAZID provides inputs for the COMAH or QRA, HAZOP provides input for the design, operation and maintenance etc. Both techniques use the guidewords to initiate the thoughts making the group hazard identification systematic. Both are complimentary to each other. HAZID study never look in to OPERATION related scenarios. HAZID is an early stage(CONCEPTUAL, FEED) hazard analysis tool in plant life cycle, which identifies scenarios with consequence affecting beyond plant boundary. To supplement what has been discussed earlier HAZID is used in all stages. Though HAZID is very handy as PHA tool during early stages for plant life cycle in making crucial decisions like site selection, layout, identification of Major Accident Scenarios etc it is done at various stages of plant life cycle including operational and decommissioning phase. Many corporate standards including ADNOC, UAE insist on this requirement. Utility of HAZID varies depending on the stage we use it. For example during Construction stage, construction stage related issues are discussed and in operational stage issues like Management of Change are also dealt with. Boundaries of HAZID can be defined depending on the corporate philosophy and other supplementary tools used by the corporate to avoid overlapping of boundaries/ duplication of issues. Thân ái!