Layout drawing

Identify the major safety hazards and eliminate them, if possible Locate critical areas on the flow diagrams and layout drawings... 

Once the candidate corrective measure alternatives have been identified, a more detailed evaluation of each alternative needs to be undertaken. From an engineering perspective, the first step in the evaluation process would include the development of a conceptual design for each alternative. The conceptual design would consist of a process description, a process flow diagram and a layout drawing. Preliminary sizing of equipment and utility and land requirements would be developed. In addition, chemical requirements and residuals produced can be estimated. From the conceptual design, permitability and residuals disposal issues can be identified and addressed. 

System description is tlie compilation of tlie process/plant information needed for tlie risk analysis. For e. ample, site locations, environs, weatlier data, process flow diagrams (PFDs), piping an instnmientation diagrams (P IDs), layout drawings, operating and maintenance procedures, technology documentation, process chemistry, and tliermophysical property data may be required. 

For V-belt drives with more than two sheaves, belt length is calculated from sheave coordinates and drive dimensions in layout drawings. 

Marked-up layout drawing indicating location, size, depth and maximum and minimum pressure of the main in the vicinity of the site. 

Photographs of the proposed site are useful and a site layout drawing is needed, but a perspective artistic impression showing buildings with architectural facades, vehicles and other site activities improves the presentation. Employing three-dimensional models discussed in Section 7.3 helps communication and allows layout options to be easily demonstrated and discussed. 

Availahility of layout drawings, flow diagrams, pipework details, control and wiring circuits, material lists and similar details... 

In the detailed design stage, everything must be specified. Each phase of the preliminary design must now be done in much more detail. The flow sheets develop into piping and instrument diagrams. The duty requirements for a piece of equipment become a specification sheet. The layout drawings may be replaced by a scale model, and a construction bid or detailed cost estimate is obtained to verify the previous cost estimate. 

There is usually a need to provide additional drawings to clarify certain aspects of the design. A typical example is the provision of layout drawings for instrument/interface rooms and for control rooms to show the location of key items of equipment and their relationship to other equipment that may already be installed. 

Layout drawings for cable ducts, joint boxes, and Joint plates. 

Layout drawings of overhead piping for power, lighting, and instruments. 

The mysterious designation Power Egg Shop that appeared on a layout drawing of the factory submitted to the Treasury among other papers... 

The pipe designer has been given process and engineering flow sheets and equipment layout drawings with or without scale models. He has chosen pipe sizes and materials according to the methods discussed in... 

DQ checks that the design documentation matches the requirements stated in the EDS. Layout drawings, operating and maintenance procedures, parts lists and system descriptions are included in the DQ. Both hardware and software configuration are reviewed together with the supplier s product documentation. DQ offers the opportunity to monitor the progress of project validation as well as any operational and safety issues, such as the use of radioactive instruments or access to analysis equipment for maintenance. 

Parts list generator The preparation of a parts list is important for product development, procurement, and manufacturing. This list is automatically generated from the CAD component layout drawing. The parts list can then be exchanged through interfaces with PPS systems. 

Layout drawings, process flow diagrams (PFDs), utilities flow diagrams (UFDs), P IDs, process and safety diagrams (PSDs), and general arrangements (GA)... 

Design (EEED) diagrams, equipment data/specification sheets etc. Prepare plot, equipment and pipe layout drawings Request quotations for equipment, construction, instrumentation, electrical work etc. Prepare drawings of control room, shelter, plant lighting etc. Design fire-fighting system... 

Summary of OSBL Pipe layout drawings scope variations and cost... 

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