Plant layout designer

The plant layout design and whether the processes involve dry, wet or contaminated environments with possibly elevated temperatures will affect the principles adopted... 

The ARC is described in Chapter 2 (Section 2.3.2.3). Measurements can be made to determine dT/dt, dp/dt, and pmax. The important AHd or AHt can then be calculated. Using pmax, the gas production per unit mass can also be calculated. This value is used for estimating the pressure load for the plant unit in the vessel design and the plant layout design. 

The plant layout designer must develop layout documents during the conceptual and study ptcees of a projea. The skills needed include ... 

With the planning plot plan 9S a basis, the following hinctions are a standard part of the plant layout designer s activities ... 

These activities must be closely coordinated among all the plant design and construction participants involved in the engineering and construction phases of a projea to reduce costly rework and enable the plant layout designer to generate the optimum design on schedule. 

The major activities of the plant layout designer to achieve an optimum plant configuration take place... 

Line run This is the physical route a pipe takes between any two points as set by the plant layout designer. 

Maintenance Equipment and its components require routine maintenance for continued reliability and safe operation. A plant layout designer must provide unobstruaed space for service equipment and personnel to access and remove components without removing unrelated equipment and piping. 

Ideally, all the different types of equipment within the process unit would be the same size. This rarely occurs, however, and the plant layout designer often... 

Whether the planned plant is an inline arrangement or housed in a struaure, the plant layout designer must make provisions for operator and maintenance access. The designer must review the items of equipment that are included in the process and plan for their operation and maintenance requirements. For example, towers must be located in a position to allow for the removal of internals, reactors require space for catalyst loading and unloading, shell and tube exchangers require space for bundle removal, and rotat-... 

The previous sections have outlined the information required to locate equipment and the general content of the typical process unit. At this stage, the plant layout designer should prepare a sketch of the unit configuration and a line run to confirm that the equipment is positioned for the most favorable piping interconnection. The line run can be prepared by dia-... 

Exhibit 4-27 illustrates how primary process considerations govern the elevation of the surface condenser and some of its auxiliary equipment. Because a pump is needed to remove the condensate from the hot well, the pump net positive suction head (NPSH) must be satisfied to operate satisfactorily. Vertical pumps are generally used in this application because the NPSH requirement is calculated from the bottom of the lower impeller for vertical pumps, compared with the centerline of the inlet nozzle for horizontal pumps. Setting the elevation of the inter-after condenser, usually located to the side of the suifice condenser, can be done with fewer restriaions. Ilie bottom of the inter-after condenser shell must not be more than 3 ft (900 mm) below the condensate return nozzle on the side of the hot well. The plant layout designer is then free to set the elevation as high as necessary. 

Compressor installations and most other equipment may be located either in open areas of the plant or in struaures that have a roof only or a curtain wall or are completely enclosed. For the plant layout designer, client preference and climate conditions are the two primary considerations that determine the inclusion of compressor shelters. The faa that machines may be either elevated or grade mounted creates a variety of maintenance problems for the plant layout designer. 

To streamline the high-pressure, high-temperature steam inlet piping to the turbine, the plant layout designer should review the compressor outline drawing to locate the neutral axis, At this point, the turbine is anchored to the steel frame. As depicted in Exhibit... 

The first step in drum layout is setting the height of the drum. To do this, the plant layout designer requires the following information ... 

Whenever furnaces are arranged in groups on a plot plan, the plant layout designer should consider using a common stack, as depiaed in Exhibit 7-32. 

Exhibit 7-43 also shows the product outlet line and its decoking hook-up. Line A is set up in its usual operation configuration line B is set in the decoking mode. As the steam and air are blown through the radiant tubes, any waste is carried to the sewer or, if preferred, to a drum for removal. The vent line is run to the stack. Once again, the plant layout designer... 

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